Efficient analysis of sheets with nonzero thickness

Autor: Úbeda Farré, Eduard, Rius Casals, Juan Manuel
Přispěvatelé: Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
DOI: 10.1109/ACES53325.2021.00159
Popis: The conventional scattering analysis of perfectly conducting plates neglects the scattering contribution of the rim in the discretization of the Electric-Field Integral Equation. This so-called thin-plate scheme manages many less unknowns than the full approach, arising from modelling the whole plate, with acceptable accuracy in many practical applications. A recent approach, so-called thick-plate, has proved to show similar accuracy as the full scheme, also in those cases where the thin-surface fails; namely, the scattering analysis of thick enough plates, especially under oblique incidences, with low grazing angles. In this paper, we reveal how the thick-plate scheme shows improved computational times, especially in large scale computations, as compared to the full approach. Also, we discuss how the thick-plate analysis is amenable to parallelization, thereby leading to computational times comparable with the thin-surface approach. This work was supported by FEDER and the "Spanish Plan Estatal de Investigación Científica y Técnica y de Innovación", under projects: TEC2017-84817-C2-2-R/ AEI/10.13039/501100011033, TEC2016-78028-C3-1-P/AEI/10.1 3039/501100011033, PID2019-107885GB-C31/AEI/10.13039/501100011033 and the Unidad de Excelencia Maria de Maeztu MDM-2016-0600/AEI/10.13039/501100011033, which is financed by the Agencia Estatal de Investigación, Spain, and Catalan Research Group 2017 SGR 219.
Databáze: OpenAIRE