Title :
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
fDate :
7/1/2010 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2010.2046830
