AN UNCONDITIONALLY STABLE FINITE-ELEMENT TIME-DOMAIN SOLUTION OF THE VECTOR WAVE-EQUATION

被引：169

作者：

GEDNEY, SD

NAVSARIWALA, U

机构：

[1] Department of Electrical Engineering, University of Kentucky, Lexington

来源：

IEEE MICROWAVE AND GUIDED WAVE LETTERS | 1995年 / 5卷 / 10期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/75.465046

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents an implicit finite element time-domain (FETD) solution of the time-dependent vector wave equation, The time-dependent formulation employs a time-integration method based on the Newmark-Beta method, A stability analysis is presented demonstrating that this leads to an unconditionally stable solution of the time-dependent vector wave equation, The advantage of this formulation is that the time step is no longer governed by the spatial discretization of the mesh, but rather by the spectral content of the time-dependent signal, A numerical example of a three-dimensional cavity resonator is presented studying the effects of the Newmark-beta parameters on the solution error. Optimal choices of parameters are derived based on this example.

引用

页码：332 / 334

页数：3

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