A new closed-form evaluation of layered medium Green´S function

Author

Chen, Yongpin P. ; Chew, Weng Cho ; Jiang, Lijun

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China

fYear

2011

fDate

3-8 July 2011

Firstpage

3211

Lastpage

3213

Abstract

A new closed-form evaluation of layered medium Green´s function is proposed in this paper. The discrete complex image method (DCIM) is extended to sampling along the Sommerfeld branch cut, to capture the far field interaction. Contour deformation technique is applied to decompose the Green´s function into radiation modes (branch cut integration) and guided modes (surface-wave poles). The matrix pencil method is implemented to get a closed-form solution, with the help of an alternative Sommerfeld identity. Numerical results are presented to demonstrate the accuracy of this method.

Keywords

Green´s function methods; antenna radiation patterns; integral equations; Sommerfeld branch cut; closed-form evaluation; contour deformation technique; discrete complex image method; far field interaction; layered medium Green´s function; matrix pencil method; surface-wave poles; Antennas and propagation; Atmospheric modeling; Closed-form solution; Electronic mail; Kernel; Robustness; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5997217

Filename

5997217