Stable and Accurate Marching-on-in-Time Solvers of Time Domain EFIE, MFIE, and CFIE Based on Quasi-Exact Integration Technique

被引：10

作者：

Wang, Xin ^{[1
]}

Shi, Yifei ^{[2
]}

Lu, Mingyu ^{[3
]}

Shanker, Balasubramaniam ^{[4
]}

Michielssen, Eric ^{[5
]}

Bagci, Hakan ^{[6
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Elect & Informat Engn, Nanjing 211106, Peoples R China

[2] Jiangsu Univ Technol, Dept Elect Engn, Changzhou 213000, Peoples R China

[3] West Virginia Univ Inst Technol, Dept Elect & Comp Engn, Beckley, WV 25801 USA

[4] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA

[5] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

[6] King Abdullah Univ Sci & Engn, Div Comp Elect & Math Sci & Engn, Thuwal 239556900, Saudi Arabia

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2021年 / 69卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Time-domain analysis; Numerical stability; Integral equations; Antennas; Stability criteria; Current density; Electromagnetic transient scattering; integral equations; moment methods; numerical stability; time-domain analysis;

D O I：

10.1109/TAP.2020.3026867

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 development of time-domain integral equation solvers with robust late-time stability properties has been a long-standing quest. Among the many methods that have been investigated, those leveraging quasi-exact integration techniques appear to be most successful. This article presents stable and accurate marching-on-in-time (MOT) solvers for time-domain electric, magnetic, and combined field integral equations (EFIE, MFIE, and CFIE) based on quasi-exact integration techniques. The novel MOT solvers exhibit excellent stability while yielding highly accurate results, as demonstrated by various numerical examples. In addition, the solvers' excellent stability and accuracy properties are used to examine spurious modes encountered when time-domain integral equations are applied to closed surfaces. It is demonstrated that MOT solutions to the time domain EFIE and MFIE often are polluted by spurious modes at the cavity's resonant frequencies whereas those of the CFIE solver are devoid of such contamination.

引用

页码：2218 / 2229

页数：12