电波科学学报2011，Vol.26Issue(6)：1170-1175,6.
一种新型宽带宽波束圆极化微带天线的设计
Design of a new circularly-polarized broadband microstrip antenna with broad beamwidth
摘要
Abstract
A new circularly-polarized broadband microstrip antenna with three feeds which can be used in satellite communications is designed.The proposed antenna can realize circularly-polarized radiation at 1500~1900 MHz.The feeding network adopts a one-three power divider which can increase the bandwidth of axial ratio and wide-angle axial ratio.The bandwidth is greatly increased by feeding network and the parasitic patch.The beamwidth is broadened by extending the size of dielectric substrate of antenna.The measured results show that the 62.5%（VSWR≤2） bandwidth and 33%（AR≤3 dB）axial ratio bandwidth are achieved respectively,which obtains the good performance of wide-band and broad beamwidth.关键词
圆极化/宽带/宽波束/三馈Key words
circular polarization/broadband/broad beamwidth/three-fed分类
信息技术与安全科学引用本文复制引用
钱祖平,刘宗全,冯卫华,倪为民..一种新型宽带宽波束圆极化微带天线的设计[J].电波科学学报,2011,26(6):1170-1175,6.基金项目
国家自然科学基金（NO.60872046）资助 （）
