A New Method for Locating the Poles of Green´s Functions in a Lossless or Lossy Multilayered Medium

Author

Wang, Dao-Xiang ; Yung, Edward Kai-Ning ; Chen, Ru-Shan ; Bao, Jian

Author_Institution

Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China

Volume

58

Issue

7

fYear

2010

fDate

7/1/2010 12:00:00 AM

Firstpage

2295

Lastpage

2300

Abstract

A new method is presented to locate the poles of the Green´s functions for a general multilayered medium, whether lossy or lossless. The problem associated with the pole extraction is reduced to solve the contour integrals in the complex plane that are represented in terms of the spectral-domain transmission coefficients. With the help of Cauchy´s theorem, the proposed method can accurately and rapidly find all surface wave poles with a few contour integrals. The numerical examples are performed to show the efficiency of the method.

Keywords

Green´s function methods; absorbing media; integral equations; transmission line theory; Cauchy theorem; Green´s functions; contour integrals; lossy multilayered medium; spectral-domain transmission coefficients; surface wave pole extraction; Computer integrated manufacturing; Contracts; Dielectric losses; Green´s function methods; High performance computing; Integral equations; Microwave antennas; Millimeter wave circuits; Moment methods; Newton method; Permission; Slabs; Surface waves; General multilayered media; Green´s functions; surface wave poles;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2010.2046830

Filename

5439788