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本文总结了在31.4GHz 上,对1.5m 偏置双赋形反射面天线的理论和实验研究。经仔细测量,确信效率达84.5%,这在如此大小的反射面天线中是创纪录的。现在,对于较大的低噪声反射面天线系统,增益噪声温度比(G/T)改善2—3 dB,突破目前最高纪录的超低噪声地球站,且口面效率达到90%或更高看来是可以实现的。
This paper summarizes the theoretical and experimental studies on a 1.5 m biased dual shaped reflector antenna at 31.4 GHz. After careful measurement, it is believed that the efficiency of 84.5%, which is a record in this size of the reflector antenna. The gain-to-noise-to-temperature ratio (G / T) is now improved by 2-3 dB for larger, low-noise reflector antenna systems, breaking through the highest recorded ultralow noise earth station and achieving a face-to-face efficiency of 90% or more It is achievable.