Work

Toward The Design Of Preconditioners For The Global Multi-Trace Integral Equation For The Vector Potential

Year: 2024

Type: conference-paper

Abstract: A Calderón preconditioner for the global multi-trace PMCHWT-like formulation based on the vector potential is presented. The technique is applicable on multi-domain structures containing multi-material junctions comprising both PEC and homogeneous domains. The PEC structures are simulated with EFIE-like or MFIE-like techniques. The MFIE-like equations are tested with test functions defined on the dual mesh to obtain low frequency stable results. A domain diagonal, a trace-type diagonal and a rescaled diagonal preconditioner are compared, which all show an iteration count independent on the mesh density for a global multi-trace example.

Source: International Conference on Electromagnetics in Advanced Applications (ICEAA)

DOI: 10.1109/iceaa61917.2024.10701718

Authors: Paul Olyslager, Hendrik Rogier, Kristof Cools

Institution: Ghent University

Language: English

Topic: Electromagnetic Scattering and Analysis

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: European Research Council

OpenAlex ID: W4403211520