An Efficient Integral Equation Method for Full-Wave Analysis of Inhomogeneous Electromagnetic Surfaces With Connected Conductors

被引:2
|
作者
Gholami, Reza [1 ]
Nasen, Parinaz [2 ]
Triverio, Piero [2 ]
Hum, Sean Victor [2 ]
机构
[1] Mentor Graph Siemens EDA, Fremont, CA 94538 USA
[2] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Conductors; Integral equations; Mathematical models; Dielectrics; Boundary conditions; Electromagnetics; Sparse matrices; Domain decomposition method; electromagnetic (EM) surfaces; fast solvers; metasurfaces; reduced-order modeling; reflectarrays; surface integral equations (SIEs); EQUIVALENCE PRINCIPLE ALGORITHM; COMPLEX STRUCTURES; EIGENCURRENT APPROACH; SCATTERING; ARRAYS;
D O I
10.1109/TAP.2022.3145482
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
In this article, a generalized macromodeling approach is presented to simulate complex electromagnetic (EM) surfaces consisting of unit cells with connected conductors. Macromodels of each unit cell are produced by applying the equivalence principle on fictitious surfaces encapsulating them. Unit cells often consist of multiple dielectric layers and conductor traces, featuring multiscale structures. Challenges arise when a current-carrying conductor trace traverses the fictitious surface. Hence, a new method based on half Rao-Wilton-Glisson basis functions is proposed to accurately ensure the continuity of the surface currents and avoid singularities at the intersections. The accuracy of the proposed approach is validated by comparing the results with commercial solvers for different EM surfaces.
引用
收藏
页码:5647 / 5658
页数:12
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