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Jeff Powell
Jeff Powell
Verified email at bham.ac.uk
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Cited by
Cited by
Year
Thin-film ferroelectric microwave devices
MJ Lancaster, J Powell, A Porch
Superconductor Science and Technology 11 (11), 1323, 1998
2991998
An efficient broadband reconfigurable power amplifier using active load modulation
DJ Shepphard, J Powell, SC Cripps
IEEE Microwave and Wireless Components Letters 26 (6), 443-445, 2016
2112016
High Tc coplanar resonators for microwave applications and scientific studies
CE Gough, A Porch, MJ Lancaster, JR Powell, B Avenhaus, JJ Wingfield, ...
Physica C: Superconductivity 282, 395-398, 1997
581997
A broadband reconfigurable load modulated balanced amplifier (LMBA)
DJ Shepphard, J Powell, SC Cripps
2017 IEEE MTT-S International Microwave Symposium (IMS), 947-949, 2017
482017
A Power Reconfigurable High-Efficiency -Band Power Amplifier MMIC Using the Load Modulated Balanced Amplifier Technique
JR Powell, DJ Shepphard, R Quaglia, SC Cripps
IEEE Microwave and Wireless Components Letters 28 (6), 527-529, 2018
462018
Analysis of DC-RF dispersion in AlGaN/GaN HFETs using pulsed IV and time-domain waveform measurements
P McGovern, J Benedikt, PJ Tasker, J Powell, KP Hilton, JL Glasper, ...
IEEE MTT-S International Microwave Symposium Digest, 2005., 503-509, 2005
452005
Field, temperature, and frequency dependence of the surface impedance of thin films
JR Powell, A Porch, RG Humphreys, F Wellhöfer, MJ Lancaster, ...
Physical Review B 57 (9), 5474, 1998
451998
GaAs X-band high efficiency (> 65%) Broadband (> 30%) amplifier MMIC based on the Class B to Class J continuum
JR Powell, MJ Uren, T Martin, A McLachlan, P Tasker, S Woodington, ...
2011 IEEE MTT-S International Microwave Symposium, 1-4, 2011
432011
A 290–310 GHz single sideband mixer with integrated waveguide filters
C Guo, X Shang, MJ Lancaster, J Xu, J Powell, H Wang, ...
IEEE Transactions on Terahertz Science and Technology 8 (4), 446-454, 2018
362018
Coupling matrix-based design of waveguide filter amplifiers
Y Gao, J Powell, X Shang, MJ Lancaster
IEEE Transactions on Microwave Theory and Techniques 66 (12), 5300-5309, 2018
332018
X-band GaN SPDT MMIC with over 25 watt linear power handling
J Janssen, KP Hilton, JO Maclean, DJ Wallis, J Powell, M Uren, T Martin, ...
2008 European Microwave Integrated Circuit Conference, 190-193, 2008
332008
A 135–150-GHz frequency tripler with waveguide filter matching
C Guo, X Shang, MJ Lancaster, J Xu, J Powell, H Wang, B Alderman, ...
IEEE Transactions on Microwave Theory and Techniques 66 (10), 4608-4616, 2018
322018
A 180-GHz Schottky Diode Frequency Doubler With Counter-Rotated-Fields to Provide In-Phase Power-Combining
C Viegas, H Liu, J Powell, H Sanghera, A Whimster, L Donoghue, ...
IEEE Microwave and Wireless Components Letters 28 (6), 518-520, 2018
312018
Optimal design of broadband microwave baluns using single-layer planar circuit technology
T Canning, JR Powell, SC Cripps
IEEE transactions on microwave theory and techniques 62 (5), 1183-1191, 2014
302014
The nonlinear surface impedance of thin films in zero and large applied fields
JR Powell, A Porch, AP Kharel, MJ Lancaster, RG Humphreys, ...
Journal of applied physics 86 (4), 2137-2145, 1999
301999
Unusual features in the nonlinear microwave surface impedance of Y-Ba-Cu-O thin films
AP Kharel, AV Velichko, JR Powell, A Porch, MJ Lancaster, ...
Physical Review B 58 (17), 11189, 1998
291998
Integrated waveguide filter amplifier using the coupling matrix technique
Y Gao, X Shang, C Guo, J Powell, Y Wang, MJ Lancaster
IEEE Microwave and Wireless Components Letters 29 (4), 267-269, 2019
252019
Active millimeter-wave radiometry for nondestructive testing/evaluation of composites—Glass fiber reinforced polymer
C Viegas, B Alderman, PG Huggard, J Powell, K Parow-Souchon, ...
IEEE Transactions on Microwave Theory and Techniques 65 (2), 641-650, 2016
242016
The orthogonal LMBA: A novel RFPA architecture with broadband reconfigurability
DJ Collins, R Quaglia, JR Powell, SC Cripps
IEEE Microwave and Wireless Components Letters 30 (9), 888-891, 2020
232020
Experimental gallium nitride microwave Doherty amplifier
J Lees, J Benedikt, KP Hilton, J Powell, RS Balmer, MJ Uren, T Martin, ...
Electronics Letters 41 (23), 1, 2005
212005
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