An x-band waveguide orthomode transducer with integrated filters
An x-band waveguide orthomode transducer with integrated filters
复制标题
具有集成滤波器的 x 波段波导正模传感器
DOI：
10.1002/mop.31986
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发表时间：
2019
影响因子：
1.5
通讯作者：
Gao Y
中科院分区：
文献类型：
--
作者：
Gao Y
本文介绍了一种新型的集成滤波器的波导正交模换能器。基于谐振器的带通滤波器用于两个通道，形成双通道OMT。例如，双通道嵌入式OMT被设计为具有9.9 - 10.1 GHz和10.9 - 11.1 GHz的通道。两个通道均实现了回波损耗为20 dB的良好滤波器响应。由于滤波元件和传输零点，上、下频段隔离至−80 dB。这种新型多功能紧凑型滤波器-OMT设计可减小尺寸并改善带间隔离。一个数控加工波导OMT的演示和其性能进行了验证与电磁波（EM）的模拟和测量结果之间的良好协议。
This letter presents a novel waveguide orthomode transducer (OMT) with integrated filters. Resonator‐based bandpass filters are used for the two channels forming a duplexing OMT. As an example, a two‐channel duplexing OMT is designed with channels at 9.9‐10.1 GHz and 10.9‐11.1 GHz. A good filter response with 20 dB return loss is achieved for both the channels. The upper and lower bands are isolated to −80 dB due to the filtering elements and a transmission zero. This new multifunction compact filter‐OMT design leads to the size reduction and improved inter‐band isolation. A CNC machined waveguide OMT is demonstrated and its performance is verified with excellent agreement between the electromagnetic wave (EM) simulation and measured results.