Multilayer microwave windows for wideband gyro-amplifiers

Donaldson, C. R. and McElhinney, P. and Zhang, L. and He, W. (2016) Multilayer microwave windows for wideband gyro-amplifiers. In: 2015 8th UK, Europe, China Millimeter Waves and THz Technology Workshop, UCMMT 2015. Institute of Electrical and Electronics Engineers Inc., Piscataway. ISBN 9781467374347

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    Abstract

    This paper presents the design and measurement of a HE11 mode multilayer window for a W-band gyro-amplifier. The window acts to seal the vacuum inside the amplifier whilst coupling out microwave power with minimal reflection and absorption. The Gaussian-like HE11 mode is used in order to achieve the lowest reflection through the window. Operating over 90-100 GHz the simulated reflection of this window is better than -30 dB. The design, simulation and microwave measurement of the window is presented.