Characteristic Modes of Nonreciprocal Systems
(2024) In IEEE Antennas and Wireless Propagation Letters 23(12). p.4483-4487- Abstract
The scattering formulation of characteristic mode decomposition is utilized to extend modal analysis to lossless scatterers breaking time-reversal symmetry. This enables characteristic modes analysis on devices containing gyrotropic or moving media. The resulting nonreciprocity introduces features not observed in reciprocal scenarios, such as asymmetric phase progression in characteristic far fields. These new phenomena are carefully discussed using examples of varying complexity. Indicators of nonreciprocity based on modal data are also introduced.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d909cfb9-ac2d-4b1d-b802-485f0acbc00a
- author
- Wingren, Niklas
LU
; Sjoberg, Daniel
LU
; Gustafsson, Mats LU
; Lundgren, Johan LU ; Capek, Miloslav LU ; Jelinek, Lukas and Schab, Kurt LU
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Antenna theory, characteristic modes, computational electromagnetics, eigenvalues and eigenfunctions, scattering
- in
- IEEE Antennas and Wireless Propagation Letters
- volume
- 23
- issue
- 12
- pages
- 4483 - 4487
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85203436400
- ISSN
- 1536-1225
- DOI
- 10.1109/LAWP.2024.3453211
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2002-2011 IEEE.
- id
- d909cfb9-ac2d-4b1d-b802-485f0acbc00a
- date added to LUP
- 2024-12-13 12:18:00
- date last changed
- 2025-04-04 15:03:29
@article{d909cfb9-ac2d-4b1d-b802-485f0acbc00a, abstract = {{<p>The scattering formulation of characteristic mode decomposition is utilized to extend modal analysis to lossless scatterers breaking time-reversal symmetry. This enables characteristic modes analysis on devices containing gyrotropic or moving media. The resulting nonreciprocity introduces features not observed in reciprocal scenarios, such as asymmetric phase progression in characteristic far fields. These new phenomena are carefully discussed using examples of varying complexity. Indicators of nonreciprocity based on modal data are also introduced.</p>}}, author = {{Wingren, Niklas and Sjoberg, Daniel and Gustafsson, Mats and Lundgren, Johan and Capek, Miloslav and Jelinek, Lukas and Schab, Kurt}}, issn = {{1536-1225}}, keywords = {{Antenna theory; characteristic modes; computational electromagnetics; eigenvalues and eigenfunctions; scattering}}, language = {{eng}}, number = {{12}}, pages = {{4483--4487}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Antennas and Wireless Propagation Letters}}, title = {{Characteristic Modes of Nonreciprocal Systems}}, url = {{http://dx.doi.org/10.1109/LAWP.2024.3453211}}, doi = {{10.1109/LAWP.2024.3453211}}, volume = {{23}}, year = {{2024}}, }