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Higher Order Basis Based Integral Equation Solver (HOBBIES) by Sioweng Ting, Magdalena Salazar-Palma, Weixin Zhao, Daniel Garcia Doñoro, Xunwang Zhao, T. K. Sarkar, Yu Zhang

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8

SOLVING ELECTROMAGNETIC FIELD PROBLEMS USING HOBBIES

8.0 SUMMARY

Modeling and simulation of basic electromagnetic (EM) field problems are introduced in this chapter. The most fundamental modeling problem in an EM simulation is to analyze metallic wires, surfaces, and wire-surface junctions. Therefore illustrative examples are first presented at the beginning of this chapter, related to these topics. Then modeling of dielectric structures are illustrated, followed by simulation examples dealing with composite structures consisting of both metallic and dielectric bodies. For the case of pure dielectric structures, homogeneous, inhomogeneous, and multilayered dielectric structures are discussed.

Examples using different impedance loadings are also demonstrated in this chapter, which involves use of both distributed and concentrated loadings. Real material properties of wires and metallic surfaces (e.g., finite conductivity) can be taken into account by adding distributed loadings over the wires and surfaces, or by treating the structure as a lossy dielectric. Lumped elements inserted at the junction of a wire with other wires or surfaces can be modeled by concentrated loadings.

Anti-symmetry, symmetry, perfect electric conductor (PEC), and perfect magnetic conductor (PMC) settings are also presented. Symmetry properties can be used to speed up the analysis if both the geometry and the excitation are symmetrical or anti-symmetrical with respect to the same basic coordinate plane ...

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