Characteristic Modes of Nonreciprocal Systems
The scattering formulation of characteristic mode decomposition is utilized to extend the 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.
Authors
- Niklas Wingren (ORCID: https://orcid.org/0000-0001-6171-4363)
- Mats Gustafsson (ORCID: https://orcid.org/0000-0003-4362-5716)
- Johan Lundgren (ORCID: https://orcid.org/0000-0001-6989-301X)
- Daniel Sjöberg (ORCID: https://orcid.org/0000-0001-5912-7549)
- Lukáš Jelínek (ORCID: https://orcid.org/0000-0002-1163-9059)
- Kurt Schab (ORCID: https://orcid.org/0000-0002-4228-9856)
- Miloslav Čapek (ORCID: https://orcid.org/0000-0002-7442-889X)
Institutions
- Santa Clara University (US)
- Lund University (SE)
- Czech Technical University in Prague (CZ)
Publication Details
- Journal
- IEEE Antennas and Wireless Propagation Letters
- Published
- 2024-09-02
- DOI
- https://doi.org/10.1109/lawp.2024.3453211
- Primary Topic
- Elasticity and Wave Propagation
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Grantová Agentura České Republiky