Computation of the natural poles of an object in the frequency domain using the cauchy method

Woojin Lee, Tapan K. Sarkar, Hongsik Moon, Magdalena Salazar-Palma

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

A methodology for the computation of the natural poles of an object in the frequency domain is presented. This methodology is then applied to compute the natural poles for perfectly conducting objects (PEC) in the frequency domain and compare the results to those obtained using the usual late time response. The main advantage of the proposed method is that there is no need to differentiate between the early time and the late time response of the object because the Cauchy method is applied to extract the Singularity Expansion Method (SEM) poles directly in the frequency domain. Simulation examples are analyzed to illustrate the potential of this method.

Original languageEnglish (US)
Article number6307812
Pages (from-to)1137-1140
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume11
DOIs
StatePublished - Oct 29 2012

Keywords

  • Cauchy method
  • Matrix Pencil (MP) method
  • Singularity Expansion Method (SEM)
  • natural poles
  • resonance
  • scattered electromagnetic field

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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