3 papers
physics.comp-ph2025
The uniqueness of inverse scattering problems, reciprocity principles, and nonradiating sources related to low-signature structures
Johan Helsing, Anders Karlsson
This paper is about perfectly electrically conducting structures designed to produce negligible scattered power when exposed to a time-harmonic plane electromagnetic wave. The stru…
physics.comp-ph2023
Design of perfectly conducting objects that are invisible to an incident plane wave
Johan Helsing, Shidong Jiang, Anders Karlsson
This work concerns the design of perfectly conducting objects that are invisible to an incident transverse magnetic plane wave. The object in question is a finite planar waveguide…
physics.comp-ph2018
Physical-density integral equation methods for scattering from multi-dielectric cylinders
Johan Helsing, Anders Karlsson
An integral equation-based numerical method for scattering from multi-dielectric cylinders is presented. Electromagnetic fields are represented via layer potentials in terms of sur…