A Coupled PEC-TDS Surface Integral Equation Approach for Electromagnetic Scattering and Radiation From Composite Metallic and Thin Dielectric Objects

2006 ◽  
Vol 54 (11) ◽  
pp. 3511-3516 ◽  
Author(s):  
I-Ting Chiang ◽  
Weng Cho Chew
Keyword(s):  
Integral Equation ◽  
Electromagnetic Scattering ◽  
Equation Approach ◽  
Surface Integral ◽  
Surface Integral Equation ◽  
Integral Equation Approach ◽  
Dielectric Objects ◽  
Scattering And Radiation

A Modified Hybrid Integral Equation to Electromagnetic Scattering from Composite PEC-Dielectric Objects Containing Closed-Open PEC Junctions

2021 ◽  
Vol 36 (6) ◽  
pp. 642-649
Author(s):  
Jinbo Liu ◽  
Hongyang Chen ◽  
Hui Zhang ◽  
Jin Yuan ◽  
Zengrui Li
Keyword(s):  
Integral Equation ◽  
Electromagnetic Scattering ◽  
Surface Integral ◽  
Electric Conductor ◽  
Electric Field Integral Equation ◽  
Surface Integral Equation ◽  
Hybrid Integral ◽  
Fast Solution ◽  
Dielectric Objects ◽  
Field Integral

To efficiently analyze the electromagnetic scattering from composite perfect electric conductor (PEC)-dielectric objects with coexisting closed-open PEC junctions, a modified hybrid integral equation (HIE) is established as the surface integral equation (SIE) part of the volume surface integral equation (VSIE), which employs the combined field integral equation (CFIE) and the electric field integral equation (EFIE) on the closed and open PEC surfaces, respectively. Different from the traditional HIE modeled for the objects whose closed and open PEC surfaces are strictly separate, the modified HIE can be applied to the objects containing closed-open junctions. A matrix equation is obtained by using the Galerkin’s method of moments (MoM), which is augmented with the spherical harmonics expansion-based multilevel fast multipole algorithm (SE-MLFMA), improved by the mixed-potential representation and the triangle/tetrahedron-based grouping scheme. Because in the improved SE-MLFMA, the memory usage for storing the radiation patterns of basis functions is independent of the SIE type in the VSIE, it is highly appropriate for the fast solution of the VSIE that contains the HIE. Various numerical experiments demonstrate that during the calculation of composite objects containing closed-open PEC junctions, the application of the modified HIE in the VSIE can give reliable results with fast convergence speed.

Searching for Electrostatic Resonances in Metamaterials Using Surface Integral Equation Approach

PIERS Online ◽  
2007 ◽  
Vol 3 (1) ◽  
pp. 118-121 ◽  
Author(s):  
Ari H. Sihvola ◽  
P. Yla-Oijala ◽  
S. Jarvenpaa ◽  
M. Taskinen
Keyword(s):  
Integral Equation ◽  
Equation Approach ◽  
Surface Integral ◽  
Surface Integral Equation ◽  
Integral Equation Approach
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