叙述了一种可用于Ku频段微波接收机的谐波混频器的原理、设计、仿真及实验结果.该混频器主要由Lange耦合器、输入、输出滤波器以及匹配网络等部分组成.实验结果表明,在14.00～14.25GHz的频率范围内变频损耗的实测曲线与仿真曲线基本吻合,带内幅度平坦度优于1dB,驻波比小于2.

This paper describes the principle, design, simulation and experiment results of a harmonic mixer used for Ku-band microwave receiver. The mixer consists of a Lange coupler, an input filter, an output filter and matching networks etc. From the experiment results, it can be seen that the experiment curve of the conversion loss accords with the simulation curve basically in the 14. 00-14. 25GHz frequency region, the in-band flatness is less than 1 dB and the VSWR less than 2.

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