矩形波导宽壁复合缝隙耦合器的MPSTD算法分析

姜永金; 杨虎; 毛钧杰

doi:10.3724/SP.J.1146.2005.01304

矩形波导宽壁复合缝隙耦合器的MPSTD算法分析

doi: 10.3724/SP.J.1146.2005.01304

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出版历程
- 收稿日期: 2005-10-17
- 修回日期: 2006-05-08
- 刊出日期: 2007-06-19

Analysis of a Compound Slot Coupler in Broad Wall of Rectangular Waveguide Using Multidomain Pseudospectral Time-Domain Algorithm

摘要

摘要: 本文首先研究了多区域时域伪谱(MPSTD)算法应用于波导问题分析时的时域激励源设置方法。然后在此基础上，将MPSTD算法应用于矩形波导宽壁复合缝隙耦合器的分析。针对X波段半高波导，得出了耦合缝隙在不同高度、不同偏置和不同倾斜角度下的谐振长度和散射参量特性。仿真结果表明，将MPSTD算法应用于波导缝隙耦合器的分析，具有较高的计算效率和计算精度。同时该问题的MPSTD分析也拓展了MPSTD算法的应用领域，为准确、快速分析复杂波导问题的宽频时域特性提供了一种思路。
- 多区域时域伪谱算法;激励源;复合缝隙;缝隙耦合器
Abstract: The setting method of time-domain excitation sources is studied in this paper in order to analyzing the characteristic of waveguide by using the Multidomain PseudoSpectral Time-Domain (MPSTD) algorithm. Based on it, a rigorous analysis for a compound slot coupler by using the MPSTD algorithm is presented. Coupling slot characteristics of half-height X-band waveguide are obtained, including the resonant length and scattering parameters in different height, offsets, and tilt angles of the slot. All numerical results indicate the MPSTD is more accurate and efficient to analyze the slot coupler. And it extends application fields of MPSTD and offers a scheme for analyzing the broad-band characteristic of complex waveguide accurately and efficiently.

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