Complete and Accurate Discrete Complex Image Approximation of Periodic Green's Function in Layered Media

被引：4

作者：

Adanir, Suleyman ^{[1
,2
]}

Alatan, Lale ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey

[2] Mil Elect Ind ASELSAN, TR-06800 Ankara, Turkey

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2014年 / 62卷 / 08期

关键词：

Discrete complex image method; Ewald transformation; Green's functions; multilayer periodic structures; EFFICIENT COMPUTATION; EWALD METHOD; 2-D; POLES; 1-D;

D O I：

10.1109/TAP.2014.2323087

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The periodic Green's functions (PGF) in layered media can be expressed as an infinite series in terms of the spectral domain Green's functions. The discrete complex image method (DCIM) can be used to approximate these spectral domain Green's functions. In this work, it is demonstrated that the complete and accurate DCIM approximation of the PGF is possible only when the DCIM approximation is obtained through the samples of the spectral domain Green's function along the real k(p) axis. This choice of sampling path requires the extraction of surface wave pole contributions prior to the application of DCIM. Different forms of the Ewald method are utilized to efficiently compute the infinite summations associated with the complex images and the contribution of surface wave poles.

引用

页码：4115 / 4121

页数：7

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