Cargando…
Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors
In this study, a broadband metasurface absorber composed of an optimal combination of copper tiles connected with four chip resistors is designed and experimentally verified. After fixing the locations of the chip resistors and setting their resistances to 100 [Formula: see text] , the genetic algor...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10095628/ https://www.ncbi.nlm.nih.gov/pubmed/37048986 http://dx.doi.org/10.3390/ma16072692 |
_version_ | 1785024129108279296 |
---|---|
author | Kim, Yongjune Lee, Jeong-Hae |
author_facet | Kim, Yongjune Lee, Jeong-Hae |
author_sort | Kim, Yongjune |
collection | PubMed |
description | In this study, a broadband metasurface absorber composed of an optimal combination of copper tiles connected with four chip resistors is designed and experimentally verified. After fixing the locations of the chip resistors and setting their resistances to 100 [Formula: see text] , the genetic algorithm (GA) is utilized to design the optimal copper tile pattern for broadband absorption. The optimal combination of the copper tiles is identified by determining the states of the square tile pairs between copper or air, depending on the one or zero states of the bit sequence created by GA, respectively. The full-wave simulation results of the optimized metasurface absorber confirmed a [Formula: see text] dB reflectance bandwidth within the frequency range of 6.57 to 12.73 GHz for the normal incidence condition, with the fractional bandwidth being [Formula: see text]. The accuracy of the metasurface absorber was verified through an experimental result that matched well with the full-wave simulated one. |
format | Online Article Text |
id | pubmed-10095628 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-100956282023-04-13 Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors Kim, Yongjune Lee, Jeong-Hae Materials (Basel) Article In this study, a broadband metasurface absorber composed of an optimal combination of copper tiles connected with four chip resistors is designed and experimentally verified. After fixing the locations of the chip resistors and setting their resistances to 100 [Formula: see text] , the genetic algorithm (GA) is utilized to design the optimal copper tile pattern for broadband absorption. The optimal combination of the copper tiles is identified by determining the states of the square tile pairs between copper or air, depending on the one or zero states of the bit sequence created by GA, respectively. The full-wave simulation results of the optimized metasurface absorber confirmed a [Formula: see text] dB reflectance bandwidth within the frequency range of 6.57 to 12.73 GHz for the normal incidence condition, with the fractional bandwidth being [Formula: see text]. The accuracy of the metasurface absorber was verified through an experimental result that matched well with the full-wave simulated one. MDPI 2023-03-28 /pmc/articles/PMC10095628/ /pubmed/37048986 http://dx.doi.org/10.3390/ma16072692 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kim, Yongjune Lee, Jeong-Hae Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors |
title | Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors |
title_full | Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors |
title_fullStr | Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors |
title_full_unstemmed | Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors |
title_short | Broadband Metasurface Absorber Based on an Optimal Combination of Copper Tiles and Chip Resistors |
title_sort | broadband metasurface absorber based on an optimal combination of copper tiles and chip resistors |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10095628/ https://www.ncbi.nlm.nih.gov/pubmed/37048986 http://dx.doi.org/10.3390/ma16072692 |
work_keys_str_mv | AT kimyongjune broadbandmetasurfaceabsorberbasedonanoptimalcombinationofcoppertilesandchipresistors AT leejeonghae broadbandmetasurfaceabsorberbasedonanoptimalcombinationofcoppertilesandchipresistors |