PMO OpenIR
A Q-band compact high-performance double-ridged orthomode transducer
Zhong, Weiye1,2,3; Yin, Xiaoxing1; Shi, Shengcai3,4
2019-10-08
Source PublicationINTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
ISSN1096-4290
Pages7
Corresponding AuthorZhong, Weiye(wyzhong@shao.ac.cn)
AbstractIn 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.
Keyworddouble-ridged orthomode transducers (OMTs) radio astronomy
DOI10.1002/mmce.21982
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Interdisciplinary Applications ; Engineering, Electrical & Electronic
WOS IDWOS:000489454800001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/28289
Collection中国科学院紫金山天文台
Corresponding AuthorZhong, Weiye
Affiliation1.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
Recommended Citation
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.
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