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

Autor: Sidi Liu, Lihui Jiang, Hao Li, Jianing Zhao, Keqiang Wang, Haiyang Wang, Tianming Li, Yihong Zhou, Fadhel M. Ghannouchi, Biao Hu
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: AIP Advances, Vol 12, Iss 11, Pp 115120-115120-7 (2022)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/5.0127427
Popis: 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.
Databáze: Directory of Open Access Journals