Output coupler for a THz gyro-amplifier

Donaldson, Craig R. and Zhang, Liang and He, Wenlong; (2019) Output coupler for a THz gyro-amplifier. In: 2019 International Vacuum Electronics Conference (IVEC). IEEE, KOR. ISBN 978-1-5386-7534-2 (https://doi.org/10.1109/IVEC.2019.8745239)

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Abstract

This paper presents the design and simulation results of an output coupler for a gyro-amplifier operating at THz frequencies. The combination of a smoothly profiled horn and multilayer microwave window allow for the almost total conversion of the TE11 mode to the Gaussian-like HE11 mode while forming a vacuum tight seal with very low reflections. This assembly operates over the 360-384 GHz frequency range.