Multi-frequency dual polarisation radiometer common aperture antenna feeding system

	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.
	2018
会议日期	SEP, 2017
会议地点	Liverpool, ENGLAND
页码	1765-1770
英文摘要	This 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.
会议录	IET MICROWAVES ANTENNAS & PROPAGATION
语种	英语
ISSN号	1751-8725
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/6415]
专题	国家空间科学中心_微波遥感部
通讯作者	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.
推荐引用方式 GB/T 7714	Wang Hongjian,Hao Qiyan,Yi Min,et al. Multi-frequency dual polarisation radiometer common aperture antenna feeding system[C]. 见:. Liverpool, ENGLAND. SEP, 2017.