Efficient computation of mixed potential dyadic Green´s functions for a 1D periodic array of line sources in layered media

Author

Valerio, Guido ; Wilton, Donald R. ; Jackson, David R. ; Galli, Alessandro

Author_Institution

Dept. of Electron. Eng., Sapienza Univ. of Rome, Rome, Italy

fYear

2009

fDate

14-18 Sept. 2009

Firstpage

152

Lastpage

155

Abstract

In this paper an original approach is described for the efficient computation of the mixed-potential scalar and dyadic Green´s functions for a one-dimensional (1D) periodic array of line sources embedded in a planar stratified structure. Suitable asymptotic extractions, corresponding to integrations in z of free-space Green´s functions, are performed on the slowly-converging spectral series. The extracted terms are summed back through the Ewald method, modified and optimized to efficiently deal with these new free-space terms.

Keywords

Green´s function methods; electromagnetic wave propagation; inhomogeneous media; 1D periodic array; Ewald method; free-space Green´s function; layered media; line sources; mixed potential dyadic Green´s function; mixed-potential scalar Green´s function; planar stratified structure; spectral series; Acceleration; Computational electromagnetics; Convergence; Embedded computing; Green´s function methods; Integral equations; Nonhomogeneous media; Optimization methods; Periodic structures; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications, 2009. ICEAA '09. International Conference on

Conference_Location

Torino

Print_ISBN

978-1-4244-3385-8

Electronic_ISBN

978-1-4244-3386-5

Type

conf

DOI

10.1109/ICEAA.2009.5297555

Filename

5297555