Unified Theory of Characteristic Modes: Part II -- Tracking, Losses, and FEM Evaluation
arXiv:2110.02106 · doi:10.1109/TAP.2022.3209264
Abstract
This is the second component of a two-part paper dealing with a unification of characteristic mode decomposition. This second part addresses modal tracking and losses and presents several numerical examples for both surface- and volume-based method-of-moment formulations. A new tracking algorithm based on algebraic properties of the transition matrix is developed, achieving excellent precision and requiring a very low number of frequency samples as compared to procedures previously reported in the literature. The transition matrix is further utilized to show that characteristic mode decomposition of lossy objects fails to deliver orthogonal far fields and to demonstrate how characteristic modes can be evaluated using the finite element method.
12 pages, 54 references, 10 figures. Portions of this previously appeared as arXiv:2109.00063v1, which has been split for publication. For Part 1, see arXiv:2109.00063v2
References in corpus (2)
Cited by in corpus (7)
- Unified Theory of Characteristic Modes: Part I -- Fundamentals
- Characteristic Mode Decomposition Using the Scattering Dyadic in Arbitrary Full-Wave Solvers
- Scattering-Based Characteristic Mode Theory for Structures in Arbitrary Background: Computation, Benchmarks, and Applications
- On Adaptive Frequency Sampling for Data-driven Model Order Reduction Applied to Antenna Responses
- Iterative Calculation of Characteristic Modes Using Arbitrary Full-wave Solvers
- Theory and Computation of Substructure Characteristic Modes
- Characteristic Modes of Nonreciprocal Structures