A low-frequency stable, excitation agnostic discretization of the right-hand side for the electric field integral equation on multiply-connected geometries

B Hofmann, TF Eibert, FP Andriulli… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In order to accurately compute scattered and radiated fields in the presence of arbitrary
excitations, a low-frequency stable discretization of the right-hand side (RHS) of a quasi …

An excitation-aware and self-adaptive frequency normalization for low-frequency stabilized electric field integral equation formulations

B Hofmann, TF Eibert, FP Andriulli… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The accurate solution of quasi-Helmholtz decomposed electric field integral equations
(EFIEs) in the presence of arbitrary excitations is addressed: Depending on the specific …

Magnetic and combined field integral equations based on the quasi-Helmholtz projectors

A Merlini, Y Beghein, K Cools… - … on Antennas and …, 2020 - ieeexplore.ieee.org
Boundary integral equation methods for analyzing electromagnetic scattering phenomena
typically suffer from several of the following shortcomings: 1) ill-conditioning when the …

A DC stable and large-time step well-balanced TD-EFIE based on quasi-Helmholtz projectors

Y Beghein, K Cools, FP Andriulli - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
The marching-on-in-time (MOT) solution of the time-domain electric field integral equation
(TD-EFIE) has traditionally suffered from a number of issues, including the emergence of …

An accurate low-order discretization scheme for the identity operator in the magnetic field and combined field integral equations

J Kornprobst, TF Eibert - IEEE Transactions on Antennas and …, 2018 - ieeexplore.ieee.org
A new low-order discretization scheme for the identity operator in the magnetic field integral
equation (MFIE) is discussed. Its concept is derived from the weak-form representation of …

Low-frequency-stabilized electric field integral equation on topologically non-trivial geometries for arbitrary excitations

B Hofmann, TF Eibert, FP Andriulli… - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
The low-frequency preconditioned electric field integral equation (EFIE) based on quasi-
Helmholtz decompositions is widely used to determine the radiated or scattered field by a …

A Calderón multiplicative preconditioner for the electromagnetic Poincaré–Steklov operator of a heterogeneous domain with scattering applications

D Dobbelaere, D De Zutter, J Van Hese, J Sercu… - Journal of …, 2015 - Elsevier
In the context of hybrid formulations, the Poincaré–Steklov operator acting on traces of
solutions to the vector Helmholtz equation in a heterogeneous interior domain with a smooth …

A multitrace surface integral equation method for PEC/dielectric composite objects

R Zhao, P Li, J Hu, H Bagci - IEEE Antennas and Wireless …, 2021 - ieeexplore.ieee.org
The multitrace domain decomposition surface integral equation (MT-DD-SIE) originally
developed to analyze electromagnetic scattering from dielectric composite objects is …

On a low-frequency and refinement stable PMCHWT integral equation leveraging the quasi-Helmholtz projectors

Y Beghein, R Mitharwal, K Cools… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Classical Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) formulations for modeling
radiation and scattering from penetrable objects suffer from ill-conditioning when the …

Low-frequency stable discretization of the electric field integral equation based on Poincaré's lemma

B Hofmann, TF Eibert, FP Andriulli… - 2021 IEEE International …, 2021 - ieeexplore.ieee.org
Integral equations become inaccurate in the low-frequency regime not only due to a low-
frequency breakdown (ie, growth of the condition number), but also due to catastrophic …