Combined Source Integral Equation-Based Theory of Characteristic Modes for Impenetrable Bodies

Pasi Ylä-Oijala; Seppo Järvenpää

doi:10.1109/TAP.2019.2893386

Combined Source Integral Equation-Based Theory of Characteristic Modes for Impenetrable Bodies

Pasi Ylä-Oijala^*, Seppo Järvenpää

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

3 Citations (Scopus)

Abstract

The theory of characteristic modes (TCM) based on the combined source integral operator (CSIO) is developed for perfect electric conductors and for impedance boundary condition. This formulation is similar to the one based on the combined field integral operator (CFIO), circumvents the interior resonance problem appearing in the electric field integral operator-based TCM. The eigenvalues obtained by the CSIO-based formulation agree well with the analytical and numerical CFIO-based solutions. However, the eigenvectors of the resonating modes computed with the CSIO-based approach are found to be corrupted at the internal resonance frequencies.

Original language	English
Article number	8616755
Pages (from-to)	2825-2828
Number of pages	4
Journal	IEEE Transactions on Antennas and Propagation
Volume	67
Issue number	4
DOIs	https://doi.org/10.1109/TAP.2019.2893386
Publication status	Published - 1 Apr 2019
MoE publication type	A1 Journal article-refereed

Keywords

Characteristic modes
combined source integral equation (CSIE)
impedance boundary condition (IBC)
perfect electric conductor (PEC)
spurious solutions

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10.1109/TAP.2019.2893386

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title = "Combined Source Integral Equation-Based Theory of Characteristic Modes for Impenetrable Bodies",

abstract = "The theory of characteristic modes (TCM) based on the combined source integral operator (CSIO) is developed for perfect electric conductors and for impedance boundary condition. This formulation is similar to the one based on the combined field integral operator (CFIO), circumvents the interior resonance problem appearing in the electric field integral operator-based TCM. The eigenvalues obtained by the CSIO-based formulation agree well with the analytical and numerical CFIO-based solutions. However, the eigenvectors of the resonating modes computed with the CSIO-based approach are found to be corrupted at the internal resonance frequencies.",

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AU - Järvenpää, Seppo

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N2 - The theory of characteristic modes (TCM) based on the combined source integral operator (CSIO) is developed for perfect electric conductors and for impedance boundary condition. This formulation is similar to the one based on the combined field integral operator (CFIO), circumvents the interior resonance problem appearing in the electric field integral operator-based TCM. The eigenvalues obtained by the CSIO-based formulation agree well with the analytical and numerical CFIO-based solutions. However, the eigenvectors of the resonating modes computed with the CSIO-based approach are found to be corrupted at the internal resonance frequencies.

AB - The theory of characteristic modes (TCM) based on the combined source integral operator (CSIO) is developed for perfect electric conductors and for impedance boundary condition. This formulation is similar to the one based on the combined field integral operator (CFIO), circumvents the interior resonance problem appearing in the electric field integral operator-based TCM. The eigenvalues obtained by the CSIO-based formulation agree well with the analytical and numerical CFIO-based solutions. However, the eigenvectors of the resonating modes computed with the CSIO-based approach are found to be corrupted at the internal resonance frequencies.

KW - Characteristic modes

KW - combined source integral equation (CSIE)

KW - impedance boundary condition (IBC)

KW - perfect electric conductor (PEC)

KW - spurious solutions

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JF - IEEE Transactions on Antennas and Propagation

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ER -

Combined Source Integral Equation-Based Theory of Characteristic Modes for Impenetrable Bodies

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Keywords

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