Singularity Cancellation for Accurate MoM Analysis of Periodic Planar Structures in Layered Media

被引：4

作者：

Adanir, Suleyman ^{[1
,2
]}

Alatan, Lale ^{[1
]}

机构：

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

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

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2020年 / 19卷 / 08期

关键词：

Periodic structures; Method of moments; Nonhomogeneous media; Green's function methods; Surface waves; Spectral analysis; Single photon emission computed tomography; Discrete complex image method (DCIM); Ewald transformation; method of moments (MOM); multilayered periodic Green's function (MPGF); periodic multilayered structure; singularity cancellation; GREENS-FUNCTION; NUMERICAL EVALUATION; ELECTROMAGNETIC SCATTERING; EFFICIENT CALCULATION; QUADRATURE; INTEGRATION; SURFACES;

D O I：

10.1109/LAWP.2020.2997798

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：

One of the singularity cancellation schemes proposed in the literature is applied to calculate singular integrals arising in the method of moments (MoM) analysis of 2-D periodic planar structures in multilayered media. Discrete complex image method is utilized for the accurate approximation of Green's function which also makes possible the application of the Ewald transformation for the efficient computation of the series associated with the periodic structure. This approximation and transformation modifies the kernel of the integral appearing in the computation of the MoM matrix entries. Formulation of the problem for this new kernel is presented together with numerical results demonstrating the achieved accuracy.

引用

页码：1301 / 1305

页数：5

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