电波科学学报2018，Vol.33Issue(2)：149-155,7.DOI:10.13443/j.cjors.2017121101
低互耦星载相控阵天线设计
Design of a phased array with the lower mutual coupling for the satellite application
卓超 1张福顺 2武向文 1张洪银2
作者信息
- 1. 西安电子科技大学天线与微波技术重点实验室,西安710071
- 2. 中航富士达科技股份有限公司,西安710077
- 折叠
摘要
Abstract
Design of a phased array antenna with lower mutual coupling for the satellite application operating in Ku band is introduced in this paper.By loading the metal cavity around the array element,the mutual coupling effect can be reduced and then improve the scanning performance of the phased array antenna.With this method,the characteristics of phased array antenna with ±60° scanning in two dimensions are analyzed.To verify this design,5×5 subarray and 16×16 array are studied.The measured results show that the mutual coupling between the elements is less than-16dB.The array element has an impedance bandwidth (VSWR≤2) of 11％ (15.1-16.8 GHz).In addition,within the bandwidth of f0 ± 500 MHz,the E-plane of the radiation pattern has a 3dB beam-width of more than 113° and a 5 dB beam width of more than 122°,while the H-plane has a 3 dB beam-width of more than 98° and a 5 dB beam-width of more than 113°.Based on the simulation,a prototype of the 5 × 5 array antenna is fabricated herein.The measured results agree well with the simulated ones,which proves the effectiveness of the design.The beam width of the proposed element fully meets the requirement of a phased array antenna with a ± 60° scanning range and can be used in phased radar system.关键词
相控阵天线/低互耦/单元/星载Key words
phased array antenna/low mutual coupling/element/satellite application分类
信息技术与安全科学引用本文复制引用
卓超,张福顺,武向文,张洪银..低互耦星载相控阵天线设计[J].电波科学学报,2018,33(2):149-155,7.
