28 citations · 40 across the 7 of their papers we have counts for
7 papers
Fundamental Limits of Characteristic Mode Slopes
Johan Lundgren, Mats Gustafsson
Characteristic Mode analysis is a widely used technique in antenna design, providing insight into the fundamental electromagnetic properties of radiating structures. In this paper,…
Theory and Computation of Substructure Characteristic Modes
Mats Gustafsson, Lukas Jelinek, Miloslav Capek +2
The problem of substructure characteristic modes is developed using a scattering matrix-based formulation, generalizing subregion characteristic mode decomposition to arbitrary com…
Characteristic Modes of Nonreciprocal Structures
Niklas Wingren, Daniel Sjöberg, Mats Gustafsson +4
The scattering formulation of characteristic mode decomposition is utilized to extend modal analysis to lossless scatterers breaking time-reversal symmetry. This enables characteri…
Characteristic Modes of Frequency-Selective Surfaces and Metasurfaces from S-parameter Data
Kurt Schab, Frederick Chen, Lukas Jelinek +3
Characteristic modes of arbitrary two-dimensional periodic systems are analyzed using scattering parameter data. This approach bypasses the need for periodic integral equations and…
Iterative Calculation of Characteristic Modes Using Arbitrary Full-wave Solvers
Johan Lundgren, Kurt Schab, Miloslav Capek +2
An iterative algorithm is adopted to construct approximate representations of matrices describing the scattering properties of arbitrary objects. The method is based on the implici…
Characteristic Mode Decomposition Using the Scattering Dyadic in Arbitrary Full-Wave Solvers
Miloslav Capek, Johan Lundgren, Mats Gustafsson +2
Characteristic modes are formulated using the scattering dyadic, which maps incident plane waves to scattered far fields generated by an object of arbitrary material composition. N…
Fundamental bounds on transmission through periodically perforated metal screens with experimental validation
Andrei Ludvig-Osipov, Johan Lundgren, Casimir Ehrenborg +5
This paper presents a study of transmission through arrays of periodic sub-wavelength apertures. Fundamental limitations for this phenomenon are formulated as a sum rule, relating…