Design of a TE10-to-TE61 mode coupler for a 372 GHz gyrotron travelling wave amplifier

Zhang, Liang and Garner, Jason and Donaldson, Craig R. and He, Wenlong and Phelps, Alan D. R. and Cross, Adrian W.; (2017) Design of a TE10-to-TE61 mode coupler for a 372 GHz gyrotron travelling wave amplifier. In: 2017 47th European Microwave Conference (EuMC). IEEE, DEU, pp. 568-571. ISBN 9782874870477

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    Abstract

    This paper presents the design of a TE10-to-TE61 mode coupler for a 372 GHz gyrotron travelling wave amplifier. The optimized coupler was able to achieve an -1 dB transmission over the frequency band of 360-384 GHz. The transmission decreases by 1.2 dB when the copper conductivity of 0.5E7 S/m was used in the simulation. The designed coupler was scaled to W-band for manufacture and measurement. The measured transmission and phase response confirmed the mode coupling between the input TE10 mode and the desired TE61 mode.

    ORCID iDs

    Zhang, Liang ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, Garner, Jason ORCID logoORCID: https://orcid.org/0000-0002-9985-0739, Donaldson, Craig R. ORCID logoORCID: https://orcid.org/0000-0001-6627-2461, He, Wenlong ORCID logoORCID: https://orcid.org/0000-0001-7018-0527, 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;