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用于厘米波应用的、基于液晶聚合物基板上的贴片阵列的薄膜谐振超表面吸收器。

Thin film resonant metasurface absorbers using patch-based arrays on liquid crystal polymer substrates for centimeter-wave applications.

作者信息

Kanjanasit Komsan, Tantipiriyakul Tanatorn, Wang Changhai

机构信息

College of Computing, Prince of Songkla University, Phuket Campus, Phuket, 83120, Thailand.

Institute of Sensors, Signals, and Systems, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom.

出版信息

Heliyon. 2024 Jul 31;10(15):e35399. doi: 10.1016/j.heliyon.2024.e35399. eCollection 2024 Aug 15.

DOI:10.1016/j.heliyon.2024.e35399
PMID:39170528
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11336614/
Abstract

This paper reports the design and development of thin-film resonant absorbers for narrowband and multiband operation in the frequency regions centered at 10 GHz. The structure of the resonant metasurface absorber (RMA) is based on a liquid crystal polymer (LCP) thin-film spacer with a copper patch array on the front surface and un-patterned copper film on the back surface of the LCP film. The design and simulation works were carried out using full-wave analysis of the RMA characteristics. The copper-based periodic patch array acts as a metasurface. The perfect RMA for a given LCP film thickness can be obtained through impedance optimization by adjustment of the dimensions of the lattice periods. The electric and magnetic field distributions were studied. The resonant film absorber based on a 100 μm thick LCP film has an electrical thickness of at 10 GHz. The experimental work was conducted using a narrowband RMA prototype consisting of cells. The measured result of the resonant absorption is at 10.1 GHz, which is in close agreement with the design frequency of 10 GHz. For multiband functionality, double- and quad-band film resonant absorbers have been designed based on a coplanar supercell utilizing the superposition of the resonance effect. The LCP film-based absorbers have the potential to be used in EM shielding and sensing applications in centimeter-wave applications.

摘要

本文报道了用于在以10GHz为中心的频率区域进行窄带和多频段操作的薄膜谐振吸收器的设计与开发。谐振超表面吸收器（RMA）的结构基于一种液晶聚合物（LCP）薄膜间隔层，在LCP薄膜的前表面有一个铜贴片阵列，后表面有未图案化的铜膜。利用RMA特性的全波分析进行了设计和仿真工作。基于铜的周期性贴片阵列充当超表面。通过调整晶格周期的尺寸进行阻抗优化，可以获得对于给定LCP薄膜厚度的完美RMA。研究了电场和磁场分布。基于100μm厚LCP薄膜的谐振薄膜吸收器在10GHz时的电厚度为 。使用由 个单元组成的窄带RMA原型进行了实验工作。谐振吸收的测量结果在10.1GHz，与设计频率10GHz非常吻合。对于多频段功能，基于共面超级单元利用谐振效应的叠加设计了双频段和四频段薄膜谐振吸收器。基于LCP薄膜的吸收器有潜力用于厘米波应用中的电磁屏蔽和传感应用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/6944093d814b/gr018.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/6944093d814b/gr018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/6e2442e4452f/gr001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/9015061f954b/gr002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/40bdaf3b0e25/gr003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/969c3c81986b/gr004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/e80ce27235ef/gr005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/3337f9fa9aea/gr006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/60611025d87f/gr007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/0a6273885ed5/gr008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/3eff9d5c7549/gr009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/ad785652e9e5/gr010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/7ef5ddc105b0/gr011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/7e2920c86030/gr012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/4e8277edcc5f/gr013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/1c4e5fd1822f/gr015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/2ee43d83db1a/gr016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/342f8be7eefd/gr017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7879/11336614/6944093d814b/gr018.jpg

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