Ultra-broadband and wide-angle microwave absorber based on resistive films with a 3D configuration

IF 2.6 4区物理与天体物理 Q2 PHYSICS, APPLIED

International Journal of Modern Physics B Pub Date : 2023-10-01 DOI:10.1142/s0217979224504022

Baihong Chi, Mengzhu Li, Pengfei Wang, Yuanyuan Li, Xinyu Geng, Linjie Wang, Guangsheng Deng

{"title":"Ultra-broadband and wide-angle microwave absorber based on resistive films with a 3D configuration","authors":"Baihong Chi, Mengzhu Li, Pengfei Wang, Yuanyuan Li, Xinyu Geng, Linjie Wang, Guangsheng Deng","doi":"10.1142/s0217979224504022","DOIUrl":null,"url":null,"abstract":"This paper introduces a broadband electromagnetic wave absorber with characteristics of polarization-independence and wide-angle stability based on resistive films with a three-dimensional (3D) configuration. The absorber consists of a 3D dielectric substrate array covered by a resistive film, which not only broadens the operation frequency band but also improves the absorption with large incidence angles. Simulated results indicate that the absorber achieves wideband absorption with over 90% absorptivity in the frequency range of 5.7–41.8[Formula: see text]GHz, corresponding to a relative absorption bandwidth of 152%. Due to the high symmetry of the structure, the absorber is insensitive to polarization angles. Moreover, the presented design maintains wave absorption greater than 90% when incidence angle reaches 70∘ due to its 3D structure that ensures high absorption for wide incidence angles. The mechanism of this structure is investigated through surface current and power consumption distribution, while optimization parameters are analyzed for achieving the desired bandwidth. This absorber has the advantages of wide-band absorption and excellent stability under oblique incidence angles, making it potentially useful in applications such as electromagnetic shielding and energy harvesting.","PeriodicalId":14108,"journal":{"name":"International Journal of Modern Physics B","volume":"90 1","pages":"0"},"PeriodicalIF":2.6000,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Modern Physics B","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1142/s0217979224504022","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

This paper introduces a broadband electromagnetic wave absorber with characteristics of polarization-independence and wide-angle stability based on resistive films with a three-dimensional (3D) configuration. The absorber consists of a 3D dielectric substrate array covered by a resistive film, which not only broadens the operation frequency band but also improves the absorption with large incidence angles. Simulated results indicate that the absorber achieves wideband absorption with over 90% absorptivity in the frequency range of 5.7–41.8[Formula: see text]GHz, corresponding to a relative absorption bandwidth of 152%. Due to the high symmetry of the structure, the absorber is insensitive to polarization angles. Moreover, the presented design maintains wave absorption greater than 90% when incidence angle reaches 70∘ due to its 3D structure that ensures high absorption for wide incidence angles. The mechanism of this structure is investigated through surface current and power consumption distribution, while optimization parameters are analyzed for achieving the desired bandwidth. This absorber has the advantages of wide-band absorption and excellent stability under oblique incidence angles, making it potentially useful in applications such as electromagnetic shielding and energy harvesting.

查看原文本刊更多论文

基于三维结构电阻膜的超宽带广角微波吸收体

本文介绍了一种基于三维结构电阻膜的宽带电磁波吸波器，该吸波器具有极化无关性和广角稳定性。该吸收器由覆盖有电阻膜的三维介质衬底阵列组成，不仅拓宽了工作频带，而且在大入射角下提高了吸收性能。仿真结果表明，在5.7 ~ 41.8 GHz的频率范围内，吸波器实现了90%以上的宽带吸收，相对吸收带宽为152%。由于结构的高度对称性，吸收器对偏振角不敏感。此外，当入射角达到70°时，由于其3D结构，确保在大入射角下吸收率高，因此该设计使吸波率保持在90%以上。通过表面电流和功耗分布研究了该结构的机理，并分析了实现所需带宽的优化参数。这种吸收剂具有宽带吸收和在斜入射角下的优异稳定性的优点，使其在电磁屏蔽和能量收集等应用中具有潜在的用途。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Modern Physics B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.80%

发文量

417

审稿时长

3.1 months

期刊介绍： Launched in 1987, the International Journal of Modern Physics B covers the most important aspects and the latest developments in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low dimensional materials. One unique feature of this journal is its review section which contains articles with permanent research value besides the state-of-the-art research work in the relevant subject areas.