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本文介绍了基板集成波导(SIW)H平面T型双工器的严格模态分析.该分析基于用于波导T型结问题的经典耦合矩阵技术.H平面T型结不仅将两个SIW滤波器连接在一起,而且还用作两个SIW滤波器的公共端口和第一级之间的耦合结构.首先推导了H平面T型的设计方程,然后设计,加工并测试了一个工作在X波段的4阶原型双工器.双工器的实测通带中心频率分别为9.03和9.42 GHz.同时,测试结果与预测结果具有很好的一致性.
This article presents a rigorous modal analysis of the SIW H-plane T-diplexer based on the classical coupling matrix technique for waveguide T-junction problems. The H-plane T-junction not only incorporates two SIW filters Connected together and used as a coupling between the common port and the first stage of the two SIW filters.Firstly, the design equation of the H-plane T-type was deduced, and then the design, processing and testing of a work in the X-band 4th order prototype diplexer.The measured center frequency of the diplexer is 9.03 and 9.42 GHz respectively.At the same time, the test results are in good agreement with the prediction results.