一种C频段双频OMT设计

A Dual Frequency OMT in the C Band

在空间技术的发展过程中,为扩大通信容量对信道带宽提出了更高的要求。双频段正交模耦合器(OMT)为空间天线的重要组成部分,文章介绍了一种C频段双频正交模转换器(OMT)并给出了其工作原理,应用商用软件HFSS对OMT进行仿真计算,通过比对仿真值和测试值,发射频段VSWR优于1.3;接收频段VSWR优于1.25。获得了预期的结果。该类型OMT可广泛应用于通信卫星天线中。

This paper presents a dual frequency orthomode transducer(OMT)able to extract or combine two orthogonal linear polarizations in dual frequency with normal manufacturing process.The OMT looks similar to the well-known Turnstile junctions,it followed two diplexer is able to handle dual linear polarization.