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 backradiation antenna is analyzed.
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。
2
More infrared radiation would be absorbed and reradiated back to the Earth's surface.
更多的红外辐射将被吸收并重新辐射回地球表面。
3
When conditions are hot, the ostrich erects them on its back, thus increasing the thickness of the barrier between solar radiation and the skin.