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A Q-band compact high-performance double-ridged orthomode transducer

文献类型：期刊论文

作者Zhong, Weiye1,2,3; Yin, Xiaoxing1; Shi, Shengcai3,4
刊名INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
出版日期2019-10-08
页码7
ISSN号1096-4290
关键词double-ridged orthomode transducers (OMTs) radio astronomy
DOI10.1002/mmce.21982
通讯作者Zhong, Weiye(wyzhong@shao.ac.cn)
英文摘要In this article, a Q-band compact waveguide orthomode transducer (OMT) based on a stepped double-ridged waveguide is presented. By using a symmetrical structure, good output return losses of above 20 dB are obtained from 35 to 50 GHz. In particular, the measured insertion losses are as low as 0.15 to 0.4 dB over the entire band for both polarization channels with an improved assembly configuration. The measured cross-polarization levels are well below -37 dB, while the circular-polarized output port isolation is less than -20 dB combined with a feed horn and a differential phase shifter. The developed OMTs have been used in a Q-band two-beam cryogenic receiver on the Tianma Radio Telescope, contributing only 1 to 2 K noise at an operation temperature around 20 K.
WOS研究方向Computer Science ; Engineering
语种英语
出版者WILEY
WOS记录号WOS:000489454800001
源URL[http://libir.pmo.ac.cn/handle/332002/28288]  
专题中国科学院紫金山天文台
通讯作者Zhong, Weiye
作者单位1.Southeast Univ, Sch Informat Sci & Engn, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing, Jiangsu, Peoples R China
4.Chinese Acad Sci, Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Zhong, Weiye,Yin, Xiaoxing,Shi, Shengcai. A Q-band compact high-performance double-ridged orthomode transducer[J]. INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING,2019:7.
APA Zhong, Weiye,Yin, Xiaoxing,&Shi, Shengcai.(2019).A Q-band compact high-performance double-ridged orthomode transducer.INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING,7.
MLA Zhong, Weiye,et al."A Q-band compact high-performance double-ridged orthomode transducer".INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING (2019):7.

入库方式： OAI收割

来源：紫金山天文台

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