Low-Frequency-Stabilized Electric Field Integral Equation on Topologically Non-Trivial Geometries for Arbitrary Excitations

Bernd Hofmann, Thomas F. Eibert, Francesco P. Andriulli, Simon B. Adrian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

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 given structure over a wide frequency range. However, if the excitation source is not a plane wave but, for instance, a line current, the standard preconditioners cannot recover all current components required to accurately obtain the fields. In this work, we propose an adaptive frequency normalization scheme of the discretized system that overcomes this problem irrespective of the specific excitation and irrespective of the underlying topology of the structure. To this end, the appropriate scaling factors are derived solely based on the norms of the right-hand side (RHS) components. Numerical results demonstrate the importance of our approach to obtain accurate results.

Original languageEnglish
Title of host publication2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1938-1939
Number of pages2
ISBN (Electronic)9781665496582
DOIs
StatePublished - 2022
Event2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Denver, United States
Duration: 10 Jul 202215 Jul 2022

Publication series

Name2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings

Conference

Conference2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022
Country/TerritoryUnited States
CityDenver
Period10/07/2215/07/22

Fingerprint

Dive into the research topics of 'Low-Frequency-Stabilized Electric Field Integral Equation on Topologically Non-Trivial Geometries for Arbitrary Excitations'. Together they form a unique fingerprint.

Cite this