Overview of Surface-Volume-Surface Electric Field Integral Equation Formulations for 3-D Composite Metal-Dielectric Objects

Gholami, Reza; Zheng, Shucheng

doi:10.23919/eucap48036.2020.9135784

Cited by 1 publication

(1 citation statement)

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“…Equivalent fictious electric and magnetic surface currents (e.g., polarization currents) can also be used in method of moments to model 3-D structures, as well as a combination of surface and volume polarization currents. For example, Gholami et al [7] used Rao-Wilton-Glisson (RWG) surface current basis functions [8] combined with volume tetrahedra basis functions to model scattering in free space and in layered, unshielded media, i.e., the layers extend laterally to infinity. The theory described in this article could be applied to a similar approach and may be the subject of future research.…”

Section: Introductionmentioning

confidence: 99%

Method of Moments Analysis of Arbitrary Structures in Shielded Layered Media

Rautio¹,

Thelen²

2021

IEEE Trans. Microwave Theory Techn.

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Method of moments analysis of planar multilayer circuits typically assumes that conductors are infinitely thin and only surface currents need be modeled. Modern fabrication techniques, especially for high-frequency integrated circuits, can easily create structures that require modeling volume current. We present here a complete volume current-based method of moments analysis of arbitrary structures embedded in shielded multilayer media. The volume rooftop, uniform via, and tapered via basis functions that we present are key for such an analysis. The embedding layered media is not meshed as it is automatically included in the Green's function. The required integrations (in six dimensions) of the Green's function have been evaluated analytically with full results presented as a two-dimensional infinite summation that is rapidly evaluated to full precision using the FFT algorithm. Planar circuits using thick metal are typically analyzed to high accuracy one to three orders of magnitude faster due to reduced subsection count.

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Section: Introductionmentioning

confidence: 99%