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Multi-frequency dual polarisation radiometer common aperture antenna feeding system
Wang Hongjian; Hao Qiyan; Yi Min; Zhang Dehai; Dong Xingchao; Liu Yang; Chen Xue; Wang, HJ (reprint author), Natl Space Sci Ctr, CAS Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.; Wang, HJ (reprint author), Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, 19 A Yuquan Rd, Beijing 100049, Peoples R China.
Department微波遥感部
Source PublicationIET MICROWAVES ANTENNAS & PROPAGATION
2018
Pages1765-1770
Language英语
ISSN1751-8725
AbstractThis study presents a design of a tri-band dual polarisation common aperture feed horn used for the radiometer. The proposed feeding system is made up of a corrugated horn, an orthomode transducer (OMT) and two pairs of a high-pass filter (HPF) and a band-pass filter (BPF). The broadband profiled corrugated horn loaded with teeth (rings) is adopted as the feed of the radiometer. Wideband finline OMT is developed to realise a bandwidth ratio in excess of 2:1. Two different HPFs and BPFs are employed to block and pass waves of different frequencies. The feeding structure is then simulated, fabricated and tested. The measured results show that the radiation patterns possess good symmetry at all three working frequencies of interest (18.7, 23.8 and 37GHz). Furthermore, the cross-polarisation levels are below -23dB and voltage standing-wave ratios are lower than 1.5 throughout all working bands.
Conference Name10th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT)
Conference DateSEP, 2017
Conference PlaceLiverpool, ENGLAND
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6415
Collection微波遥感部
Corresponding AuthorWang, HJ (reprint author), Natl Space Sci Ctr, CAS Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China.; Wang, HJ (reprint author), Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, 19 A Yuquan Rd, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Wang Hongjian,Hao Qiyan,Yi Min,et al. Multi-frequency dual polarisation radiometer common aperture antenna feeding system[C],2018:1765-1770.
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