W-band Brewster window for a wideband gyro-TWA

Zhang, Liang and Zhang, Yanyan and He, Wenlong and Donaldson, Craig R. and McElhinney, Paul and Phelps, Alan D. R. and Cross, Adrian W.; (2016) W-band Brewster window for a wideband gyro-TWA. In: 2015 8th UK, Europe, China Millimeter Waves and THz Technology Workshop, UCMMT 2015. Institute of Electrical and Electronics Engineers Inc., GBR. ISBN 9781467374347

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    This paper presents the design of a Brewster window for a W-band gyrotron travelling wave amplifier (gyro-TWA). To maintain the Gaussian-like HE11 mode from the corrugated horn, a corrugated waveguide was optimized to host the Brewster window. The Brewster window was simulated and measured to have a lower than -20 dB reflection over the frequency band 85-101 GHz.