MAIN BEAM EFFICIENCY OF MICROWAVE RADIOMETER ANTENNAS ON “SZ-4” SPACESHIP
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摘要: 参照反射面天线主波束效率估计的简易计算公式,对“神舟四号”（SZ-4）飞船辐射计天线的主波束效率进行了具体估算,给出了计算流程和计算结果.计算表明,该辐射计天线在6.6 GHz,19.35 GHz,23.8 GHz和37 GHz 4个频段上的波束效率分别为89％,91.24％,92.91％和94.87％,并经过了在轨飞行验证.Abstract: Based on a simple formula for calculating the main beam efficiency presented in Ref.[1], the main beam efficiency calculation is performed for multi-band microwave radiometer antenna boarded on "SZ-4" spaceship. The calculation shows that the main beam efficiencies at 6.6, 19.35, 23.8 and 37 GHz are 89%, 91.24%, 92.91% and 94.87%, respectively.
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