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Terahertz High-Gain Offset Reflector Antennas Using SiC and CFRP Material
Wang, Hongjian; Dong, Xingchao; Yi, Min; Xue, Fei; Liu, Yang; Liu, Guang; Dong, XC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing, Peoples R China.
作者部门微波遥感部
发表期刊IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
2017
卷号65期号:9页码:4443-4451
ISSN0018-926X
语种英语
关键词Dual Polarization Electroforming Silicon Carbide (Sic) Terahertz (Thz) High-gain Antenna Three-coordinate Test
摘要Two high-gain terahertz (THz) offset reflector antennas are proposed. The silicon carbide material and thermally stable carbon fiber-reinforced plastic are selected as reflectors for high specific stiffness and low thermal expansion coefficient which are helpful for space use. Dual polarization is achieved by introducing a wire-grid polarizer which can separate the two THz polarization waves provided by multimode horns fabricated in electroforming technology. Furthermore, three-coordinate test system and theodolites are employed to detect the surface error of dishes and alignment of antenna subsystem. The physical optics analysis based on the measured reflector surface data is introduced referring to the large aperture antenna patterns by virtue of its accuracy and high efficiency. The results of this novel method are compared to that of the near-field test. Measurements show that the sidelobe levels (SLLs) of the single polarization silicon-based reflector are below -32 dB while the gain is 55.3 dB at 330 GHz, and the dual polarization carbon fiber-reinforced plastic reflector antenna suppresses the SLLs to -28 and -29 dB in two principal planes while the gain is 57.2 dB at the same frequency, respectively. The good performances of the proposed antennas indicate the potential for the application of space THz radiometer.
收录类别SCI ; EI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6023
专题微波遥感部
通讯作者Dong, XC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing, Peoples R China.
推荐引用方式
GB/T 7714
Wang, Hongjian,Dong, Xingchao,Yi, Min,et al. Terahertz High-Gain Offset Reflector Antennas Using SiC and CFRP Material[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,2017,65(9):4443-4451.
APA Wang, Hongjian.,Dong, Xingchao.,Yi, Min.,Xue, Fei.,Liu, Yang.,...&Dong, XC .(2017).Terahertz High-Gain Offset Reflector Antennas Using SiC and CFRP Material.IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,65(9),4443-4451.
MLA Wang, Hongjian,et al."Terahertz High-Gain Offset Reflector Antennas Using SiC and CFRP Material".IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 65.9(2017):4443-4451.
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