Comparison of Floquet Port Based Unit Cell Design and Characteristic Mode Analysis for Anomalous Reflecting Metasurfaces

authored by: Axel Hoffmann, Michael Ponschab, Mathias Pietzka, Lucas N. Ribeiro, Phillipp K. Gentner, Dirk Manteuffel
Abstract: A comparison of Floquet port-based design and Characteristic Mode Analysis (CMA) for anomalous reflecting metasurfaces is presented. Floquet port simulations of a unit cell are performed to realize the desired induced phase gradient over the surface. While this method is well established and implemented in commercial software, it offers little insight into the electromagnetics of the structure. Therefore, a CMA utilizing the Floquet theorem is linked to the structure analysis to give further insight into the current distribution of the unit cell. An example setup as well as computational results are provided to compare both methods. It is shown that the CMA method provides advanced analysis of the physical behavior of the reflecting metasurface, which helps to improve the design process.
Organisation(s): Institute of Microwave and Wireless Systems
External Organisation(s): Ericsson Antenna Technology Germany GmbH
Type: Conference contribution
Publication date: 2023
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Computer Networks and Communications, Hardware and Architecture, Instrumentation
Electronic version(s): https://doi.org/10.23919/EuCAP57121.2023.10132908 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{7825fe14781e49e4b475220e592cae40,
title = "Comparison of Floquet Port Based Unit Cell Design and Characteristic Mode Analysis for Anomalous Reflecting Metasurfaces",
abstract = "A comparison of Floquet port-based design and Characteristic Mode Analysis (CMA) for anomalous reflecting metasurfaces is presented. Floquet port simulations of a unit cell are performed to realize the desired induced phase gradient over the surface. While this method is well established and implemented in commercial software, it offers little insight into the electromagnetics of the structure. Therefore, a CMA utilizing the Floquet theorem is linked to the structure analysis to give further insight into the current distribution of the unit cell. An example setup as well as computational results are provided to compare both methods. It is shown that the CMA method provides advanced analysis of the physical behavior of the reflecting metasurface, which helps to improve the design process.",
keywords = "characteristic modes, computational electromagnetics, periodic surfaces, reflecting intelligent surfaces",
author = "Axel Hoffmann and Michael Ponschab and Mathias Pietzka and Ribeiro, {Lucas N.} and Gentner, {Phillipp K.} and Dirk Manteuffel",
note = "This work has been performed in the project ReMoTe under grant 16KIS1634, funded by the German Federal Ministry for Education and Research.; 2023 17th European Conference on Antennas and Propagation (EuCAP) ; Conference date: 26-03-2023 Through 31-03-2023",
year = "2023",
doi = "10.23919/EuCAP57121.2023.10132908",
language = "English",
isbn = "978-1-6654-7541-9",
booktitle = "17th European Conference on Antennas and Propagation, EuCAP 2023",
publisher = "IEEE",
url = "https://www.eucap2023.org/",
}