![Roberto Quaglia](https://profiles-cardiff.imgix.net/attachments/3922?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Roberto Quaglia
- Ar gael fel goruchwyliwr ôl-raddedig
Timau a rolau for Roberto Quaglia
Uwch Ddarlithydd - Arweinydd Grŵp Ymchwil CHFE
Trosolwyg
Rwy'n Uwch-ddarlithydd yn yr Ysgol Peirianneg. Mae fy ymchwil yn canolbwyntio ar chwyddseinyddion pŵer amledd uchel
Fi yw Arweinydd Grŵp Ymchwil y Ganolfan Peirianneg Amledd Uchel:
https://www.cardiff.ac.uk/research/explore/research-units/centre-for-high-frequency-engineering
Rwyf wedi cyhoeddi tua 130 o bapurau gwyddonol a adolygwyd gan gymheiriaid, gyda mwy na 45 ohonynt ar gyfnodolion rhyngwladol. Rwy'n cyd-awdur y llyfrau "Electronics for Microwave Backhaul" a "Telecommunication Electronics" a gyhoeddwyd gan Artech House.
Rwy'n Diwtor Blwyddyn ar gyfer y cyrsiau MSc sy'n gysylltiedig â thechnolegau Microdon a Di-wifr ac Electroneg Lled-ddargludyddion Cyfansawdd.
Rwy'n addysgu modiwlau lefel meistr ar dechnegau microdon uwch, a modiwlau israddedig ar Electroneg Analog a Digidol.
Cyhoeddiad
2026
- Camarchia, V. and Quaglia, R. 2026. Special issue on power amplifiers for communications and satellite applications [Guest Editorial]. IEEE Transactions on Microwave Theory and Techniques 74 , pp.6725-6726. (10.1109/tmtt.2026.3715076)
- Urvoy, J. et al. 2026. Dual input characterization of an asymmetric orthogonal load modulated balanced amplifier for enhanced linear performance. Presented at: 2026 IEEE MTT-S Radio Frequency Technology and Techniques Symposium (IMS RFTT) Boston, MA 07 - 12 June 2026. 2026 IEEE MTT-S Radio Frequency Technology and Techniques Symposium (IMS RFTT). IEEE. , pp.589-592. (10.1109/imsrftt43070.2026.11602430)
- Urvoy, J. et al. 2026. Orthogonal load-modulated balanced amplifier for back-off efficiency enhancement and agile frequency configuration. IEEE Transactions on Microwave Theory and Techniques 74 (2), pp.1174-1186. (10.1109/TMTT.2025.3604180)
- Quaglia, R. 2026. Auxiliary matching network design in sequential LMBAs: a geometrical explanation. Presented at: 2026 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Hollywood, CA, USA 18-21 January 2026. 2026 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE(10.1109/PAWR69496.2026.11408485)
2025
- Powell, A. et al. 2025. Efficient output power configuration in a K-band power amplifier using a split-gate layout. International Journal of Microwave and Wireless Technologies 17 (19), pp.1680-1689. (10.1017/S1759078725101682)
- Collier, A. et al. 2025. Large-signal performance comparison of ion implant and mesa etch isolated AlGaN/GaN HEMT switches on silicon. Presented at: European Microwave Integrated Circuits Conference Utrecht, The Netherlands 23 September 2025. Proceedings of the 20th European Microwave Integrated Circuits Conference. IEEE. , pp.230-233. (10.23919/EuMIC65284.2025.11234588)
- Al-Rawachy, A. et al. 2025. Automated Cardiff model complexity identification and parameters extraction from measured tailored A-pull data. IEEE Journal of Microwaves 5 (5), pp.1150-1161. (10.1109/JMW.2025.3600995)
- Baddeley, A. , Quaglia, R. and Tasker, P. J. 2025. Calibration error reduction in millimeter-wave load-pull systems measuring highly-reflective loads. IEEE Transactions on Microwave Theory and Techniques 73 (6), pp.3552-3564. (10.1109/TMTT.2024.3495544)
- Ghozati, S. U. et al. 2025. Cardiff behavioral model of a Ka-Band SPDT switch trained on structured minimization of load-pull characterization data. Presented at: 2025 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Torino, Italy 10-11 April 2025. Proceedings of the International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. , pp.1-4. (10.1109/INMMIC64198.2025.10975719)
- Urvoy, J. , Quaglia, R. and Cripps, S. C. 2025. Design and simulation of a Doherty-mode OLMBA for enhanced back-off efficiency over an octave bandwidth. Presented at: 2025 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Torino, Italy 10-11 April 2025. Proceedings of the International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. , pp.1-4. (10.1109/INMMIC64198.2025.10975674)
- Van Den Heuvel, I. et al. 2025. Improved iterative envelope simulation for the efficient prediction of the impact of wideband modulated signals on power amplifier performance. Presented at: 2025 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Torino, Italy 10-11 April 2025. Proceedings of the International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. , pp.1-4. (10.1109/INMMIC64198.2025.10975660)
- Tian, M. et al. 2025. Artificial neural network nonlinear transistor behavioral models: Structure and parameter determination process based on the Cardiff Model. IEEE Transactions on Microwave Theory and Techniques 73 (2), pp.745-759. (10.1109/TMTT.2024.3434959)
- Ghozati, S. U. and Quaglia, R. 2025. Ka-band single-pole double-throw switch in GaN MMIC technology. International Journal of Microwave and Wireless Technologies (10.1017/S1759078725000108)
- Piacibello, A. et al., 2025. Design and extensive NPR characterization of a highly-linear SatCom GaN MMIC Doherty PA. IEEE Transactions on Microwave Theory and Techniques 73 (1), pp.156-166. (10.1109/TMTT.2024.3474092)
2024
- Azad, E. M. et al. 2024. Design and experimental characterization of an asymmetric GaN MMIC Doherty power amplifier for Ka-Band transmitters. Presented at: 19th European Microwave Integrated Circuits Conference (EuMIC) Paris, France 23-24 September 2024. 2024 19th European Microwave Integrated Circuits Conference (EuMIC). IEEE. , pp.158-161. (10.23919/eumic61603.2024.10732357)
- Powell, A. G. et al. 2024. Efficient output power configuration in a K-Band power amplifier using a split-gate layout. Presented at: 19th European Microwave Integrated Circuits Conference (EuMIC) Paris, France 23-24 September 2024. 2024 19th European Microwave Integrated Circuits Conference (EuMIC). IEEE. , pp.275-278. (10.23919/eumic61603.2024.10732591)
- Rubio, J. J. M. , Azad, E. M. and Quaglia, R. 2024. A differential combiner for quasi-complete cancellation of output capacitance in mm-wave power amplifiers with high- Q devices. IEEE Transactions on Microwave Theory and Techniques 72 (9), pp.5309-5318. (10.1109/TMTT.2024.3365932)
- Bogusz, A. et al. 2024. Design and characterization of an MMIC current mode outphasing power amplifier. Presented at: IEEE/MTT-S International Microwave Symposium Washington, DC, USA 16-21 June 2024. Proceedings of IEEE/MTT-S International Microwave Symposium. IEEE. , pp.580-583. (10.1109/IMS40175.2024.10600335)
- Piacibello, A. et al., 2024. High-gain and high-linearity MMIC GaN Doherty Power Amplifier with 3-GHz bandwidth for Ka-band satellite communications. IEEE Microwave and Wireless Technology Letters 34 (6), pp.765-768. (10.1109/LMWT.2024.3384306)
- van den Heuvel, I. et al. 2024. A baseband impedance cancellation technique for wideband multi-transistor amplifiers. IEEE Microwave and Wireless Technology Letters 34 (6), pp.777-780. (10.1109/LMWT.2024.3390594)
- Ghozati, S. U. , Baddeley, A. and Quaglia, R. 2024. Large-signal characterization and behavioral modeling of mm-wave GaN HEMT switches tailored for advanced power amplifier architectures. Presented at: 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 21-24 January 2024. Proceedings Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.21-23. (10.1109/PAWR59907.2024.10438592)
- Quaglia, R. , Cripps, S. and Powell, J. 2024. Impact of matching networks on the impedance settling time in high frequency power amplifiers. Presented at: 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 21-24 January 2024. Proceedings Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 2024. IEEE. , pp.28-30. (10.1109/PAWR59907.2024.10438584)
- Tian, M. et al. 2024. Application of the Cardiff Model for Orthogonal LMBA response prediction. Presented at: 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 21-24 January 2024. Proceedings Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 2024. IEEE. , pp.17-20. (10.1109/PAWR59907.2024.10438664)
- Tian, M. et al. 2024. An extraction method based on artificial neural network techniques for novel Cardiff model with reasonable extrapolation behavior. IEEE Microwave and Wireless Components Letters 34 (1), pp.5-8. (10.1109/LMWT.2023.3329979)
2023
- Van Den Heuvel, I. et al. 2023. An envelope model for efficient prediction of the impact of wideband signals on power amplifier performance. Presented at: 2023 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC) 08-11 November 2023. 2023 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC). IEEE. (10.1109/INMMIC57329.2023.10321784)
- Yuan, T. et al. 2023. Output signal re-injection in load modulated balanced amplifiers for RF bandwidth improvement. IEEE Microwave and Wireless Components Letters 33 (10), pp.1458-1461. (10.1109/LMWT.2023.3305812)
- Urvoy, J. et al. 2023. Experimental characterization of a dual-input OLMBA for back-off efficiency improvement. Presented at: 53rd European Microwave Conference (EuMC) Berlin, Germany 19-21 September 2023. Proceedings of 53rd European Microwave Conference. IEEE. , pp.267-270. (10.23919/EuMC58039.2023.10290592)
- Ghozati, S. U. et al. 2023. Load pull-driven behavioral modelling of microwave switches for the design of tunable reflective terminations. Presented at: EuMW 2024: European Microwave Week 2023 Berlin, Germany 18-19 September 2023. 18th European Microwave Integrated Circuits Conference (EuMIC). IEEE. , pp.97-100. (10.23919/EuMIC58042.2023.10289021)
- Baddeley, A. et al. 2023. Millimeter-wave on-wafer large signal characterization system for harmonic source/load pull and waveform measurements. Presented at: 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023 San Diego, USA 11-16 June 2023. Proceedings of the 2023 IEEE/MTT-S International Microwave Symposium (IMS). IEEE. , pp.1101-1104. (10.1109/IMS37964.2023.10187929)
- Li, W. et al., 2023. Performance modeling and shaping function extraction for dual-input load modulated power amplifiers. Presented at: 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023 San Diego, USA 11-16 June 2023. Proceedings of the 2023 IEEE/MTT-S International Microwave Symposium (IMS). IEEE. , pp.203-206. (10.1109/IMS37964.2023.10188039)
- Tian, M. et al. 2023. A novel Cardiff model coefficients extraction process based on artificial neural network. Presented at: 2023 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless ApplicationsED, MAY BE LINKED Las Vegas, NV, USA 22-25 January 2023. 2023 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications. IEEE. (10.1109/PAWR56957.2023.10046221)
2022
- Quaglia, R. and Camarchia, V. 2022. PAWR 2023 [RWW 2023]. IEEE Microwave Magazine 23 (12), pp.30-30. (10.1109/MMM.2022.3203924)
- Quaglia, R. et al. 2022. Load-modulated balanced amplifier: from first invention to recent development. IEEE Microwave Magazine 23 (12), pp.60-70. (10.1109/MMM.2022.3203940)
- Azad, E. M. et al. 2022. Cardiff model utilization for predicting the response of multiple-input power amplifiers. Presented at: Mediterrannean Microwave Symposium (MMS) Pizzo Calabro, Italy 9-13 May 2022. Proceedings of Microwave Mediterranean Symposium (MMS). IEEE. (10.1109/MMS55062.2022.9825516)
- Azad, E. M. et al. 2022. New formulation of Cardiff behavioral model including DC bias voltage dependence. IEEE Microwave and Wireless Components Letters 32 (6), pp.607-610. (10.1109/LMWC.2022.3140653)
- Quaglia, R. et al. 2022. Mitigation of load mismatch effects using an orthogonal load modulated balanced amplifier. IEEE Transactions on Microwave Theory and Techniques 70 (6), pp.3329-3341. (10.1109/TMTT.2022.3167414)
- Davies-Smith, C. et al. 2022. An enhanced active load-pull algorithm for faster convergence. Presented at: European Microwave Week 2021 London, UK 2-7 April 2022. European Microwave Week 2021 "United in Microwaves" Conference Proceedings. IEEE. , pp.354. (10.23919/EuMC50147.2022.9784250)
- Azad, E. M. et al. 2022. Load-pull data analysis of a GaN on SiC HEMT targeting multi bias Doherty design. Presented at: International Workshop on Integrated Nonlinear Microwave and Millimeterwave Circuits, INMMIC Cardiff, UK 7-8 April 2022. Proceedings of the 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. (10.1109/INMMiC54248.2022.9762106)
- Quaglia, R. et al. 2022. Effect of HEMT output characteristics on the load mismatch resilience in balanced power amplifiers. Presented at: 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 07-08 April 2022. 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC54248.2022.9762184)
- Quaglia, R. et al. 2022. K-band GaAs Doherty power amplifiers for microwave backhaul. Presented at: 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 07-08 April 2022. 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC54248.2022.9762217)
- Piacibello, A. et al., 2022. A 5-w gan doherty amplifier for ka-band satellite downlink with 4-ghz bandwidth and 17-db npr. IEEE Microwave and Wireless Components Letters 32 (8), pp.964-967. (10.1109/LMWC.2022.3160227)
- Baddeley, A. et al. 2022. Gate bias voltage dependence of Cardiff admittance model in Ka-band GaAs pHEMTs. Presented at: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Las Vegas, NV, USA 16-19 January 2022. 2022 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.8-10. (10.1109/PAWR53092.2022.9719858)
- Costanzo, F. et al., 2022. A GaN MMIC stacked doherty power amplifier for space applications. Presented at: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Las Vegas, NV, USA 16-19 January 2022. Proceedings of Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.29-31. (10.1109/PAWR53092.2022.9719789)
- Piacibello, A. et al., 2022. AM/PM characterization of wideband power amplifiers. Presented at: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Las Vegas, NV, USA 16-19 January 2022. Proceedings of IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications. IEEE. (10.1109/PAWR53092.2022.9719787)
- Guillena, E. et al., 2022. Reconfigurable DPD based on ANNs for wideband load modulated balanced amplifiers under dynamic operation from 1.8 to 2.4 GHz. IEEE Transactions on Microwave Theory and Techniques 70 (1), pp.453-465.
- Azad, E. M. et al. 2022. DC-dependent Cardiff model from modulated supply and load-pull data. Presented at: 2022 Asia-Pacific Microwave Conference (APMC) Yokohama, Japan 29 November 2022 - 02 December 2022. Proceedings of 2022 Asia-Pacific Microwave Conference (APMC). IEEE. , pp.181-183. (10.23919/APMC55665.2022.9999796)
2021
- Piacibello, A. et al., 2021. Evaluation of a stacked-FET cell for high-frequency applications (invited paper). International Journal of Numerical Modelling: Electronic Networks, Devices and Fields 34 (5) e2881. (10.1002/jnm.2881)
- Ramella, C. et al., 2021. Watt-level 21-25 GHz integrated Doherty power amplifier in GaAs technology. IEEE Microwave and Wireless Components Letters 31 (5), pp.505-508. (10.1109/LMWC.2021.3069555)
- Rubio, J. J. M. et al., 2021. 3-20 GHz GaN MMIC Power Amplifier Design Through a COUT Compensation Strategy. IEEE Microwave and Wireless Components Letters 31 (5), pp.469-472. (10.1109/LMWC.2021.3066282)
- Wang, T. et al., 2021. Machine-learning assisted optimisation of free-parameters of a dual-input power amplifier for wideband applications. Sensors 21 (8) 2831. (10.3390/s21082831)
- Piacibello, A. et al. 2021. A simple method to identify parametric oscillations in power amplifiers using harmonic balance solvers. IEEE Microwave and Wireless Components Letters 31 (3), pp.269-271. (10.1109/LMWC.2021.3049939)
- Quaglia, R. 2021. Improvement of small signal equivalent simulations for power and efficiency matching of GaN HEMTs. Electronics 10 (3) 263. (10.3390/electronics10030263)
2020
- Azad, E. M. et al. 2020. Gate bias incorporation into Cardiff behavioural modelling formulation. Presented at: IEEE/MTT-S International Microwave Symposium (IMS 2020) Los Angeles, CA, USA 4-6 August 2020. 2020 IEEE/MTT-S International Microwave Symposium (IMS). IEEE. , pp.420-423. (10.1109/IMS30576.2020.9223817)
- Collins, D. J. et al. 2020. The orthogonal LMBA: a novel RFPA architecture with broadband reconfigurability. IEEE Microwave and Wireless Components Letters 30 (9), pp.888-891. (10.1109/LMWC.2020.3010817)
- Moreno Rubio, J. et al. 2020. Design of a broadband power amplifier based on power and efficiency contours estimation. IEEE Microwave and Wireless Components Letters 30 (8), pp.772 -774. (10.1109/LMWC.2020.3005833)
- Chen, P. et al. 2020. Look-up table method for optimising coupling ratio in broadband sequential power amplifiers. IET Microwaves Antennas and Propagation 14 (13), pp.1626-1634. (10.1049/iet-map.2019.1102)
- Chaudry, K. , Quaglia, R. and Cripps, S. 2020. A load modulated balanced amplifier with linear gain response and wide high-efficiency output power back-off region. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160205)
- Chen, P. et al. 2020. Optimising linearity of envelope tracking power amplifier using baseband linearisation approach. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160347)
- Chen, P. et al. 2020. Efficiency enhancement of a broadband sequential power amplifier using envelope tracking. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160332)
- Piacibello, A. et al., 2020. GaN Doherty MMIC power amplifiers for satellite Ka-band downlink. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160047)
- Quaglia, R. 2020. A review of technologies and design techniques of millimeter-wave power amplifiers. IEEE Transactions on Microwave Theory and Techniques 68 (7), pp.2957-2983. (10.1109/TMTT.2020.2989792)
- Quaglia, R. et al. 2020. Source/load-pull characterisation of GaN on Si HEMTs with data analysis targeting Doherty design. Presented at: 2020 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) San Antonio, TX, USA 26-29 January, 2020. 2020 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.5-8. (10.1109/PAWR46754.2020.9035999)
2019
- Piacibello, A. et al., 2019. Optimisation of a Doherty power amplifier based on dual-input characterisation. Presented at: IEEE COMCAS 2019, International Conference on Microwave, Communication, Antennas & Electronic Systems Tel Aviv, Israel 4-6 November 2019. Published in: Piacibello, A. et al., 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS). IEEE(10.1109/COMCAS44984.2019.8958432)
- Alt, A. et al. 2019. Impact of the input impedance on the linearity of supply modulated GaN HEMT power amplifiers. Presented at: European Microwave Week 2019 (EuMW2019) Paris, France 29 September - 03 October 2019. 2019 49th European Microwave Conference (EuMC). IEEE. , pp.706-709. (10.23919/EuMC.2019.8910882)
- Quaglia, R. , Powell, J. and Collins, D. 2019. Load modulated balanced amplifier. In: Webster, J. G. ed. The Wiley Encyclopedia of Electrical and Electronics Engineering. Vol 3.. Wiley-Blackwell
- Bogusz, A. et al. 2019. Wideband compact planar balun for applications in outphasing and push-pull amplifiers. Electronics Letters 55 (16), pp.912-914. (10.1049/el.2018.7915)
- Syed Anera, S. M. H. et al. 2019. High-efficiency broadband PA design based on continuous Class-F mode with compression. Presented at: 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 Boston, USA 2 -7 June 2019. MTT-S International Microwave Symposium (IMS). IEEE. , pp.698-701. (10.1109/MWSYM.2019.8700767)
- Quaglia, R. et al. 2019. A 1.8-3.2 GHz Doherty Power Amplifier in quasi-MMIC Technology. IEEE Microwave and Wireless Components Letters 29 (5), pp.345-347. (10.1109/LMWC.2019.2904883)
- Alt, A. et al. 2019. Class B* - A new high efficiency RF DC/DC converter concept using second harmonic generation/injection. Presented at: WPTC 2018: IEEE MTT-S Wireless Power Transfer Conference Montreal, Quebec 3-7 June 2018. 2018 IEEE Wireless Power Transfer Conference (WPTC). IEEE(10.1109/WPT.2018.8639317)
- Collins, D. et al. 2019. Experimental characterization of a load modulated balanced amplifier with simplified input power splitter. Presented at: Asia-Pacific Microwave Conference Kyoto, Japan 6-9 Nov 2018. Proceedings of APMC. IEEE: , pp.461-463. (10.23919/APMC.2018.8617307)
- Bogusz, A. et al. 2019. Design and characterisation of an outphasing power amplifier with balun combiner. Presented at: 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond (IMC-5G) Altanta, GA, USA 15-16 August 2019. 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond (IMC-5G). IEEE(10.1109/IMC-5G47857.2019.9160351)
- Quaglia, R. and Lees, J. 2019. Simplified analysis of the effect of load variation in common Doherty power amplifier architectures. Presented at: 2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Orlando, FL, USA 20-23 Jan 2019. IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE
2018
- Alt, A. et al. 2018. Analysis of highly efficient self-synchronous class-F microwave rectifiers using waveform engineering. Presented at: 48th European Microwave Conference (EuMC) Madrid, Spain 23-27 Sep 2018. Proceedings of the 48th European Microwave Conference. Piscataway, NJ: IEEE. , pp.773-776. (10.23919/EuMC.2018.8541564)
- Alt, A. et al. 2018. Comparing FET technologies in terms of their suitability for broadband envelope tracking power amplifiers. Presented at: InMMIC Brive La Gaillarde, France 5-6 July 2018. Proceedings of 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits. IEEE. , pp.1-3. (10.1109/INMMIC.2018.8430025)
- Bogusz, A. et al. 2018. Power and efficiency continuous modes in saturated GaN HEMT devices. Presented at: Inmmic 2018 Brive-La-Gaillarde, France 5-6 July 2018. Proceedings of 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits. IEEE. , pp.8430020-8430020. (10.1109/INMMIC.2018.8430020)
- Piacibello, A. et al. 2018. A Ku-band Compact MMIC PA based on Stacked GaAs pHEMT cells. Presented at: International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC) Brive La Gaillarde, France 5-6 Jul 2018. 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC). IEEE. (10.1109/INMMIC.2018.8429989)
- Piacibello, A. et al., 2018. Dual-input driving strategies for performance enhancement of a doherty power amplifier. Presented at: 2018 IEEE MTT-S International Wireless Symposium (IWS) Chengdu, China 6-10 May 2018. 2018 IEEE MTT-S International Wireless Symposium (IWS). IEEE. (10.1109/IEEE-IWS.2018.8400845)
- Quaglia, R. , Camarchia, V. and Pirola, M. 2018. K-band combined GaAs monolithic Doherty power amplifier. Presented at: 2018 IEEE MTT-S International Wireless Symposium (IWS) Chengdu, China 6-10 May 2018. 2018 IEEE MTT-S International Wireless Symposium (IWS2018). IEEE. (10.1109/IEEE-IWS.2018.8400882)
- Powell, J. R. et al., 2018. A power reconfigurable high-efficiency $X$ -band power amplifier MMIC using the load modulated balanced amplifier technique. IEEE Microwave and Wireless Components Letters 28 (6), pp.527-529. (10.1109/LMWC.2018.2824560)
- Quaglia, R. et al. 2018. Analysis and characterization of a load modulated balanced amplifier for base-station applications. Presented at: 2018 11th German Microwave Conference (GeMiC) Freiburg, Germany 12-14 March 2018. 2018 11th German Microwave Conference (GeMiC). IEEE. , pp.1-4. (10.23919/GEMIC.2018.8335013)
- Moreno Rubio, J. J. et al. 2018. Design of a 87% fractional bandwidth Doherty Power Amplifier supported by a simplified bandwidth estimation method. IEEE Transactions on Microwave Theory and Techniques 66 (3), pp.1319-1327. (10.1109/TMTT.2017.2767586)
- Quaglia, R. and Cripps, S. 2018. A load modulated balanced amplifier for telecom applications. IEEE Transactions on Microwave Theory and Techniques 66 (3), pp.1328-1338. (10.1109/TMTT.2017.2766066)
2017
- Ramella, C. et al., 2017. High efficiency power amplifiers for modern mobile communications: The load-modulation approach. Electronics 6 (4) 96. (10.3390/electronics6040096)
- Quaglia, R. , Bell, J. J. and Cripps, S. 2017. New general formulation and experimental verification of harmonic clipping contours in high-frequency power devices. IEEE Transactions on Microwave Theory and Techniques 65 (10), pp.3903-3909. (10.1109/TMTT.2017.2687900)
- Quaglia, R. et al. 2017. Design and characterization of a 1.7?2.7 GHz quasi-MMIC Doherty power amplifier. Presented at: 2017 IEEE MTT-S International Microwave Symposium (IMS) Honololu, HI, USA 4-9 June 2017. 2017 IEEE MTT-S International Microwave Symposium (IMS). IEEE. , pp.771-773. (10.1109/MWSYM.2017.8058689)
- Camarchia, V. et al., 2017. A design strategy for AM/PM compensation in GaN Doherty power amplifiers. IEEE Access 5 , pp.22244-22251. (10.1109/ACCESS.2017.2759164)
- Camarchia, V. et al., 2017. Power amplifier MMICs for 15 GHz microwave links in 0.25 mu m GaN technology. Presented at: 2017 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop (INMMiC) Graz, Austria 20-21 April 2017. 2017 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop (INMMiC). IEEE. (10.1109/INMMIC.2017.7927311)
- Quaglia, R. et al. 2017. A 4W Doherty power amplifier in GaN MMIC technology for 15GHz applications. IEEE Microwave and Wireless Components Letters 27 (4), pp.365-367. (10.1109/LMWC.2017.2678440)
- Quaglia, R. , Shepphard, D. J. and Cripps, S. 2017. A reappraisal of optimum output matching conditions in microwave power transistors. IEEE Transactions on Microwave Theory and Techniques 65 (3), pp.838-845. (10.1109/TMTT.2016.2627557)
- Quaglia, R. and Cripps, S. C. 2017. Harmonic clipping contours: numerical computation and extension to higher harmonics. Presented at: European Microwave Conference London, UK 3-7 Oct. 2016. Microwave Conference (EuMC), 2016 46th European. IEEE. , pp.405-408. (10.1109/EuMC.2016.7824365)
2016
- Camarchia, V. et al., 2016. Characterization of a high power GaN device for class E PA design with non-sinusoidal stimulus. Presented at: 2016 11th European Microwave Integrated Circuits Conference (EuMIC) London, UK 3-4 October 2016. Microwave Integrated Circuits Conference (EuMIC), 2016 11th European. IEEE. , pp.53. (10.1109/EuMIC.2016.7777487)
- Iqbal, M. et al., 2016. A miniaturized wilkinson power divider for ultra wide-band operation. Presented at: 2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON)2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON). IEEE(10.1109/MIKON.2016.7492081)
- Ramella, C. et al., 2016. Characterization-oriented design of a compact GaAs MMIC 3-stacked power cell. Presented at: Microwave, Radar and Wireless Communications (MIKON), 2016 21st International Conference on Krakow, Poland 9-11 May 2016. Microwave, Radar andWireless Communications (MIKON), 2016 21st International Conference on. IEEE(10.1109/MIKON.2016.7491950)
- Moreno Rubio, J. et al. 2016. A 0.6-3.8GHz GaN Power Amplifier designed through a simple strategy. IEEE Microwave and Wireless Components Letters 26 (6), pp.446-448. http://. (10.1109/LMWC.2016.2549263)
- Giofrè, R. et al., 2016. A comprehensive comparison between GaN MMIC Doherty and combined class-AB power amplifiers for microwave radio links. International Journal of Microwave and Wireless Technologies 8 (4-5), pp.673-681. (10.1017/S175907871600012X)
- Quaglia, R. et al. 2016. GaN monolithic power amplifiers for microwave backhaul applications. Electronics 5 (2) 25. (10.3390/electronics5020025)
2015
- Camarchia, V. et al., 2015. The Doherty power amplifier: review of recent solutions and trends. IEEE Transactions on Microwave Theory and Techniques 63 (2), pp.559-571. (10.1109/TMTT.2014.2387061)
- Fersch, T. et al., 2015. Stacked GaAs pHEMTs: Design of a K-band power amplifier and experimental characterization of mismatch effects. Presented at: 2015 IEEE MTT-S International Microwave Symposium (IMS) Phoenix, AZ 17-22 May 2015. 2015 IEEE MTT-S International Microwave Symposium (IMS). IEEE(10.1109/MWSYM.2015.7166762)
- Giofre, R. et al., 2015. GaN-MMIC Doherty power amplifier with integrated reconfigurable input network for microwave backhaul applications. Presented at: 2015 IEEE MTT-S International Microwave Symposium (IMS) Phoenix, AZ 17-22 May 2015. 2015 IEEE MTT-S International Microwave Symposium (IMS). IEEE(10.1109/MWSYM.2015.7166763)
2014
- Chiolerio, A. et al., 2014. Hybrid Ag-based inks for nanocomposite inkjet printed lines: RF properties. Journal of Alloys and Compounds 615 (Supp 1), pp.S501-S504. (10.1016/j.jallcom.2013.12.174)
- Quaglia, R. et al. 2014. Linear GaN MMIC combined power amplifiers for 7-GHz microwave backhaul. IEEE Transactions on Microwave Theory and Techniques 62 (11), pp.2700-2710. (10.1109/TMTT.2014.2359856)
- Quaglia, R. et al. 2014. K-Band GaAs MMIC Doherty power amplifier for microwave radio with optimized driver. IEEE Transactions on Microwave Theory and Techniques 62 (11), pp.2518-2525. (10.1109/TMTT.2014.2360395)
- Quaglia, R. et al. 2014. Experimental investigation of bias current and load modulation effects in phase distortion of GaN HEMTs. Electronics letters 50 (10), pp.773-775. (10.1049/el.2014.0983)
- Camarchia, V. et al., 2014. Demonstration of inkjet-printed silver nanoparticle microstrip lines on alumina for RF power modules. Organic Electronics 15 (1), pp.91-98. (10.1016/j.orgel.2013.10.018)
- Piazzon, L. et al., 2014. Effect of load modulation on phase distortion in Doherty power amplifiers. IEEE Microwave and Wireless Components Letters 24 (7), pp.505-507. (10.1109/LMWC.2014.2316507)
- Pirola, M. et al., 2014. 13-bit GaAs serial-to-parallel converter with compact layout for core-chip applications. Microelectronics Journal 45 (7), pp.864-869. (10.1016/j.mejo.2014.04.036)
- Quaglia, R. , Camarchia, V. and Pirola, M. 2014. Dual-band GaN MMIC power amplifier for microwave backhaul applications. IEEE Microwave and Wireless Components Letters 24 (6), pp.409-411. (10.1109/LMWC.2014.2313587)
2013
- Camarchia, V. et al., 2013. High-Efficiency 7 GHz Doherty GaN MMIC Power Amplifiers for mackhaul radio links. IEEE Transactions of Electron Devices 60 (10), pp.3592-3595. (10.1109/TED.2013.2274669)
- Camarchia, V. et al., 2013. Bandwidth extension of GaN Doherty power amplifier: Effect on power, efficiency and linearity. Presented at: 2013 IEEE International Wireless Symposium (IWS) Beijing, China 14-18 April 2013. 2013 IEEE International Wireless Symposium (IWS). IEEE. , pp.1-4. (10.1109/IEEE-IWS.2013.6616789)
- Quaglia, R. , Pirola, M. and Ramella, C. 2013. Offset lines in Doherty Power Amplifiers: analytical demonstration and design. IEEE Microwave and Wireless Components Letters 23 (2), pp.93-95. (10.1109/LMWC.2013.2241535)
- Camarchia, V. et al., 2013. 7 GHz MMIC GaN Doherty Power Amplifier with 47% efficiency at 7 dB output back-off. IEEE Microwave and Wireless Components Letters 23 (1), pp.34-36. (10.1109/LMWC.2012.2234090)
2012
- Fang, J. et al., 2012. 3.5 GHz WiMAX GaN doherty power amplifier with second harmonic tuning. Microwave and Optical Technology Letters 54 (11), pp.2601-2605. (10.1002/mop.27132)
- Camarchia, V. et al., 2012. X-band wideband 5W GaN MMIC power amplifier with large-signal gain equalization. Presented at: 2012 Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits Dublin, Ireland 3-4 September 2012. 2012 Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits. IEEE. , pp.1-3. (10.1109/INMMIC.2012.6331935)
- Moreno Rubio, J. et al. 2012. 3–3.6-GHz wideband GaN Doherty Power Amplifier exploiting output compensation stages. IEEE Transactions on Microwave Theory and Techniques 60 (8), pp.2543-2548. (10.1109/TMTT.2012.2201745)
- Moreno Rubio, J. et al. 2012. Development of single-stage and doherty GaN-based hybrid RF power amplifiers for quasi-constant envelope and high peak to average power ratio wireless standards. Microwave and Optical Technology Letters 54 (1), pp.206-210. (10.1002/mop.26459)
2011
- Moreno Rubio, J. et al. 2011. A 22W 65% efficiency GaN Doherty Power Amplifier at 3.5 GHz for WiMAX applications. Presented at: 2011 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Vienna, Austria 18-19 April 2011. Integrated Nonlinear Microwave and Millimeterwave Circuits, INMMIC, International Workshop on. IEEE. , pp.1. (10.1109/INMMIC.2011.5773332)
2009
- Quaglia, R. et al. 2009. Behavioral modeling of GaN-based power amplifiers: impact of electrothermal feedback on the model accuracy and identification. Microwave and Optical Technology Letters 51 (11), pp.2789-2792. (10.1002/mop.24732)
Articles
- Camarchia, V. and Quaglia, R. 2026. Special issue on power amplifiers for communications and satellite applications [Guest Editorial]. IEEE Transactions on Microwave Theory and Techniques 74 , pp.6725-6726. (10.1109/tmtt.2026.3715076)
- Urvoy, J. et al. 2026. Orthogonal load-modulated balanced amplifier for back-off efficiency enhancement and agile frequency configuration. IEEE Transactions on Microwave Theory and Techniques 74 (2), pp.1174-1186. (10.1109/TMTT.2025.3604180)
- Powell, A. et al. 2025. Efficient output power configuration in a K-band power amplifier using a split-gate layout. International Journal of Microwave and Wireless Technologies 17 (19), pp.1680-1689. (10.1017/S1759078725101682)
- Al-Rawachy, A. et al. 2025. Automated Cardiff model complexity identification and parameters extraction from measured tailored A-pull data. IEEE Journal of Microwaves 5 (5), pp.1150-1161. (10.1109/JMW.2025.3600995)
- Baddeley, A. , Quaglia, R. and Tasker, P. J. 2025. Calibration error reduction in millimeter-wave load-pull systems measuring highly-reflective loads. IEEE Transactions on Microwave Theory and Techniques 73 (6), pp.3552-3564. (10.1109/TMTT.2024.3495544)
- Tian, M. et al. 2025. Artificial neural network nonlinear transistor behavioral models: Structure and parameter determination process based on the Cardiff Model. IEEE Transactions on Microwave Theory and Techniques 73 (2), pp.745-759. (10.1109/TMTT.2024.3434959)
- Ghozati, S. U. and Quaglia, R. 2025. Ka-band single-pole double-throw switch in GaN MMIC technology. International Journal of Microwave and Wireless Technologies (10.1017/S1759078725000108)
- Piacibello, A. et al., 2025. Design and extensive NPR characterization of a highly-linear SatCom GaN MMIC Doherty PA. IEEE Transactions on Microwave Theory and Techniques 73 (1), pp.156-166. (10.1109/TMTT.2024.3474092)
- Rubio, J. J. M. , Azad, E. M. and Quaglia, R. 2024. A differential combiner for quasi-complete cancellation of output capacitance in mm-wave power amplifiers with high- Q devices. IEEE Transactions on Microwave Theory and Techniques 72 (9), pp.5309-5318. (10.1109/TMTT.2024.3365932)
- Piacibello, A. et al., 2024. High-gain and high-linearity MMIC GaN Doherty Power Amplifier with 3-GHz bandwidth for Ka-band satellite communications. IEEE Microwave and Wireless Technology Letters 34 (6), pp.765-768. (10.1109/LMWT.2024.3384306)
- van den Heuvel, I. et al. 2024. A baseband impedance cancellation technique for wideband multi-transistor amplifiers. IEEE Microwave and Wireless Technology Letters 34 (6), pp.777-780. (10.1109/LMWT.2024.3390594)
- Tian, M. et al. 2024. An extraction method based on artificial neural network techniques for novel Cardiff model with reasonable extrapolation behavior. IEEE Microwave and Wireless Components Letters 34 (1), pp.5-8. (10.1109/LMWT.2023.3329979)
- Yuan, T. et al. 2023. Output signal re-injection in load modulated balanced amplifiers for RF bandwidth improvement. IEEE Microwave and Wireless Components Letters 33 (10), pp.1458-1461. (10.1109/LMWT.2023.3305812)
- Quaglia, R. and Camarchia, V. 2022. PAWR 2023 [RWW 2023]. IEEE Microwave Magazine 23 (12), pp.30-30. (10.1109/MMM.2022.3203924)
- Quaglia, R. et al. 2022. Load-modulated balanced amplifier: from first invention to recent development. IEEE Microwave Magazine 23 (12), pp.60-70. (10.1109/MMM.2022.3203940)
- Azad, E. M. et al. 2022. New formulation of Cardiff behavioral model including DC bias voltage dependence. IEEE Microwave and Wireless Components Letters 32 (6), pp.607-610. (10.1109/LMWC.2022.3140653)
- Quaglia, R. et al. 2022. Mitigation of load mismatch effects using an orthogonal load modulated balanced amplifier. IEEE Transactions on Microwave Theory and Techniques 70 (6), pp.3329-3341. (10.1109/TMTT.2022.3167414)
- Piacibello, A. et al., 2022. A 5-w gan doherty amplifier for ka-band satellite downlink with 4-ghz bandwidth and 17-db npr. IEEE Microwave and Wireless Components Letters 32 (8), pp.964-967. (10.1109/LMWC.2022.3160227)
- Guillena, E. et al., 2022. Reconfigurable DPD based on ANNs for wideband load modulated balanced amplifiers under dynamic operation from 1.8 to 2.4 GHz. IEEE Transactions on Microwave Theory and Techniques 70 (1), pp.453-465.
- Piacibello, A. et al., 2021. Evaluation of a stacked-FET cell for high-frequency applications (invited paper). International Journal of Numerical Modelling: Electronic Networks, Devices and Fields 34 (5) e2881. (10.1002/jnm.2881)
- Ramella, C. et al., 2021. Watt-level 21-25 GHz integrated Doherty power amplifier in GaAs technology. IEEE Microwave and Wireless Components Letters 31 (5), pp.505-508. (10.1109/LMWC.2021.3069555)
- Rubio, J. J. M. et al., 2021. 3-20 GHz GaN MMIC Power Amplifier Design Through a COUT Compensation Strategy. IEEE Microwave and Wireless Components Letters 31 (5), pp.469-472. (10.1109/LMWC.2021.3066282)
- Wang, T. et al., 2021. Machine-learning assisted optimisation of free-parameters of a dual-input power amplifier for wideband applications. Sensors 21 (8) 2831. (10.3390/s21082831)
- Piacibello, A. et al. 2021. A simple method to identify parametric oscillations in power amplifiers using harmonic balance solvers. IEEE Microwave and Wireless Components Letters 31 (3), pp.269-271. (10.1109/LMWC.2021.3049939)
- Quaglia, R. 2021. Improvement of small signal equivalent simulations for power and efficiency matching of GaN HEMTs. Electronics 10 (3) 263. (10.3390/electronics10030263)
- Collins, D. J. et al. 2020. The orthogonal LMBA: a novel RFPA architecture with broadband reconfigurability. IEEE Microwave and Wireless Components Letters 30 (9), pp.888-891. (10.1109/LMWC.2020.3010817)
- Moreno Rubio, J. et al. 2020. Design of a broadband power amplifier based on power and efficiency contours estimation. IEEE Microwave and Wireless Components Letters 30 (8), pp.772 -774. (10.1109/LMWC.2020.3005833)
- Chen, P. et al. 2020. Look-up table method for optimising coupling ratio in broadband sequential power amplifiers. IET Microwaves Antennas and Propagation 14 (13), pp.1626-1634. (10.1049/iet-map.2019.1102)
- Quaglia, R. 2020. A review of technologies and design techniques of millimeter-wave power amplifiers. IEEE Transactions on Microwave Theory and Techniques 68 (7), pp.2957-2983. (10.1109/TMTT.2020.2989792)
- Bogusz, A. et al. 2019. Wideband compact planar balun for applications in outphasing and push-pull amplifiers. Electronics Letters 55 (16), pp.912-914. (10.1049/el.2018.7915)
- Quaglia, R. et al. 2019. A 1.8-3.2 GHz Doherty Power Amplifier in quasi-MMIC Technology. IEEE Microwave and Wireless Components Letters 29 (5), pp.345-347. (10.1109/LMWC.2019.2904883)
- Powell, J. R. et al., 2018. A power reconfigurable high-efficiency $X$ -band power amplifier MMIC using the load modulated balanced amplifier technique. IEEE Microwave and Wireless Components Letters 28 (6), pp.527-529. (10.1109/LMWC.2018.2824560)
- Moreno Rubio, J. J. et al. 2018. Design of a 87% fractional bandwidth Doherty Power Amplifier supported by a simplified bandwidth estimation method. IEEE Transactions on Microwave Theory and Techniques 66 (3), pp.1319-1327. (10.1109/TMTT.2017.2767586)
- Quaglia, R. and Cripps, S. 2018. A load modulated balanced amplifier for telecom applications. IEEE Transactions on Microwave Theory and Techniques 66 (3), pp.1328-1338. (10.1109/TMTT.2017.2766066)
- Ramella, C. et al., 2017. High efficiency power amplifiers for modern mobile communications: The load-modulation approach. Electronics 6 (4) 96. (10.3390/electronics6040096)
- Quaglia, R. , Bell, J. J. and Cripps, S. 2017. New general formulation and experimental verification of harmonic clipping contours in high-frequency power devices. IEEE Transactions on Microwave Theory and Techniques 65 (10), pp.3903-3909. (10.1109/TMTT.2017.2687900)
- Camarchia, V. et al., 2017. A design strategy for AM/PM compensation in GaN Doherty power amplifiers. IEEE Access 5 , pp.22244-22251. (10.1109/ACCESS.2017.2759164)
- Quaglia, R. et al. 2017. A 4W Doherty power amplifier in GaN MMIC technology for 15GHz applications. IEEE Microwave and Wireless Components Letters 27 (4), pp.365-367. (10.1109/LMWC.2017.2678440)
- Quaglia, R. , Shepphard, D. J. and Cripps, S. 2017. A reappraisal of optimum output matching conditions in microwave power transistors. IEEE Transactions on Microwave Theory and Techniques 65 (3), pp.838-845. (10.1109/TMTT.2016.2627557)
- Moreno Rubio, J. et al. 2016. A 0.6-3.8GHz GaN Power Amplifier designed through a simple strategy. IEEE Microwave and Wireless Components Letters 26 (6), pp.446-448. http://. (10.1109/LMWC.2016.2549263)
- Giofrè, R. et al., 2016. A comprehensive comparison between GaN MMIC Doherty and combined class-AB power amplifiers for microwave radio links. International Journal of Microwave and Wireless Technologies 8 (4-5), pp.673-681. (10.1017/S175907871600012X)
- Quaglia, R. et al. 2016. GaN monolithic power amplifiers for microwave backhaul applications. Electronics 5 (2) 25. (10.3390/electronics5020025)
- Camarchia, V. et al., 2015. The Doherty power amplifier: review of recent solutions and trends. IEEE Transactions on Microwave Theory and Techniques 63 (2), pp.559-571. (10.1109/TMTT.2014.2387061)
- Chiolerio, A. et al., 2014. Hybrid Ag-based inks for nanocomposite inkjet printed lines: RF properties. Journal of Alloys and Compounds 615 (Supp 1), pp.S501-S504. (10.1016/j.jallcom.2013.12.174)
- Quaglia, R. et al. 2014. Linear GaN MMIC combined power amplifiers for 7-GHz microwave backhaul. IEEE Transactions on Microwave Theory and Techniques 62 (11), pp.2700-2710. (10.1109/TMTT.2014.2359856)
- Quaglia, R. et al. 2014. K-Band GaAs MMIC Doherty power amplifier for microwave radio with optimized driver. IEEE Transactions on Microwave Theory and Techniques 62 (11), pp.2518-2525. (10.1109/TMTT.2014.2360395)
- Quaglia, R. et al. 2014. Experimental investigation of bias current and load modulation effects in phase distortion of GaN HEMTs. Electronics letters 50 (10), pp.773-775. (10.1049/el.2014.0983)
- Camarchia, V. et al., 2014. Demonstration of inkjet-printed silver nanoparticle microstrip lines on alumina for RF power modules. Organic Electronics 15 (1), pp.91-98. (10.1016/j.orgel.2013.10.018)
- Piazzon, L. et al., 2014. Effect of load modulation on phase distortion in Doherty power amplifiers. IEEE Microwave and Wireless Components Letters 24 (7), pp.505-507. (10.1109/LMWC.2014.2316507)
- Pirola, M. et al., 2014. 13-bit GaAs serial-to-parallel converter with compact layout for core-chip applications. Microelectronics Journal 45 (7), pp.864-869. (10.1016/j.mejo.2014.04.036)
- Quaglia, R. , Camarchia, V. and Pirola, M. 2014. Dual-band GaN MMIC power amplifier for microwave backhaul applications. IEEE Microwave and Wireless Components Letters 24 (6), pp.409-411. (10.1109/LMWC.2014.2313587)
- Camarchia, V. et al., 2013. High-Efficiency 7 GHz Doherty GaN MMIC Power Amplifiers for mackhaul radio links. IEEE Transactions of Electron Devices 60 (10), pp.3592-3595. (10.1109/TED.2013.2274669)
- Quaglia, R. , Pirola, M. and Ramella, C. 2013. Offset lines in Doherty Power Amplifiers: analytical demonstration and design. IEEE Microwave and Wireless Components Letters 23 (2), pp.93-95. (10.1109/LMWC.2013.2241535)
- Camarchia, V. et al., 2013. 7 GHz MMIC GaN Doherty Power Amplifier with 47% efficiency at 7 dB output back-off. IEEE Microwave and Wireless Components Letters 23 (1), pp.34-36. (10.1109/LMWC.2012.2234090)
- Fang, J. et al., 2012. 3.5 GHz WiMAX GaN doherty power amplifier with second harmonic tuning. Microwave and Optical Technology Letters 54 (11), pp.2601-2605. (10.1002/mop.27132)
- Moreno Rubio, J. et al. 2012. 3–3.6-GHz wideband GaN Doherty Power Amplifier exploiting output compensation stages. IEEE Transactions on Microwave Theory and Techniques 60 (8), pp.2543-2548. (10.1109/TMTT.2012.2201745)
- Moreno Rubio, J. et al. 2012. Development of single-stage and doherty GaN-based hybrid RF power amplifiers for quasi-constant envelope and high peak to average power ratio wireless standards. Microwave and Optical Technology Letters 54 (1), pp.206-210. (10.1002/mop.26459)
- Quaglia, R. et al. 2009. Behavioral modeling of GaN-based power amplifiers: impact of electrothermal feedback on the model accuracy and identification. Microwave and Optical Technology Letters 51 (11), pp.2789-2792. (10.1002/mop.24732)
Book sections
- Quaglia, R. , Powell, J. and Collins, D. 2019. Load modulated balanced amplifier. In: Webster, J. G. ed. The Wiley Encyclopedia of Electrical and Electronics Engineering. Vol 3.. Wiley-Blackwell
Conferences
- Urvoy, J. et al. 2026. Dual input characterization of an asymmetric orthogonal load modulated balanced amplifier for enhanced linear performance. Presented at: 2026 IEEE MTT-S Radio Frequency Technology and Techniques Symposium (IMS RFTT) Boston, MA 07 - 12 June 2026. 2026 IEEE MTT-S Radio Frequency Technology and Techniques Symposium (IMS RFTT). IEEE. , pp.589-592. (10.1109/imsrftt43070.2026.11602430)
- Quaglia, R. 2026. Auxiliary matching network design in sequential LMBAs: a geometrical explanation. Presented at: 2026 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Hollywood, CA, USA 18-21 January 2026. 2026 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE(10.1109/PAWR69496.2026.11408485)
- Collier, A. et al. 2025. Large-signal performance comparison of ion implant and mesa etch isolated AlGaN/GaN HEMT switches on silicon. Presented at: European Microwave Integrated Circuits Conference Utrecht, The Netherlands 23 September 2025. Proceedings of the 20th European Microwave Integrated Circuits Conference. IEEE. , pp.230-233. (10.23919/EuMIC65284.2025.11234588)
- Ghozati, S. U. et al. 2025. Cardiff behavioral model of a Ka-Band SPDT switch trained on structured minimization of load-pull characterization data. Presented at: 2025 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Torino, Italy 10-11 April 2025. Proceedings of the International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. , pp.1-4. (10.1109/INMMIC64198.2025.10975719)
- Urvoy, J. , Quaglia, R. and Cripps, S. C. 2025. Design and simulation of a Doherty-mode OLMBA for enhanced back-off efficiency over an octave bandwidth. Presented at: 2025 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Torino, Italy 10-11 April 2025. Proceedings of the International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. , pp.1-4. (10.1109/INMMIC64198.2025.10975674)
- Van Den Heuvel, I. et al. 2025. Improved iterative envelope simulation for the efficient prediction of the impact of wideband modulated signals on power amplifier performance. Presented at: 2025 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Torino, Italy 10-11 April 2025. Proceedings of the International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. , pp.1-4. (10.1109/INMMIC64198.2025.10975660)
- Azad, E. M. et al. 2024. Design and experimental characterization of an asymmetric GaN MMIC Doherty power amplifier for Ka-Band transmitters. Presented at: 19th European Microwave Integrated Circuits Conference (EuMIC) Paris, France 23-24 September 2024. 2024 19th European Microwave Integrated Circuits Conference (EuMIC). IEEE. , pp.158-161. (10.23919/eumic61603.2024.10732357)
- Powell, A. G. et al. 2024. Efficient output power configuration in a K-Band power amplifier using a split-gate layout. Presented at: 19th European Microwave Integrated Circuits Conference (EuMIC) Paris, France 23-24 September 2024. 2024 19th European Microwave Integrated Circuits Conference (EuMIC). IEEE. , pp.275-278. (10.23919/eumic61603.2024.10732591)
- Bogusz, A. et al. 2024. Design and characterization of an MMIC current mode outphasing power amplifier. Presented at: IEEE/MTT-S International Microwave Symposium Washington, DC, USA 16-21 June 2024. Proceedings of IEEE/MTT-S International Microwave Symposium. IEEE. , pp.580-583. (10.1109/IMS40175.2024.10600335)
- Ghozati, S. U. , Baddeley, A. and Quaglia, R. 2024. Large-signal characterization and behavioral modeling of mm-wave GaN HEMT switches tailored for advanced power amplifier architectures. Presented at: 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 21-24 January 2024. Proceedings Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.21-23. (10.1109/PAWR59907.2024.10438592)
- Quaglia, R. , Cripps, S. and Powell, J. 2024. Impact of matching networks on the impedance settling time in high frequency power amplifiers. Presented at: 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 21-24 January 2024. Proceedings Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 2024. IEEE. , pp.28-30. (10.1109/PAWR59907.2024.10438584)
- Tian, M. et al. 2024. Application of the Cardiff Model for Orthogonal LMBA response prediction. Presented at: 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 21-24 January 2024. Proceedings Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) 2024. IEEE. , pp.17-20. (10.1109/PAWR59907.2024.10438664)
- Van Den Heuvel, I. et al. 2023. An envelope model for efficient prediction of the impact of wideband signals on power amplifier performance. Presented at: 2023 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC) 08-11 November 2023. 2023 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC). IEEE. (10.1109/INMMIC57329.2023.10321784)
- Urvoy, J. et al. 2023. Experimental characterization of a dual-input OLMBA for back-off efficiency improvement. Presented at: 53rd European Microwave Conference (EuMC) Berlin, Germany 19-21 September 2023. Proceedings of 53rd European Microwave Conference. IEEE. , pp.267-270. (10.23919/EuMC58039.2023.10290592)
- Ghozati, S. U. et al. 2023. Load pull-driven behavioral modelling of microwave switches for the design of tunable reflective terminations. Presented at: EuMW 2024: European Microwave Week 2023 Berlin, Germany 18-19 September 2023. 18th European Microwave Integrated Circuits Conference (EuMIC). IEEE. , pp.97-100. (10.23919/EuMIC58042.2023.10289021)
- Baddeley, A. et al. 2023. Millimeter-wave on-wafer large signal characterization system for harmonic source/load pull and waveform measurements. Presented at: 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023 San Diego, USA 11-16 June 2023. Proceedings of the 2023 IEEE/MTT-S International Microwave Symposium (IMS). IEEE. , pp.1101-1104. (10.1109/IMS37964.2023.10187929)
- Li, W. et al., 2023. Performance modeling and shaping function extraction for dual-input load modulated power amplifiers. Presented at: 2023 IEEE/MTT-S International Microwave Symposium - IMS 2023 San Diego, USA 11-16 June 2023. Proceedings of the 2023 IEEE/MTT-S International Microwave Symposium (IMS). IEEE. , pp.203-206. (10.1109/IMS37964.2023.10188039)
- Tian, M. et al. 2023. A novel Cardiff model coefficients extraction process based on artificial neural network. Presented at: 2023 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless ApplicationsED, MAY BE LINKED Las Vegas, NV, USA 22-25 January 2023. 2023 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications. IEEE. (10.1109/PAWR56957.2023.10046221)
- Azad, E. M. et al. 2022. Cardiff model utilization for predicting the response of multiple-input power amplifiers. Presented at: Mediterrannean Microwave Symposium (MMS) Pizzo Calabro, Italy 9-13 May 2022. Proceedings of Microwave Mediterranean Symposium (MMS). IEEE. (10.1109/MMS55062.2022.9825516)
- Davies-Smith, C. et al. 2022. An enhanced active load-pull algorithm for faster convergence. Presented at: European Microwave Week 2021 London, UK 2-7 April 2022. European Microwave Week 2021 "United in Microwaves" Conference Proceedings. IEEE. , pp.354. (10.23919/EuMC50147.2022.9784250)
- Azad, E. M. et al. 2022. Load-pull data analysis of a GaN on SiC HEMT targeting multi bias Doherty design. Presented at: International Workshop on Integrated Nonlinear Microwave and Millimeterwave Circuits, INMMIC Cardiff, UK 7-8 April 2022. Proceedings of the 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits. IEEE. (10.1109/INMMiC54248.2022.9762106)
- Quaglia, R. et al. 2022. Effect of HEMT output characteristics on the load mismatch resilience in balanced power amplifiers. Presented at: 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 07-08 April 2022. 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC54248.2022.9762184)
- Quaglia, R. et al. 2022. K-band GaAs Doherty power amplifiers for microwave backhaul. Presented at: 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 07-08 April 2022. 2022 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC54248.2022.9762217)
- Baddeley, A. et al. 2022. Gate bias voltage dependence of Cardiff admittance model in Ka-band GaAs pHEMTs. Presented at: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Las Vegas, NV, USA 16-19 January 2022. 2022 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.8-10. (10.1109/PAWR53092.2022.9719858)
- Costanzo, F. et al., 2022. A GaN MMIC stacked doherty power amplifier for space applications. Presented at: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Las Vegas, NV, USA 16-19 January 2022. Proceedings of Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.29-31. (10.1109/PAWR53092.2022.9719789)
- Piacibello, A. et al., 2022. AM/PM characterization of wideband power amplifiers. Presented at: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Las Vegas, NV, USA 16-19 January 2022. Proceedings of IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications. IEEE. (10.1109/PAWR53092.2022.9719787)
- Azad, E. M. et al. 2022. DC-dependent Cardiff model from modulated supply and load-pull data. Presented at: 2022 Asia-Pacific Microwave Conference (APMC) Yokohama, Japan 29 November 2022 - 02 December 2022. Proceedings of 2022 Asia-Pacific Microwave Conference (APMC). IEEE. , pp.181-183. (10.23919/APMC55665.2022.9999796)
- Azad, E. M. et al. 2020. Gate bias incorporation into Cardiff behavioural modelling formulation. Presented at: IEEE/MTT-S International Microwave Symposium (IMS 2020) Los Angeles, CA, USA 4-6 August 2020. 2020 IEEE/MTT-S International Microwave Symposium (IMS). IEEE. , pp.420-423. (10.1109/IMS30576.2020.9223817)
- Chaudry, K. , Quaglia, R. and Cripps, S. 2020. A load modulated balanced amplifier with linear gain response and wide high-efficiency output power back-off region. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160205)
- Chen, P. et al. 2020. Optimising linearity of envelope tracking power amplifier using baseband linearisation approach. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160347)
- Chen, P. et al. 2020. Efficiency enhancement of a broadband sequential power amplifier using envelope tracking. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160332)
- Piacibello, A. et al., 2020. GaN Doherty MMIC power amplifiers for satellite Ka-band downlink. Presented at: 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Cardiff, Wales 16-17 July 2020. 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC). IEEE. , pp.1-3. (10.1109/INMMiC46721.2020.9160047)
- Quaglia, R. et al. 2020. Source/load-pull characterisation of GaN on Si HEMTs with data analysis targeting Doherty design. Presented at: 2020 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) San Antonio, TX, USA 26-29 January, 2020. 2020 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE. , pp.5-8. (10.1109/PAWR46754.2020.9035999)
- Piacibello, A. et al., 2019. Optimisation of a Doherty power amplifier based on dual-input characterisation. Presented at: IEEE COMCAS 2019, International Conference on Microwave, Communication, Antennas & Electronic Systems Tel Aviv, Israel 4-6 November 2019. Published in: Piacibello, A. et al., 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS). IEEE(10.1109/COMCAS44984.2019.8958432)
- Alt, A. et al. 2019. Impact of the input impedance on the linearity of supply modulated GaN HEMT power amplifiers. Presented at: European Microwave Week 2019 (EuMW2019) Paris, France 29 September - 03 October 2019. 2019 49th European Microwave Conference (EuMC). IEEE. , pp.706-709. (10.23919/EuMC.2019.8910882)
- Syed Anera, S. M. H. et al. 2019. High-efficiency broadband PA design based on continuous Class-F mode with compression. Presented at: 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 Boston, USA 2 -7 June 2019. MTT-S International Microwave Symposium (IMS). IEEE. , pp.698-701. (10.1109/MWSYM.2019.8700767)
- Alt, A. et al. 2019. Class B* - A new high efficiency RF DC/DC converter concept using second harmonic generation/injection. Presented at: WPTC 2018: IEEE MTT-S Wireless Power Transfer Conference Montreal, Quebec 3-7 June 2018. 2018 IEEE Wireless Power Transfer Conference (WPTC). IEEE(10.1109/WPT.2018.8639317)
- Collins, D. et al. 2019. Experimental characterization of a load modulated balanced amplifier with simplified input power splitter. Presented at: Asia-Pacific Microwave Conference Kyoto, Japan 6-9 Nov 2018. Proceedings of APMC. IEEE: , pp.461-463. (10.23919/APMC.2018.8617307)
- Bogusz, A. et al. 2019. Design and characterisation of an outphasing power amplifier with balun combiner. Presented at: 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond (IMC-5G) Altanta, GA, USA 15-16 August 2019. 2019 IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond (IMC-5G). IEEE(10.1109/IMC-5G47857.2019.9160351)
- Quaglia, R. and Lees, J. 2019. Simplified analysis of the effect of load variation in common Doherty power amplifier architectures. Presented at: 2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) Orlando, FL, USA 20-23 Jan 2019. IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR). IEEE
- Alt, A. et al. 2018. Analysis of highly efficient self-synchronous class-F microwave rectifiers using waveform engineering. Presented at: 48th European Microwave Conference (EuMC) Madrid, Spain 23-27 Sep 2018. Proceedings of the 48th European Microwave Conference. Piscataway, NJ: IEEE. , pp.773-776. (10.23919/EuMC.2018.8541564)
- Alt, A. et al. 2018. Comparing FET technologies in terms of their suitability for broadband envelope tracking power amplifiers. Presented at: InMMIC Brive La Gaillarde, France 5-6 July 2018. Proceedings of 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits. IEEE. , pp.1-3. (10.1109/INMMIC.2018.8430025)
- Bogusz, A. et al. 2018. Power and efficiency continuous modes in saturated GaN HEMT devices. Presented at: Inmmic 2018 Brive-La-Gaillarde, France 5-6 July 2018. Proceedings of 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits. IEEE. , pp.8430020-8430020. (10.1109/INMMIC.2018.8430020)
- Piacibello, A. et al. 2018. A Ku-band Compact MMIC PA based on Stacked GaAs pHEMT cells. Presented at: International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC) Brive La Gaillarde, France 5-6 Jul 2018. 2018 International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMIC). IEEE. (10.1109/INMMIC.2018.8429989)
- Piacibello, A. et al., 2018. Dual-input driving strategies for performance enhancement of a doherty power amplifier. Presented at: 2018 IEEE MTT-S International Wireless Symposium (IWS) Chengdu, China 6-10 May 2018. 2018 IEEE MTT-S International Wireless Symposium (IWS). IEEE. (10.1109/IEEE-IWS.2018.8400845)
- Quaglia, R. , Camarchia, V. and Pirola, M. 2018. K-band combined GaAs monolithic Doherty power amplifier. Presented at: 2018 IEEE MTT-S International Wireless Symposium (IWS) Chengdu, China 6-10 May 2018. 2018 IEEE MTT-S International Wireless Symposium (IWS2018). IEEE. (10.1109/IEEE-IWS.2018.8400882)
- Quaglia, R. et al. 2018. Analysis and characterization of a load modulated balanced amplifier for base-station applications. Presented at: 2018 11th German Microwave Conference (GeMiC) Freiburg, Germany 12-14 March 2018. 2018 11th German Microwave Conference (GeMiC). IEEE. , pp.1-4. (10.23919/GEMIC.2018.8335013)
- Quaglia, R. et al. 2017. Design and characterization of a 1.7?2.7 GHz quasi-MMIC Doherty power amplifier. Presented at: 2017 IEEE MTT-S International Microwave Symposium (IMS) Honololu, HI, USA 4-9 June 2017. 2017 IEEE MTT-S International Microwave Symposium (IMS). IEEE. , pp.771-773. (10.1109/MWSYM.2017.8058689)
- Camarchia, V. et al., 2017. Power amplifier MMICs for 15 GHz microwave links in 0.25 mu m GaN technology. Presented at: 2017 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop (INMMiC) Graz, Austria 20-21 April 2017. 2017 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop (INMMiC). IEEE. (10.1109/INMMIC.2017.7927311)
- Quaglia, R. and Cripps, S. C. 2017. Harmonic clipping contours: numerical computation and extension to higher harmonics. Presented at: European Microwave Conference London, UK 3-7 Oct. 2016. Microwave Conference (EuMC), 2016 46th European. IEEE. , pp.405-408. (10.1109/EuMC.2016.7824365)
- Camarchia, V. et al., 2016. Characterization of a high power GaN device for class E PA design with non-sinusoidal stimulus. Presented at: 2016 11th European Microwave Integrated Circuits Conference (EuMIC) London, UK 3-4 October 2016. Microwave Integrated Circuits Conference (EuMIC), 2016 11th European. IEEE. , pp.53. (10.1109/EuMIC.2016.7777487)
- Iqbal, M. et al., 2016. A miniaturized wilkinson power divider for ultra wide-band operation. Presented at: 2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON)2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON). IEEE(10.1109/MIKON.2016.7492081)
- Ramella, C. et al., 2016. Characterization-oriented design of a compact GaAs MMIC 3-stacked power cell. Presented at: Microwave, Radar and Wireless Communications (MIKON), 2016 21st International Conference on Krakow, Poland 9-11 May 2016. Microwave, Radar andWireless Communications (MIKON), 2016 21st International Conference on. IEEE(10.1109/MIKON.2016.7491950)
- Fersch, T. et al., 2015. Stacked GaAs pHEMTs: Design of a K-band power amplifier and experimental characterization of mismatch effects. Presented at: 2015 IEEE MTT-S International Microwave Symposium (IMS) Phoenix, AZ 17-22 May 2015. 2015 IEEE MTT-S International Microwave Symposium (IMS). IEEE(10.1109/MWSYM.2015.7166762)
- Giofre, R. et al., 2015. GaN-MMIC Doherty power amplifier with integrated reconfigurable input network for microwave backhaul applications. Presented at: 2015 IEEE MTT-S International Microwave Symposium (IMS) Phoenix, AZ 17-22 May 2015. 2015 IEEE MTT-S International Microwave Symposium (IMS). IEEE(10.1109/MWSYM.2015.7166763)
- Camarchia, V. et al., 2013. Bandwidth extension of GaN Doherty power amplifier: Effect on power, efficiency and linearity. Presented at: 2013 IEEE International Wireless Symposium (IWS) Beijing, China 14-18 April 2013. 2013 IEEE International Wireless Symposium (IWS). IEEE. , pp.1-4. (10.1109/IEEE-IWS.2013.6616789)
- Camarchia, V. et al., 2012. X-band wideband 5W GaN MMIC power amplifier with large-signal gain equalization. Presented at: 2012 Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits Dublin, Ireland 3-4 September 2012. 2012 Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits. IEEE. , pp.1-3. (10.1109/INMMIC.2012.6331935)
- Moreno Rubio, J. et al. 2011. A 22W 65% efficiency GaN Doherty Power Amplifier at 3.5 GHz for WiMAX applications. Presented at: 2011 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits Vienna, Austria 18-19 April 2011. Integrated Nonlinear Microwave and Millimeterwave Circuits, INMMIC, International Workshop on. IEEE. , pp.1. (10.1109/INMMIC.2011.5773332)
Ymchwil
Contractau
| Teitl | Pobl | Noddwr | Gwerth | Hyd |
|---|---|---|---|---|
| Astudiaeth Dichonoldeb Mwyhadur Band E/D | Dr Roberto Quaglia, Yr Athro Paul Tasker, Dr Aleksander Bogusz | Cwmni Preifat | 15,000 | 01/09/2025-14/11/2025 |
|
RHAID RF |
Dr Roberto Quaglia, Yr Athro Paul Tasker, Yr Athro Steve Cripps | EPSRC |
640,890 |
28/04/2025-27/04/2028 |
|
Cyplyddion ailffurfweddadwy ar gyfer cymwysiadau RADAR |
Dr Roberto Quaglia, Cwmni Preifat yr Athro Steve Cripps |
34,743 |
01/09/2024-30/04/2025 |
|
|
Hyrwyddo modelu signal mawr o transistorau amledd uchel trwy gydgyfeirio model ffwythiant ymddygiadol a chyflwr |
Yr Athro Paul Tasker, Dr Roberto Quaglia, Dr Jonathan Lees | Catapwlt CSA |
135,000 |
01/09/2024-31/08/2026 |
|
AURA |
Dr Roberto Quaglia, Yr Athro Paul Tasker, Dr James Bell, Dr Jonathan Lees, Yr Athro Khaled Elgaid, Dr Abdalla Eblabla | Parallel Wireless, CSA Catapult |
291,617 |
01/04/2024-28/02/2025 |
|
Hyrwyddo Cylchedau Rheoli ar gyfer PAs Band Eang Ailffurfweddadwy |
Dr Roberto Quaglia, Yr Athro Steve Cripps, Yr Athro Paul Tasker Cwmni | Preifat | 61,660 |
01/02/2024-31/12024 |
|
OPTIME-PA: Dyluniad MMIC gorau posibl o chwyddseinyddion pŵer E-band ar gyfer Satcom gan ddefnyddio mesuriadau pwrpasol a modelu aflinol |
Dr Roberto Quaglia, Yr Athro Tasker | Innovate UK | 48,984 |
09/2023-01/2024 |
|
Mwyhadur Band Eang gyda Dulliau Gweithredu Lluosog |
Dr Roberto Quaglia, Athro SC Cripps Cwmni | Preifat | 20,000 |
01/2022-12/2022 |
|
Mwyhadur Band Eang Llinol ar gyfer Gweithredu gyda Llwythi Mismatched |
Dr Roberto Quaglia, Yr Athro SC Cripps Cwmni | Preifat | 33,471 |
07/2022-12/2022 |
|
Mesur dyfeisiau GaN |
Dr Roberto Quaglia | ESA ESTEC | 15,789 |
08/2020-06/2021 |
|
Chwyddseinyddion pŵer Ka-Band ar gyfer |
Dr Roberto Quaglia, Yr Athro PJ Tasker | EPSRC IAA | 9,979 |
06/2021-12/2021 |
|
Mwyhadur band eang ar gyfer gweithredu |
Dr Roberto Quaglia, Yr Athro SC Cripps | Cwmni Preifat | 87,759 |
02/2021-02/2022 |
|
Dyluniad mwyhadur pŵer band eang gydag ymateb pŵer ac effeithlonrwydd gwastad |
Yr Athro SC Cripps, Dr Roberto Quaglia | Cwmni Preifat | 52,894 |
11/2019-10/2020 |
|
Nodweddu arbrofol o transistorau GaN ar gyfer cymwysiadau modiwledig llwyth gyda foltedd rhagfarn draen ffurfweddadwy |
Dr R Quaglia, Dr J Bell, Yr Athro PJ Tasker Cwmni | Preifat | 81,500 |
10/2019-09/2023 |
|
Cysyniadau chwyddseinyddion ailffurfweddadwy band eang uwch gan ddefnyddio pensaernïaeth cylched newydd a dulliau gweithredu |
Dr R Quaglia, Cwmni Preifat yr Athro S Cripps | 179,433 |
09/2018-06/2019 |
|
| Dyfeisiau, cylchedau a systemau tonnau milimetr aflinol (signal mawr) cyfleuster nodweddu ar wafer | YrAthro P Tasker, Dr K Elgaid, Dr J Bell, Dr R Quaglia, Yr Athro S Cripps, Yr Athro J Benedikt, Dr J Lees | EPSRC | 1,463,185 |
10/2018-09/2019 |
| Mwyhadur doherty band Ka-band sengl | Dr Roberto Quaglia | Asiantaeth Ofod Ewrop | 70,886 |
06/2018-10/2020 |
| chwyddseinyddion pŵer tonnau mm ar gyfer araeau antena gweithredol | Dr R Quaglia, Dr J Lees, Cwmni Preifat yr Athro S Cripps | 73,200 |
11/2018-11/2019 |
|
| Chwyddseinyddion pŵer effeithlonrwydd uchel ar gyfer gorsafoedd sylfaen y genhedlaeth symudol nesaf | Dr R Quaglia, Dr J Bell | Cwmni Preifat | 45,067 |
01/2019-07/2022 |
| Pensaernïaeth PA effeithlonrwydd uchel ar gyfer gweithrediad band deuol | Dr R Quaglia, Cwmni Preifat yr Athro S Cripps | 361,202 |
08/2018-11/2020 |
Myfyrwyr dan oruchwyliaeth
| Teitl | Gradd Statws | Myfyriwr | |
|---|---|---|---|
| Technegau Band Eang ar gyfer PAs Effeithlonrwydd Uchel y gellir eu hailffurfweddu | Jean-Baptiste Urvoy | PhD cyfredol | |
|
Chwyddseinyddion pŵer ailffurfweddadwy ar gyfer cymwysiadau microdon |
Aquila Powell | PhD cyfredol | |
|
Mwyhadur pŵer di-wifr ar gyfer |
Kris Yuan | PhD cyfredol | |
| Gwella Effeithlonrwydd Trosglwyddyddion Ar gyfer Rhwydweithiau Symudol Gwyrddach | Indy van den Heuvel | PhD cyfredol | |
| Terfynu addasu adlewyrchol microdon gyda gallu trin pŵer uchel | Seyed Ghozati | PhD Cyfredol | |
| Gwella dyluniad Mwyhadur Pŵer ar gyfer Ffurfweddadwyedd rhagfarn | Graddiodd | Ehsan Azad | PhD |
|
Tynnu llwyth-tonnau mm gwell ar gyfer nodweddu technoleg CS |
Alexander Baddeley | PhD cyfredol | |
| Llwyth uwch mwyhadur pŵer modiwleiddio ar gyfer cymwysiadau telathrebu di-wifr | Graddiodd | Derek Kozel | PhD |
Addysgu
Addysgu israddedig:
Rwy'n addysgu electroneg analog a digidol (EN1215 / EN1218) yn y flwyddyn gyntaf i fyfyrwyr Electronig ac Integredig.
Addysgu ôl-raddedig:
Rwy'n addysgu meddalwedd CAD ac efelychu (ENT672), offeryniaeth (EN799 / EN4089), modelu a mesur dyfeisiau cyflwr solet (ENT610 / EN4910), a chwyddseinyddion pŵer amledd uchel (ENT898) i fyfyrwyr MSc a MEng ym meysydd Microdon a Di-wifr, Technolegau Cyfathrebu ac Electroneg Lled-ddargludyddion Cyfansawdd.
Rwy'n diwtor blwyddyn ar gyfer yr MSc yn y meysydd hyn.
Bywgraffiad
Graddiais cum laude mewn Peirianneg Electronig o Politecnico di Torino yn 2008.
Cefais fy PhD o Politecnico di Torino, yr Eidal, yn 2012, lle rwyf wedi bod yn gweithio ar ddylunio, nodweddu a llinellu mwyhadur pŵer.
Rhwng 2012 a 2014 rwyf wedi bod yn gymrawd ôl-ddoethurol yn Politecnico di Torino.
Yn 2015 ymunais â Huawei Technologies, lle dyluniais gydrannau tonnau milimetr ar gyfer prototeipiau 5G.
Dechreuais fy swydd ym Mhrifysgol Caerdydd ym mis Medi 2015 gyda Chymrodoriaeth MSCA gan yr Undeb Ewropeaidd. Roedd y prosiect 2 flynedd PADWIC yn trin theori a thechnegau mewn dylunio mwyhadur pŵer ar gyfer cymwysiadau telathrebu amledd uchel, yn seiliedig ar dechnolegau hybrid ac integredig.
Ym mis Chwefror 2017 cefais fy mhenodi'n Ddarlithydd yn Ysgol Peirianneg Prifysgol Caerdydd, rôl a ddechreuais ym mis Medi 2017.
Rwyf yn y paneli adolygu'r Symposiwm Microdon Rhyngwladol a'r Cynadleddau Microdon Ewropeaidd, ac yn adolygydd rheolaidd ar gyfer Trafodion IEEE ar Theori a Thechnegau Microdon a'r IEEE Microwave and Wireless Components Letters.
Rwy'n Gadeirydd Etholedig Pwyllgor Technegol Cymdeithas Theori a Thechnegau Microdon IEEE 12 "Technegau pŵer uchel microdon", yr wyf yn trefnu gweithdai a sesiynau arbennig yn rheolaidd yn y prif gynadleddau yn y sector.
Anrhydeddau a dyfarniadau
Gwobr MTT-S 2024 am Papaer Gorau yng Nghylchgrawn Microwage IEEE
2009 Cymrodoriaeth Ymchwil Graddedig Ifanc a gyflwynwyd gan Gymdeithas GAAS.
Cymrodoriaeth Unigol 2015 a gefnogir gan yr Undeb Ewropeaidd yng nghynllun Marie Sklodowska Curie
Aelodaethau proffesiynol
Aelod IEEE
Aelod MTT-S
Aelod IET
Pwyllgorau ac adolygu
Rwy'n aelod etholedig o Bwyllgor Technegol IEEE MTT MTT-5 TECHNEGAU PŴER UCHEL MICRODON
Rwy'n adolygydd i'r EPSRC.
Rwy'n adolygydd ar gyfer y Trafodiad IEEE ar Theori a Thechnegau Microdon a Llythyrau Cydrannau Di-wifr IEEE. Rydw i yn y bwrdd adfywio ar gyfer Wythnos Microdon Ewrop.
Meysydd goruchwyliaeth
Ar hyn o bryd rwy'n goruchwylio 8 myfyriwr PhD fel prif oruchwyliwr ym meysydd dylunio, nodweddu a modelu mwyhadur pŵer amledd uchel. Rwyf hefyd yn goruchwylio myfyrwyr eraill mewn meysydd tebyg.
Mae gen i ddiddordeb mewn goruchwylio myfyrwyr PhD ym meysydd:
- Mwyhadur pŵer dylunio a nodweddu
- Nodweddu aflinol microdon a milimetrau
- Nodweddu lefel system, modelu a llinelloli
Goruchwyliaeth gyfredol
Prosiectau'r gorffennol
- Gwella Cywirdeb mewn Systemau Mesur Tonnau Milimetr Signal Mawr
- CHWYDDSEINYDDION PŴER WEDI'U MODIWLEIDDIO LLWYTH UWCH AR GYFER CYMWYSIADAU TELATHREBU DI-WIFR
- Gwella Effeithlonrwydd mewn Mwyhadur Pŵer Gorsaf Sylfaen
Contact Details
[email protected]
+44 29208 70524
Adeiladau'r Frenhines-Adeilad Canolog, Ystafell C/4.13, 5 The Parade, Ffordd Casnewydd, Caerdydd, CF24 3AA
+44 29208 70524
Adeiladau'r Frenhines-Adeilad Canolog, Ystafell C/4.13, 5 The Parade, Ffordd Casnewydd, Caerdydd, CF24 3AA