针对超高频机载合成孔径雷达天线小型化、高增益和宽频带的问题，分析了短背射天线缩小背腔的增益损失。
To meet the requirements of miniaturization, high gain and wideband of UHF antenna for aircraft SAR, the gain loss produced by narrowing back cavity of short back radiation antenna is analyzed.
调频连续波合成孔径雷达(SAR)是一种新体制的高分辨率成像雷达，具有体积小，重量轻，耗电少，造价低，分辨率高等优点，非常适合小型化sar的应用。
Frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) is a light-weight, cost-effective, high-resolution imaging radar, which is suitable for operation on a small flight platform.
调频连续波合成孔径雷达(SAR)是一种新体制的高分辨率成像雷达，具有体积小，重量轻，耗电少，造价低，分辨率高等优点，非常适合小型化sar的应用。
Frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) is a light-weight, cost-effective, high-resolution imaging radar, which is suitable for operation on a small flight platform.
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