Abstract Miniaturizing the microwave circuits for micro-satellite platform has been one of the development trends in microwave remote sensing. A novel 89/118/166/183 GHz frequency dividing network is proposed in this paper which includes two stages: the first stage is an F-G band diplexer that separate 89/118 GHz signals from 166/183 GHz signals. The measured typical transmission loss is 1.5 dB from 83.75 to 124 GHz at one output port as well as 1dB from 141 to 190 GHz at another output port. The second stage contains two diplexers based on waveguide circuit to separate the signals further. The measured typical transmission loss is 0.5 dB for the 89/118 GHz diplexer and 1 dB for the 166/183 GHz diplexer. The above-mentioned frequency dividing network has a vast application prospect due to compact structure and good performance.

中文翻译：

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微卫星应用89/118/166/183GHz分频网络设计

摘要 微型卫星平台微波电路的小型化已成为微波遥感的发展趋势之一。本文提出了一种新型的 89/118/166/183 GHz 分频网络，它包括两个阶段：第一阶段是一个 FG 频段双工器，将 89/118 GHz 信号与 166/183 GHz 信号分离。测得的典型传输损耗在一个输出端口从 83.75 到 124 GHz 为 1.5 dB，在另一个输出端口从 141 到 190 GHz 为 1dB。第二级包含两个基于波导电路的双工器，以进一步分离信号。89/118 GHz 双工器测得的典型传输损耗为 0.5 dB，166/183 GHz 双工器为 1 dB。上述分频网络结构紧凑，性能优良，具有广阔的应用前景。