【摘要】 提出一种新型共用口径L/C双波段双极化单层开孔式结构的合成孔径雷达(synthetic aperture radar,SAR)天线,这种新型结构旨在提高L/C双波段双极化共口径SAR天线中L波段的天线带宽.对天线进行仿真、加工和测试.测试结果表明,L波段的反射系数不大于-10 dB的相对带宽达到13.7%,C波段相对带宽达到17.0%.实验结果验证了新型结构的有效性.更多还原

【Abstract】 A novel L/C dual-band dual-polarized shared-aperture antenna with a single-layer perforated structure is proposed for synthetic aperture radar(SAR) applications.The aim is to broaden the impedance bandwidth in the lower L-band of the L/C shared-aperture SAR antenna.The antenna element has been simulated,fabricated and measured.The measurements show that the bandwidths,defined as reflection coefficient being less than or equal to-10 dB,is increased to 13.7% in the lower L-band,while that of the higher C-band reaches 17.0%.Experimental results have verified this design.更多还原