Characteristic Mode Analysis for Inhomogeneous Media

Di Wu; Qi Wu; Chunliang Dai; Peng Zhang

doi:10.1109/CAMA56352.2022.10002618

Characteristic Mode Analysis for Inhomogeneous Media

Di Wu^*
, Qi Wu
, Chunliang Dai
, Peng Zhang

^*Corresponding author for this work

School of Electronic and Information Engineering

Beihang University
Shenyang Aircraft Design and Research Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This paper considers the characteristic mode analysis (CMA) of inhomogeneous media. The proposed method adopts volume current density as unknows and formulates a volume integral equation (VIE). Half-SWG and SWG basis functions are chosen to expand the volume current density, since it is discontinuous at interface between different media. The method of moment (MoM) with Galerkin scheme is used to discretize the integral equation. The obtained impedance matrix is composed of a diagonally-dominant Gram matrix and a scattering matrix which is free from the influence of media parameters. This whole operator can be approximately viewed as symmetric, which guarantees a good orthogonality of radiation modes. Numerical results are presented to validate the feasibility as well as the accuracy of this approach.

Original language	English
Title of host publication	2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022
Publisher	Institute of Electrical and Electronics Engineers
ISBN (Electronic)	9781665490375
DOIs	https://doi.org/10.1109/CAMA56352.2022.10002618
State	Published - 2022
Event	2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022 - Guangzhou, China Duration: 14 Dec 2022 → 17 Dec 2022

Publication series

Name	IEEE Conference on Antenna Measurements and Applications, CAMA
Volume	2022-December
ISSN (Print)	2474-1760
ISSN (Electronic)	2643-6795

Conference

Conference	2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022
Country/Territory	China
City	Guangzhou
Period	14/12/22 → 17/12/22

Keywords

Characteristic mode analysis
inhomogeneous media
volume integral equation

Access to Document

10.1109/CAMA56352.2022.10002618

Cite this

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title = "Characteristic Mode Analysis for Inhomogeneous Media",

abstract = "This paper considers the characteristic mode analysis (CMA) of inhomogeneous media. The proposed method adopts volume current density as unknows and formulates a volume integral equation (VIE). Half-SWG and SWG basis functions are chosen to expand the volume current density, since it is discontinuous at interface between different media. The method of moment (MoM) with Galerkin scheme is used to discretize the integral equation. The obtained impedance matrix is composed of a diagonally-dominant Gram matrix and a scattering matrix which is free from the influence of media parameters. This whole operator can be approximately viewed as symmetric, which guarantees a good orthogonality of radiation modes. Numerical results are presented to validate the feasibility as well as the accuracy of this approach.",

keywords = "Characteristic mode analysis, inhomogeneous media, volume integral equation",

author = "Di Wu and Qi Wu and Chunliang Dai and Peng Zhang",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022 ; Conference date: 14-12-2022 Through 17-12-2022",

year = "2022",

doi = "10.1109/CAMA56352.2022.10002618",

language = "英语",

series = "IEEE Conference on Antenna Measurements and Applications, CAMA",

publisher = "Institute of Electrical and Electronics Engineers",

booktitle = "2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022",

address = "美国",

}

Wu, D, Wu, Q, Dai, C & Zhang, P 2022, Characteristic Mode Analysis for Inhomogeneous Media. in 2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022. IEEE Conference on Antenna Measurements and Applications, CAMA, vol. 2022-December, Institute of Electrical and Electronics Engineers, 2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022, Guangzhou, China, 14/12/22. https://doi.org/10.1109/CAMA56352.2022.10002618

Characteristic Mode Analysis for Inhomogeneous Media. / Wu, Di; Wu, Qi; Dai, Chunliang et al.
2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022. Institute of Electrical and Electronics Engineers, 2022. (IEEE Conference on Antenna Measurements and Applications, CAMA; Vol. 2022-December).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Characteristic Mode Analysis for Inhomogeneous Media

AU - Wu, Di

AU - Wu, Qi

AU - Dai, Chunliang

AU - Zhang, Peng

PY - 2022

Y1 - 2022

N2 - This paper considers the characteristic mode analysis (CMA) of inhomogeneous media. The proposed method adopts volume current density as unknows and formulates a volume integral equation (VIE). Half-SWG and SWG basis functions are chosen to expand the volume current density, since it is discontinuous at interface between different media. The method of moment (MoM) with Galerkin scheme is used to discretize the integral equation. The obtained impedance matrix is composed of a diagonally-dominant Gram matrix and a scattering matrix which is free from the influence of media parameters. This whole operator can be approximately viewed as symmetric, which guarantees a good orthogonality of radiation modes. Numerical results are presented to validate the feasibility as well as the accuracy of this approach.

AB - This paper considers the characteristic mode analysis (CMA) of inhomogeneous media. The proposed method adopts volume current density as unknows and formulates a volume integral equation (VIE). Half-SWG and SWG basis functions are chosen to expand the volume current density, since it is discontinuous at interface between different media. The method of moment (MoM) with Galerkin scheme is used to discretize the integral equation. The obtained impedance matrix is composed of a diagonally-dominant Gram matrix and a scattering matrix which is free from the influence of media parameters. This whole operator can be approximately viewed as symmetric, which guarantees a good orthogonality of radiation modes. Numerical results are presented to validate the feasibility as well as the accuracy of this approach.

KW - Characteristic mode analysis

KW - inhomogeneous media

KW - volume integral equation

UR - https://www.scopus.com/pages/publications/85148286531

U2 - 10.1109/CAMA56352.2022.10002618

DO - 10.1109/CAMA56352.2022.10002618

M3 - 会议稿件

AN - SCOPUS:85148286531

T3 - IEEE Conference on Antenna Measurements and Applications, CAMA

BT - 2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022

PB - Institute of Electrical and Electronics Engineers

T2 - 2022 IEEE Conference on Antenna Measurements and Applications, CAMA 2022

Y2 - 14 December 2022 through 17 December 2022

ER -

Characteristic Mode Analysis for Inhomogeneous Media

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