Reduction of cavity resonances in MoM solutions of EM problems

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Reduction of cavity resonances in MoM solutions of EM problems

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A common difficulty encountered in method of moments (MoM) solutions in electromagnetics is that of cavity resonance. The author presents a simple, automated technique to diagnose and correct spurious numerical results caused by such cavity resonances. An illustration of the application of this technique to a well known electromagnetic (EM) scattering problem is presented and discussed.

Inspec keywords: method of moments; singular value decomposition; electromagnetism; electromagnetic wave scattering; cavity resonators

Other keywords: EM problems; method of moments solutions; automated technique; MoM solutions; EM scattering problem; cavity resonances reduction

Subjects: Electric and magnetic fields; Electromagnetic wave propagation; Linear algebra (numerical analysis); Classical electromagnetism; Numerical approximation and analysis

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