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

McElhinney, Paul
Donaldson, Craig R.
He, Wenlong
Zhang, Liang
Ronald, Kevin
Phelps, Alan D. R.
Cross, Adrian W.

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Publication date

August 2012

DOI

10.1109/IVEC.2012.6262256

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Language

English

Abstract

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

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

Abstract

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

Abstract

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