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Roberto Quaglia

Dr Roberto Quaglia

Lecturer - Teaching and Research

School of Engineering

+44 29208 70524
Queen's Buildings - Central Building, Room C/4.13, 5 The Parade, Newport Road, Cardiff, CF24 3AA
Available for postgraduate supervision


I am a Lecturer in the School of Engineering. My research focusses on high frequency power amplifiers

I am the Deputy Research Group Leader of the Centre for High Frequency Engineering: 

I have published around 100 peer-reviewed scientific papers, of which more than 40 on international journals. I am co-author of the books "Electronics for Microwave Backhaul" and "Telecommunication Electronics" published by Artech House.

I am Year Tutor for the MSc courses related to Microwave and Wireless technologies and Compound Semiconductor Electronics.

I teach master-level modules on advanced microwave techniques, and undergraduate modules on Analogue and Digital Electronics.


















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. Wiley-Blackwell




Title People Sponsor Value Duration

Broadband Amplifiers with Multiple Operation Modes

Dr Roberto Quaglia, Prof SC Cripps Private Company 20,000


Linear Broadband Amplifier for Operation with Mismatched Loads

Dr Roberto Quaglia, Prof SC Cripps Private Company 33,471


Measurement of GaN devices
around V band

Dr Roberto Quaglia ESA ESTEC 15,789


Ka-Band power amplifiers for
satellite communications

Dr Roberto Quaglia, Prof PJ Tasker EPSRC IAA 9,979


Broadband amplifier for operation
in the presence of mismatched load

Dr Roberto Quaglia, Prof SC Cripps Private Company 87,759


Broadband power amplifier design with flat power and efficiency response

Prof SC Cripps, Dr Roberto Quaglia Private Company 52,894


Experimental characterisation of GaN transistors for load modulated applications with configurable drain bias voltage

Dr R Quaglia, Dr J Bell, Prof PJ Tasker Private Company 81,500


Advanced broadband reconfigurable amplifiers concepts using novel circuit architectures and operating modes

Dr R Quaglia, Prof S Cripps Private Company 179,433


Non-linear (large signal) millimetre-wave devices, circuits and systems on-wafer characterisation facility Prof P Tasker, Dr K Elgaid, Dr J Bell, Dr R Quaglia, Prof S Cripps, Prof J Benedikt, Dr J Lees EPSRC 1,463,185


Single-chip Ka-band doherty amplifier Dr Roberto Quaglia European Space Agency 70,886


mm-wave power amplifiers for active antenna arrays Dr R Quaglia, Dr J Lees, Prof S Cripps Private Company 73,200


High efficiency power amplifiers for base-stations of the next mobile generation Dr R Quaglia, Dr J Bell Private Company 45,067


High efficiency PA architectures for dual-band operation Dr R Quaglia, Prof S Cripps Private Company 361,202


Supervised Students

Title Student Status Degree
Broadband Techniques for Reconfigurable High-Efficiency PAs Jean-Baptiste Urvoy Current PhD

Reconfigurable power amplifiers for microwave applications

Aquila Powell Current PhD

Wireless power amplifier for
future telecom systems (5G and 6G)

Kris Yuan Current PhD
Improvement Of Transmitters Efficiency
For Greener Mobile Networks
Indy van den Heuvel Current PhD
Microwave reflective tunable termination
with high power handling capability 
Seyed Ghozati Current PhD
Improving Power Amplifier design for bias Configurability Ehsan Azad Current PhD

Enhanced mm-wave load-pull for characterisation of CS technology

Alexander Baddeley Current PhD
Advanced load modulated power amplifiers
for wireless telecom applications
Derek Kozel Current PhD
Broadband High Efficiency High Power Amplifiers David Collins Writing PhD


Undergraduate teaching:

I teach analogue and digital electronics (EN1082/EN2078 and EN1083/EN2079) in the first year to Electronic, Integrated and Medical Engineering students.

Post-Graduate teaching:

I teach CAD and simulation software (ENT672), instrumentation (EN799/EN4089), modelling and measurement of solid state devices (ENT610/EN4910), and high frequency power amplifiers (ENT898) to MSc and MEng students in the areas of Microwave and Wireless, Communication Technologies and Compound Semiconductor Electronics.

I am year tutor for the MSc in these areas.


I graduated cum laude in Electronic Engineering from Politecnico di Torino in 2008.

I obtained my PhD from Politecnico di Torino, Italy, in 2012, where I have been working on power amplifier design, characterization and linearization.

From 2012 to 2014 I have been a Post-Doc fellow at Politecnico di Torino.

In 2015 I joined Huawei Technologies, where I designed millimetre-wave components for 5G prototypes.

I started my position at Cardiff University in September 2015 with a MSCA Fellowship from the European Union. The 2-year project PADWIC treated theory and techniques in power amplifier design for high frequency telecom applications, based on hybrid and integrated technologies.

In February 2017 I have been appointed as a Lecturer at the Schoool of Engineering of Cardiff University, a role that I started in September 2017.

I am in the review panels of the European Microwave Conferences, and a regular reviewer for the IEEE Transactions on Microwave Theory and Techniques and the IEEE Microwave and Wireless Components Letters. 

I am a member of the IEEE Microwave Theory and Techniques Society Technical Committe 12 "Microwave high-power techniques", with which I regularly organize workshops and special session at the main conferences in the sector.

I am currently a special-issue editor for the MPDI Journal "Electronics", and the Co-Chair of PAWR 2021. 

Honours and awards

2009 Young Graduated Research Fellowship presented by the GAAS Association.

2015 Individual Fellowship supported by the European Union in the Marie Sklodowska Curie scheme

Professional memberships

IEEE Member

Committees and reviewing

I am an elected member of the IEEE MTT Technical Committee MTT-5 MICROWAVE HIGH-POWER TECHNIQUES

I am a reviewer for the EPSRC. 

I am a reviewer for the IEEE Transaction on Microwave Theory and Techniques and the IEEE Microwave and Wireless Components Letters. I am in the reviweing board for the European Microwave Week.


I currently supervise 8 PhD students as main supervisor in the areas of high frequency power amplifier design, characterisation and modelling. I also co-supervise other students in similar areas.

I am interested in supervising PhD students in the areas of:

  • Power amplifiers design and characterisation
  • Microwave and millimetre-wave non-linear characterisation
  • System level characterisation, modelling and linearisation

Current supervision

Alex Baddeley

Alex Baddeley

Research student

Ehsan Azad

Ehsan Azad

Research student

Derek Kozel

Derek Kozel

Research student

Seyed Ghozati

Seyed Ghozati

Research student

Kris Yuan

Kris Yuan

Research student

Indy Van Den Heuvel

Indy Van Den Heuvel

Research student

Aquila Powell

Aquila Powell

Research student