A broadband corrugated horn for a W-band gyro-TWA

McElhinney, Paul and Donaldson, Craig R. and He, Wenlong and Zhang, Liang and Ronald, Kevin and Phelps, Alan D. R. and Cross, Adrian W.; (2012) A broadband corrugated horn for a W-band gyro-TWA. In: IVEC 2012. IEEE, Piscataway, NJ.. ISBN 9781467301886 (https://doi.org/10.1109/IVEC.2012.6262256)

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A quasi-optical mode converter in the form of a corrugated horn has been constructed for a W-band gyrotron traveling wave amplifier (gyro-TWA). The prototype was designed and optimized through analytical and numerical simulations. The horn converts a cylindrical TE 11 mode into a free-space TEM 00 mode in a frequency band of 90 GHz to 100 GHz. The optimized simulation predicts a return loss better than -35 dB and a Gaussian coupling efficiency of 97.8% and the measured prototype demonstrates a close agreement with these figures.


McElhinney, Paul, Donaldson, Craig R. ORCID logoORCID: https://orcid.org/0000-0001-6627-2461, He, Wenlong ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, Zhang, Liang ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, Ronald, Kevin ORCID logoORCID: https://orcid.org/0000-0002-8585-0746, Phelps, Alan D. R. ORCID logoORCID: https://orcid.org/0000-0002-1100-1012 and Cross, Adrian W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283;