Design of a coaxial and compact TM01–TE01 mode converter based on helical corrugated waveguide for high-power microwave system

Sidi Liu; Lihui Jiang; Hao Li; Jianing Zhao; Keqiang Wang; Haiyang Wang; Tianming Li; Yihong Zhou; Fadhel M. Ghannouchi; Biao Hu

doi:10.1063/5.0127427

AIP Advances (Nov 2022)

Design of a coaxial and compact TM01–TE01 mode converter based on helical corrugated waveguide for high-power microwave system

Sidi Liu,
Lihui Jiang,
Hao Li,
Jianing Zhao,
Keqiang Wang,
Haiyang Wang,
Tianming Li,
Yihong Zhou,
Fadhel M. Ghannouchi,
Biao Hu

Affiliations

Sidi Liu: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 61000, China
Lihui Jiang: Beijing Institute of Radio Measurement, Beijing 100854, China
Hao Li: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 61000, China
Jianing Zhao: College of Information Science and Engineering, Guilin University of Technology, Guilin 541006, China
Keqiang Wang: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 61000, China
Haiyang Wang: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 61000, China
Tianming Li: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 61000, China
Yihong Zhou: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 61000, China
Fadhel M. Ghannouchi: Department of Electrical and Computer Engineering, University of Calgary, Calgary, Alberta T2N1N4, Canada
Biao Hu: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 61000, China

DOI: https://doi.org/10.1063/5.0127427
Journal volume & issue: Vol. 12, no. 11
pp. 115120 – 115120-7

Abstract

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In this paper, a novel X-band TM01–TE01 mode converter for high-power microwave (HPM) system is proposed. To realize the compact design, a helical corrugated waveguide with large deformation is employed to convert the TM01 mode into TE01 mode. By optimizing the structure parameters, the simulation results demonstrate that the maximum conversion efficiency of the proposed TM01–TE01 mode converter reaches 98.8% at 9.2 GHz. Moreover, this mode converter exhibits a conversion efficiency of over 95% in the operation band from 8.7 to 9.42 GHz, and the power capacity of the mode converter reaches GW-level in theory. More importantly, the overall longitudinal and transverse dimensions of the mode converter are less than three wavelengths. The results show the compact structure and high conversion efficiency of this mode converter, which has great potential application value in the HPM system.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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