A MULTILEVEL FORMULATION OF THE METHOD OF MOMENTS

被引：33

作者：

KALBASI, K ^{[1
]}

DEMAREST, KR ^{[1
]}

机构：

[1] UNIV KANSAS,DEPT ELECT & COMP ENGN,RADAR & REMOTE SENSING LAB,LAWRENCE,KS 66045

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1993年 / 41卷 / 05期

关键词：

D O I：

10.1109/8.222278

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：

The modeling of electromagnetic scattering and radiation problems using the method of moments (MoM) is limited to resonant frequencies because of the extensive computational requirements of solving large matrix equations. In this study, a multilevel formulation of MoM is presented which allows substantial computational savings and, thus, extends the application of MoM to higher frequencies. Using a hierarchy of discretization levels, the multilevel technique extracts different modal components of the solution by focusing on a specific portion of the spectrum of the solution at a given level. The fundamental features of this process for the MoM solution of the electric field integral equation (EFIE) are developed and implemented. This multilevel MoM allows the rapid evaluation of the current distributions on a variety of 2-D scatterers with thousands of unknowns in fewer than ten cycles and in fractions of the normal CPU times. The method is stable, fast, suitable for multiple excitations, and adaptable as a ''solve'' module for almost any MoM code.

引用

页码：589 / 599

页数：11

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