On characteristic eigenvalues of complex media in surface integral formulations
(2017) In IEEE Antennas and Wireless Propagation Letters 16(1). p.1820-1823- Abstract
- Although surface integral equations (SIEs) have been extensively used in solving electromagnetic problems of penetrable objects, there are still open issues relating to their application to the Theory of Characteristic Modes. This work demonstrates that when an SIE is used to solve for the characteristic modes (CMs) of a dielectric or magnetic object, the resulting eigenvalues are unrelated to the reactive power of the object, unlike the eigenvalues of perfect electric conductors. However, it is proposed that the classical eigenvalues, which provide useful physical insights, can be extracted from the SIE CM solution using Poynting’s theorem. Large discrepancies between the SIE CM eigenvalues and the proposed eigenvalues, as well as... (More)
- Although surface integral equations (SIEs) have been extensively used in solving electromagnetic problems of penetrable objects, there are still open issues relating to their application to the Theory of Characteristic Modes. This work demonstrates that when an SIE is used to solve for the characteristic modes (CMs) of a dielectric or magnetic object, the resulting eigenvalues are unrelated to the reactive power of the object, unlike the eigenvalues of perfect electric conductors. However, it is proposed that the classical eigenvalues, which provide useful physical insights, can be extracted from the SIE CM solution using Poynting’s theorem. Large discrepancies between the SIE CM eigenvalues and the proposed eigenvalues, as well as eigenvalue-derived characteristic quantities, are highlighted using a numerical example. The modal resonances as predicted by the proposed eigenvalues closely match those obtained for natural resonance modes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/0f258e66-76d8-43b6-9ed3-b23f35fc34a8
- author
- Miers, Zachary LU and Lau, Buon Kiong LU
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- in
- IEEE Antennas and Wireless Propagation Letters
- volume
- 16
- issue
- 1
- pages
- 4 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85028328421
- wos:000412725900021
- ISSN
- 1548-5757
- DOI
- 10.1109/LAWP.2017.2681681
- project
- Systematic Antenna Design Using the Theory of Characteristic Modes
- EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications
- ELLIIT LU P01: 5G Wireless
- language
- English
- LU publication?
- yes
- id
- 0f258e66-76d8-43b6-9ed3-b23f35fc34a8
- date added to LUP
- 2017-03-11 23:15:21
- date last changed
- 2022-05-10 06:44:08
@article{0f258e66-76d8-43b6-9ed3-b23f35fc34a8, abstract = {{Although surface integral equations (SIEs) have been extensively used in solving electromagnetic problems of penetrable objects, there are still open issues relating to their application to the Theory of Characteristic Modes. This work demonstrates that when an SIE is used to solve for the characteristic modes (CMs) of a dielectric or magnetic object, the resulting eigenvalues are unrelated to the reactive power of the object, unlike the eigenvalues of perfect electric conductors. However, it is proposed that the classical eigenvalues, which provide useful physical insights, can be extracted from the SIE CM solution using Poynting’s theorem. Large discrepancies between the SIE CM eigenvalues and the proposed eigenvalues, as well as eigenvalue-derived characteristic quantities, are highlighted using a numerical example. The modal resonances as predicted by the proposed eigenvalues closely match those obtained for natural resonance modes.}}, author = {{Miers, Zachary and Lau, Buon Kiong}}, issn = {{1548-5757}}, language = {{eng}}, number = {{1}}, pages = {{1820--1823}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Antennas and Wireless Propagation Letters}}, title = {{On characteristic eigenvalues of complex media in surface integral formulations}}, url = {{https://lup.lub.lu.se/search/files/22466947/miers_awpl_2017.pdf}}, doi = {{10.1109/LAWP.2017.2681681}}, volume = {{16}}, year = {{2017}}, }