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Full-Wave Analysis of H-Plane Waveguide Junction Loaded with Metallic Posts

机译:带有金属桩的H平面波导结的全波分析

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摘要

A hybrid method that combines moment method and mode matching technique is presented to study H-PIane waveguide discontinuity loaded with metallic posts at the junction of two waveguides. By expanding Eigen modes in waveguides, applying continuity of tangential fields at the discontinuity and finally nulling the tangential electric field on the post surface, a system of algebraic equations is solved to obtain current distribution on the posts and consequently scattering parameters of the structure. Then, as an application, an in-line dual-mode rectangular waveguide bandpass filter is analyzed using the proposed method along with generalized scattering matrix method. The numerical results are in good agreement with existing full wave finite element method in high frequency structure simulator (HFSS) results and measurements.
机译:提出了一种结合矩量法和模式匹配技术的混合方法来研究在两个波导的交界处加载金属柱的H-PIane波导不连续性。通过扩展波导中的本征模,在不连续处应用切向场的连续性,并最终使立柱表面的切向电场无效,求解了一个代数方程组,以获取立柱上的电流分布并因此散射结构的参数。然后,作为一种应用,使用提出的方法和广义散射矩阵法对在线双模矩形波导带通滤波器进行了分析。数值结果与高频结构仿真器(HFSS)中现有的全波有限元方法的结果和测量结果吻合良好。

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