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

Liang Zhang; Jason Garner; Craig R. Donaldson; Wenlong He; Alan D. R. Phelps; Adrian W. Cross

doi:10.23919/EuMC.2017.8230911

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

Liang Zhang, Jason Garner, Craig R. Donaldson, Wenlong He, Alan D. R. Phelps, Adrian W. Cross

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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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.

Original language	English
Title of host publication	2017 47th European Microwave Conference (EuMC)
Place of Publication	Piscataway, NJ.
Publisher	IEEE
Pages	568-571
Number of pages	4
ISBN (Electronic)	9782874870477
DOIs	https://doi.org/10.23919/EuMC.2017.8230911
Publication status	Published - 21 Dec 2017
Event	47th European Microwave Conference, EuMC 2017 - Nuremburg, Germany Duration: 10 Oct 2017 → 12 Oct 2017

Conference

Conference	47th European Microwave Conference, EuMC 2017
Country/Territory	Germany
City	Nuremburg
Period	10/10/17 → 12/10/17

Keywords

gyro-amplifiers
higher order mode
microwave coupler
waveguide branches

Access to Document

10.23919/EuMC.2017.8230911

Zhang-etal-EuMC-2017-Design-of-a-TE10-to-TE61-mode-coupler-for-a-372-GHz-gyrotron-travelling-wave-amplifierAccepted author manuscript, 332 KB

Gyrotron Travelling Wave Amplifier for high field Electron Paramagnetic Resonance
Cross, A., He, W. & Ronald, K.
EPSRC (Engineering and Physical Sciences Research Council)
1/06/13 → 30/11/16
Project: Research

Cite this

@inproceedings{65674fa350a04f488c43861a7df7615f,

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

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.",

keywords = "gyro-amplifiers, higher order mode, microwave coupler, waveguide branches",

author = "Liang Zhang and Jason Garner and Donaldson, {Craig R.} and Wenlong He and Phelps, {Alan D. R.} and Cross, {Adrian W.}",

note = "{\textcopyright} 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.; 47th European Microwave Conference, EuMC 2017 ; Conference date: 10-10-2017 Through 12-10-2017",

year = "2017",

month = dec,

day = "21",

doi = "10.23919/EuMC.2017.8230911",

language = "English",

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booktitle = "2017 47th European Microwave Conference (EuMC)",

publisher = "IEEE",

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Zhang, L, Garner, J, Donaldson, CR, He, W, Phelps, ADR & Cross, AW 2017, Design of a TE₁₀-to-TE₆₁ mode coupler for a 372 GHz gyrotron travelling wave amplifier. in 2017 47th European Microwave Conference (EuMC)., 8230911, IEEE, Piscataway, NJ., pp. 568-571, 47th European Microwave Conference, EuMC 2017, Nuremburg, Germany, 10/10/17. https://doi.org/10.23919/EuMC.2017.8230911

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AU - Garner, Jason

AU - Donaldson, Craig R.

AU - He, Wenlong

AU - Phelps, Alan D. R.

AU - Cross, Adrian W.

N1 - © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2017/12/21

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N2 - 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.

AB - 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.

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KW - higher order mode

KW - microwave coupler

KW - waveguide branches

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