摘要
该文设计了共用一个物理孔径的双频双极化的微带天线。天线采用了可折叠的充气式聚酯薄膜介质结构,有较小的介电常数,较大的相对带宽。天线采用孔径耦合馈电方式,对L波段和S波段的馈电线路可各自优化。讨论了此天线的交叉极化特性和阻抗匹配,计算了天线的各个参数和天线用于星载SAR时的系统性能指标。
The dual-frequency and dual-polarization microstrip antenna for space-borne SAR application is presented. The antenna uses a single aperture, and folded configuration with aired plastic film. The patch antenna has low substrate dielectric constant and wide bandwidth. The cross-polarization isolation and impedance matching are discussed. The characteristics of the space-borne SARs using this light configuration antenna are analyzed.
出处
《电子与信息学报》
EI
CSCD
北大核心
2002年第12期1947-1954,共8页
Journal of Electronics & Information Technology
基金
国家自然科学基金(NFNS 69896250-2)
关键词
星载SAR
双频双极化天线
微带天线
单口面
合成孔径雷达
Microstrip antenna, Single aperture dual-frequency and dnal-polarization antenna, Space-borne SAR
