Integral Operator-Based Characteristic Mode Theory for Conducting, Material, and Lossy Structures

Pasi Yla-Oijala; Matti Kuosmanen; Henrik Wallen

doi:10.1109/TAP.2023.3286039

Integral Operator-Based Characteristic Mode Theory for Conducting, Material, and Lossy Structures

Pasi Yla-Oijala, Matti Kuosmanen, Henrik Wallen

Saab Finland Oy

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

1 Citation (Scopus)

126 Downloads (Pure)

Abstract

Integral operator-based theory of characteristic modes (CMs) for conducting, material, and lossy structures is reviewed. CMs are defined as solutions of a generalized eigenvalue equation (GEE). These GEEs are presented for various surface and volume integral operators and material structures. Interpretation of the characteristic eigenvalues in terms of electromagnetic power is studied based on the Mie expansion and integral operator formalism. Orthogonality and diagonalizing properties of the CMs are summarized. Challenges related to dielectric-magnetic bodies, lossy structures and spurious modes are discussed, as well as differences between the surface and volume operator approaches.

Original language	English
Pages (from-to)	37 - 49
Number of pages	13
Journal	IEEE Transactions on Antennas and Propagation
Volume	72
Issue number	1
Early online date	2023
DOIs	https://doi.org/10.1109/TAP.2023.3286039
Publication status	Published - 2023
MoE publication type	A1 Journal article-refereed

Keywords

Conductors
Eigenvalues and eigenfunctions
Electric fields
Electromagnetics
Integral equations
Magnetic resonance imaging
Surface impedance

Access to Document

10.1109/TAP.2023.3286039

Yla-oijala_et_al_Integral_operator-based_characteristic_mode_theory_for_conductingAccepted author manuscript, 455 KB

Cite this

@article{64282c847eb5427a98a70926230c5a39,

title = "Integral Operator-Based Characteristic Mode Theory for Conducting, Material, and Lossy Structures",

abstract = "Integral operator-based theory of characteristic modes (CMs) for conducting, material, and lossy structures is reviewed. CMs are defined as solutions of a generalized eigenvalue equation (GEE). These GEEs are presented for various surface and volume integral operators and material structures. Interpretation of the characteristic eigenvalues in terms of electromagnetic power is studied based on the Mie expansion and integral operator formalism. Orthogonality and diagonalizing properties of the CMs are summarized. Challenges related to dielectric-magnetic bodies, lossy structures and spurious modes are discussed, as well as differences between the surface and volume operator approaches.",

keywords = "Conductors, Eigenvalues and eigenfunctions, Electric fields, Electromagnetics, Integral equations, Magnetic resonance imaging, Surface impedance",

author = "Pasi Yla-Oijala and Matti Kuosmanen and Henrik Wallen",

note = "Publisher Copyright: IEEE",

year = "2023",

doi = "10.1109/TAP.2023.3286039",

language = "English",

volume = "72",

pages = "37 -- 49",

journal = "IEEE Transactions on Antennas and Propagation",

issn = "0018-926X",

publisher = "IEEE",

number = "1",

}

TY - JOUR

T1 - Integral Operator-Based Characteristic Mode Theory for Conducting, Material, and Lossy Structures

AU - Yla-Oijala, Pasi

AU - Kuosmanen, Matti

AU - Wallen, Henrik

N1 - Publisher Copyright: IEEE

PY - 2023

Y1 - 2023

N2 - Integral operator-based theory of characteristic modes (CMs) for conducting, material, and lossy structures is reviewed. CMs are defined as solutions of a generalized eigenvalue equation (GEE). These GEEs are presented for various surface and volume integral operators and material structures. Interpretation of the characteristic eigenvalues in terms of electromagnetic power is studied based on the Mie expansion and integral operator formalism. Orthogonality and diagonalizing properties of the CMs are summarized. Challenges related to dielectric-magnetic bodies, lossy structures and spurious modes are discussed, as well as differences between the surface and volume operator approaches.

AB - Integral operator-based theory of characteristic modes (CMs) for conducting, material, and lossy structures is reviewed. CMs are defined as solutions of a generalized eigenvalue equation (GEE). These GEEs are presented for various surface and volume integral operators and material structures. Interpretation of the characteristic eigenvalues in terms of electromagnetic power is studied based on the Mie expansion and integral operator formalism. Orthogonality and diagonalizing properties of the CMs are summarized. Challenges related to dielectric-magnetic bodies, lossy structures and spurious modes are discussed, as well as differences between the surface and volume operator approaches.

KW - Conductors

KW - Eigenvalues and eigenfunctions

KW - Electric fields

KW - Electromagnetics

KW - Integral equations

KW - Magnetic resonance imaging

KW - Surface impedance

UR - http://www.scopus.com/inward/record.url?scp=85163435981&partnerID=8YFLogxK

U2 - 10.1109/TAP.2023.3286039

DO - 10.1109/TAP.2023.3286039

M3 - Article

AN - SCOPUS:85163435981

SN - 0018-926X

VL - 72

SP - 37

EP - 49

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 1

ER -

Integral Operator-Based Characteristic Mode Theory for Conducting, Material, and Lossy Structures

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Aalto Electronics-ICT

Cite this

Integral Operator-Based Characteristic Mode Theory for Conducting, Material, and Lossy Structures

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Equipment

Aalto Electronics-ICT

Cite this