NSSC OpenIR
Multi-frequency Dual-polarization Spaceborne Microwave Radiometer Antennas
Alternative TitleWOS:000564218700209;20203108993097
Wang Hongjian
Source Publication2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020)
2020
Language英语
ISSN2164-3342
ISBN978-88-31299-00-8
AbstractAs part of the overall Haiyang2C (HY2C) ocean dynamic satellite research, atmospheric correction microwave radiometer(ACMR) used to correct atmospheric path delay in the radar altimeter has recently been developed. Observing antenna of ACMR with three frequency bands and dual polarizations is realized by an offset deployable dish fed by a common corrugated horn. The deployable reflector is made of carbon fiber composite (CFRP) supported by a frame that connect to the satellite deck, and the deployment of the dish is implemented by two hinges. The feeding subsystem has a loaded rings corrugated horn, an ultra wideband orthomode transducer(OMT) that covers almost 2:1 bandwidth ratio followed by bandpass filters. Measured results show that the VSWRs are lower than 1.5 throughout all three working bands, the cross-polarization levels (CPs) are below -20 dB, and the main beam efficiency(MBE) is above 90%.
KeywordDual polarization MBE offset orthomode transducer phase center radiometer
Conference Name14th European Conference on Antennas and Propagation (EuCAP)
Conference DateMAR 15-20, 2020
Conference PlaceCopenhagen, DENMARK
Indexed ByCPCI ; EI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7751
Collection中国科学院国家空间科学中心
AffiliationChinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang Hongjian. Multi-frequency Dual-polarization Spaceborne Microwave Radiometer Antennas[C],2020.
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