摘要
针对机载合成孔径雷达天线小型化、高增益和宽频带的问题,提出一种棱柱面雷达天线的新馈源.该馈源基于共面波导工艺,将薄金属偶极板印制在介质衬底两侧,完成了二元"H"形天线阵的设计.通过结构仿真和优化设计,使该天线阵在超高频频段的带宽达到2 2倍频程;带内驻波小于1 85;中心频率处的增益大于9 60dBi.仿真结果表明,该天线阵能构成宽带UHF频段雷达天线的新馈源.
Aiming at spreading bandwidth, miniaturization and high-gain of the air-borne SAR antenna, this paper puts forward a new type of prism radar antenna, whose feed based on the technics of CPW is a two-component Pi-shaped antenna array printed by doubble plane overlap. The frequency bandwidth is the 2.2 times the frequency; the VSWR within the bandwidth is less than 1.85 and the gain at the central frequency is more than 9 dBi, which are found by means of the High-Frequency Structure Simulator and the larruping designed. The VSWR and the radiate direction plot by simulation and test are given.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2004年第2期234-237,共4页
Journal of Xidian University
基金
国家自然科学基金资助项目(69931030)
