A two-level plane wave time-domain algorithm for fast analysis of EMC/EMI problems

Author

Aygün, Kemal ; Shanker, Balasubramaniam ; Ergin, A. Arif ; Michielssen, Eric

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ. at Urbana-Champaign, Urbana, IL, USA

Volume

44

Issue

1

fYear

2002

fDate

2/1/2002 12:00:00 AM

Firstpage

152

Lastpage

164

Abstract

A fast time-domain integral equation (TE)-based scheme for analyzing transient electromagnetic compatibility and interference (EMC/EMI) problems involving printed circuit boards and cables/connectors that reside in shielding enclosures, is presented. The proposed algorithm hybridizes a classical marching-on-in-time (MOT) solver for analyzing radiation from perfect electrically conducting (PEC) surface/wire geometries with the previously introduced two-level plane wave time-domain (PWTD) algorithm. The accuracy and efficacy of the resulting MOT-PWTD algorithm are validated via analysis of the radiation characteristics of a number of structures including a loaded motherboard that resides in a chassis. For a problem with N_s spatial and N_T temporal unknowns, the computational complexity of the two-level MOT-PWTD algorithm scales as O(N_TN_S^1.5 log N_S) as opposed to O(N_TN_S²) for a classical MOT scheme

Keywords

cables (electric); computational complexity; electric connectors; electrical engineering computing; electromagnetic compatibility; electromagnetic interference; electromagnetic shielding; integral equations; packaging; printed circuits; time-domain analysis; PEC surface/wire geometries; cables/connectors; computational complexity; electromagnetic compatibility; electromagnetic interference; fast time-domain integral equation; marching-on-in-time solver; motherboard; perfect electrically conducting surface/wire geometries; printed circuit boards; radiation characteristics; shielding enclosures; transient EMC/EMI problems; two-level plane wave time-domain algorithm; Algorithm design and analysis; Electromagnetic analysis; Electromagnetic compatibility; Electromagnetic compatibility and interference; Electromagnetic interference; Electromagnetic transients; Integral equations; Printed circuits; Time domain analysis; Transient analysis;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.990722

Filename

990722