Novel Double-Ridged Waveguide Orthomode Transducer for mm-Wave Application

被引：6

作者：

Jiang, Hang ^{[1
]}

Yao, Yuan ^{[1
]}

Xiu, Tao ^{[1
]}

Cheng, Xiaohe ^{[1
]}

Wang, Caixia ^{[2
]}

Wang, Bin ^{[3
]}

Yu, Junsheng ^{[1
]}

Chen, Xiaodong ^{[4
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing Key Lab Work Safety Intelligent Monitorin, Beijing 100876, Peoples R China

[2] CAST Xian, Natl Key Lab Sci & Technol Space Microwave, Xian 710100, Peoples R China

[3] Jiangsu Hengtong Terahertz Technol Co Ltd, Beijing 100876, Peoples R China

[4] Queen Mary Univ London, Sch Elect Engn & Comp Sci, London E1 4NS, England

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2022年 / 32卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Transducers; Waveguide junctions; Antenna measurements; Wireless communication; Loss measurement; Optical device fabrication; Machining; Double-ridged waveguide junction; dual-polarized antenna; millimeter wave (mm-wave); orthomode transducer (OMT); BAND;

D O I：

10.1109/LMWC.2021.3115163

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents our study on a millimeter wave (mm-wave) orthomode transducer (OMT) based on novel double-ridged waveguide junction. By reducing the length of ridges in the square waveguide, the ridge width of proposed junction is about three times wider than that of conventional junction. This benefits the fabrication and mechanical performance of double-ridged waveguide OMT in the higher mm-waveband or terahertz band. The simulated reflection coefficients for both orthogonal modes are less than -20 dB over 37% bandwidth. As practical application, an E-band OMT based on the novel junction is fabricated. A smooth-horn is integrated with the OMT as a dual-polarized antenna. The measured results show that reflection coefficients less than -15 dB, isolation better than 39 dB, and cross-polarization discrimination (XPD) higher than 23 dB are achieved from 71 to 86 GHz.

引用

页码：5 / 8

页数：4

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