Abstract
A novel implementation of discrete complex image method (DCIM) based on the Sommmerfeld branch cut is proposed to accurately capture the far-field behavior of the layered medium Green's function as a complement to the traditional DCIM. By contour deformation, the Green's function can be naturally decomposed into branch-cut integration (radiation modes) and pole contributions (guided modes). For branch-cut integration, matrix pencil method is applied, and the alternative Sommerfeld identity in terms of kz integration is utilized to get a closed-form solution. The guided modes are accounted for with a pole-searching algorithm. Both one-branch-cut and two-branch-cut cases are studied. Several numerical results are presented to validate this method. © 2011 IEEE.
Recommended Citation
Y. P. Chen et al., "A Novel Implementation Of Discrete Complex Image Method For Layered Medium Green's Function," IEEE Antennas and Wireless Propagation Letters, vol. 10, pp. 419 - 422, article no. 5765649, Institute of Electrical and Electronics Engineers, Jun 2011.
The definitive version is available at https://doi.org/10.1109/LAWP.2011.2152358
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Branch cut; discrete complex image method (DCIM); Green's function; layered medium; pole
International Standard Serial Number (ISSN)
1536-1225
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
03 Jun 2011
Comments
Glaucoma Research Foundation, Grant 711508