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Analysis of coding metasurfaces for incident radiation at oblique incidence angles

  • Radar cross section reducing (RCSR) metasurfaces or coding metasurfaces were primarily designed for normally incident radiation in the past. It is evident that the performance of coding metasurfaces for RCSR can be significantly improved by additional backscattering reduction of obliquely incident radiation, which requires a valid analytic conception tool. Here, we derive an analytic current density distribution model for the calculation of the backscatter far-field of obliquely incident radiation on a coding metasurface for RCSR. For demonstration, we devise and fabricate a metasurface for a working frequency of 10.66GHz and obtain good agreement between the measured, simulated, and analytically calculated backscatter far-fields. The metasurface significantly reduces backscattering for incidence angles between −40∘ and 40∘ in a spectral working range of approximately 1GHz.
Metadaten
Author:Jan KappaORCiD, Zinching DangORCiD, Dominik Sokoluk, Marco Rahm
URN (permanent link):urn:nbn:de:hbz:386-kluedo-58109
ISSN:2578-7519
Parent Title (English):OSA Continuum
Publisher:OSA
Document Type:Article
Language of publication:English
Publication Date:2019/06/26
Year of Publication:2019
Publishing Institute:Technische Universität Kaiserslautern
Date of the Publication (Server):2019/12/06
Issue:2019, 2 (7)
Number of page:9
Source:https://www.osapublishing.org/osac/abstract.cfm?uri=osac-2-7-2172
Faculties / Organisational entities:Fachbereich Elektrotechnik und Informationstechnik
DDC-Cassification:6 Technik, Medizin, angewandte Wissenschaften / 621.3 Elektrontechnik, Elektronik
Collections:Open-Access-Publikationsfonds
Licence (German):Zweitveröffentlichung