A Surface Integral Equation Formulation for Low-Frequency Scattering From a Composite Object

Yunhui Chu, Weng Cho Chew, Junsheng Zhao, Siyuan Chen

Research output: Contribution to journalArticle

Abstract

A surface integral equation formulation is derived for low-frequency scattering from a composite object. This formulation allows those algorithms for finding loop-tree basis on simple surfaces to be applied to the complicated interfaces of a composite object. By including the residue term in the K operator, the present formulation induces the interface boundary conditions automatically, and the resultant matrix equation can be solved directly without using the O(N2) number-of-unknown-reduction scheme. Numerical results validate that the algorithm is stable even at extremely low frequencies and for closely spaced structures.

Original languageEnglish (US)
Pages (from-to)2837-2844
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Volume51
Issue number10 II
DOIs
StatePublished - Oct 1 2003

Keywords

  • Chang
  • Composite object
  • Harrington
  • Loop-star
  • Loop-tree
  • Low frequency
  • Miller
  • Poggio
  • Tsai formulation (PMCHWT)
  • Wu

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A Surface Integral Equation Formulation for Low-Frequency Scattering From a Composite Object'. Together they form a unique fingerprint.

  • Cite this