High power wideband gyrotron backward wave oscillator operating towards the terahertz region W He, CR Donaldson, L Zhang, K Ronald, P McElhinney, AW Cross
Physical review letters 110 (16), 165101, 2013
197 2013 A cusp electron gun for millimeter wave gyrodevices CR Donaldson, W He, AW Cross, F Li, ADR Phelps, L Zhang, K Ronald, ...
Applied Physics Letters 96 (14), 2010
137 2010 Broadband amplification of low-terahertz signals using axis-encircling electrons in a helically corrugated interaction region W He, CR Donaldson, L Zhang, K Ronald, ADR Phelps, AW Cross
Physical Review Letters 119 (18), 184801, 2017
111 2017 Multi-mode coupling wave theory for helically corrugated waveguide L Zhang, W He, K Ronald, ADR Phelps, CG Whyte, CW Robertson, ...
IEEE transactions on microwave theory and techniques 60 (1), 1-7, 2011
110 2011 Design and numerical optimization of a cusp-gun-based electron beam for millimeter-wave gyro-devices CR Donaldson, W He, AW Cross, ADR Phelps, F Li, K Ronald, ...
IEEE transactions on plasma science 37 (11), 2153-2157, 2009
76 2009 A W-band multi-layer microwave window for pulsed operation of gyro-devices CR Donaldson, W He, L Zhang, AW Cross
IEEE microwave and wireless components letters 23 (5), 237-239, 2013
73 2013 A high directivity broadband corrugated horn for W-band gyro-devices P McElhinney, CR Donaldson, L Zhang, W He
IEEE transactions on antennas and propagation 61 (3), 1453-1456, 2012
71 2012 Design and measurement of a broadband sidewall coupler for a W-band gyro-TWA L Zhang, W He, CR Donaldson, JR Garner, P McElhinney, AW Cross
IEEE Transactions on Microwave Theory and Techniques 63 (10), 3183-3190, 2015
66 2015 Wide-Band Mode Terahertz Wave Windows for Gyro-Amplifiers CR Donaldson, P McElhinney, L Zhang, W He
IEEE Transactions on Terahertz Science and Technology 6 (1), 108-112, 2015
63 2015 Optimization and measurement of a smoothly profiled horn for a W-band gyro-TWA L Zhang, W He, CR Donaldson, GM Smith, DA Robertson, RI Hunter, ...
IEEE Transactions on Electron Devices 64 (6), 2665-2669, 2017
46 2017 W-band gyro-devices using helically corrugated waveguide and cusp gun: design, simulation and experiment W He, CR Donaldson, F Li, L Zhang, AW Cross, ADR Phelps, K Ronald, ...
Terahertz Science & Technology 4 (1), 9-19, 2011
40 2011 Design study of a fundamental mode input coupler for a 372-GHz gyro-TWA I: Rectangular-to-circular coupling methods JR Garner, L Zhang, CR Donaldson, AW Cross, W He
IEEE Transactions on Electron Devices 63 (1), 497-503, 2015
37 2015 Design and simulation of a∼ 390 GHz seventh harmonic gyrotron using a large orbit electron beam F Li, W He, AW Cross, CR Donaldson, L Zhang, ADR Phelps, K Ronald
Journal of Physics D: Applied Physics 43 (15), 155204, 2010
37 2010 Design and measurement of a polarization convertor based on a truncated circular waveguide L Zhang, CR Donaldson, W He
Journal of Physics D: Applied Physics 45 (34), 345103, 2012
33 2012 A Pillbox Window With Impedance Matching Sections for a -Band Gyro-TWA L Zhang, CR Donaldson, AW Cross, W He
IEEE Electron Device Letters 39 (7), 1081-1084, 2018
31 2018 Amplification of Frequency-Swept Signals in a -Band Gyrotron Travelling Wave Amplifier L Zhang, CR Donaldson, P Cain, AW Cross, W He
IEEE Electron Device Letters 39 (7), 1077-1080, 2018
25 2018 An output coupler for a W-band high power wideband gyroamplifier P McElhinney, CR Donaldson, JE McKay, L Zhang, DA Robertson, ...
IEEE Transactions on Electron Devices 64 (4), 1763-1766, 2017
25 2017 Bandwidth study of the microwave reflectors with rectangular corrugations L Zhang, W He, CR Donaldson, AW Cross
Journal of Infrared, Millimeter, and Terahertz Waves 37, 846-856, 2016
24 2016 Design study of a 372-GHz higher order mode input coupler JR Garner, L Zhang, CR Donaldson, AW Cross, W He
IEEE Transactions on Electron Devices 63 (8), 3284-3290, 2016
24 2016 Design and measurement of a W-band Brewster window Y Zhang, L Zhang, W He, CR Donaldson, P McElhinney, ADR Phelps, ...
IEEE Microwave and Wireless Components Letters 25 (12), 826-828, 2015
22 2015