Characteristic Modes Analysis of Finite Periodic Array With Object Using Entire Domain Basis Function Method and ACA

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-01-10 DOI:10.1109/LAWP.2025.3527927

Zi-Wen Tong;Ping Du;Gang Zheng

引用次数: 0

Abstract

In this letter, the entire domain (ED) basis function method is applied to the modes analysis of the composite finite periodic array-object. To construct the ED basis functions, the modes analysis of the array cell and object are performed, respectively. The eigenvalues and eigencurrents are obtained. The ED bases on the cell and the object are constructed using a few eigencurrents. Then, the reduced generalized eigenvalue equation (GEE) based on the ED bases will be obtained. By solving the equation, the characteristic modes of the composite structure can be analyzed. To reduce the fill-in time of matrices in the GEE, the adaptive cross approximation is introduced. Numerical results validate the accuracy of the proposed method. Moreover, the CPU time is dramatically reduced.

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基于全域基函数法和ACA的有目标有限周期阵列特征模态分析

本文将全域基函数法应用于复合有限周期阵列-对象的模态分析。为了构造ED基函数，分别对阵列单元和对象进行模态分析。得到了特征值和特征电流。基于单元和对象的ED是使用几个特征电流构建的。然后，在ED基的基础上得到广义特征值方程（GEE）。通过求解该方程，可以分析复合材料结构的特征模态。为了减少矩阵的填充时间，引入了自适应交叉逼近。数值结果验证了该方法的准确性。而且，大大减少了CPU时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.