Design of a Dual-Passband Frequency-Selective Rasorber With High Selectivity

IF 4.8 2区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Minrui Wang;Zheng Xiang;Yi Li;Peng Ren;Ruize Xu;Chao Gu;Wei Xue;Steven Gao
{"title":"Design of a Dual-Passband Frequency-Selective Rasorber With High Selectivity","authors":"Minrui Wang;Zheng Xiang;Yi Li;Peng Ren;Ruize Xu;Chao Gu;Wei Xue;Steven Gao","doi":"10.1109/LAWP.2025.3578316","DOIUrl":null,"url":null,"abstract":"A dual-passband frequency-selective rasorber (FSR) with high selectivity is proposed in this letter. By analyzing the equivalent circuit model, the design approach improving the selectivity of the dual passband is introduced. The FSR is formed by a lossy layer and two frequency-selective surface layers. The lossy layer is composed of two parallel resonance units embedded in a rhombic patch, which is connected with four resistors loaded on the T-shape metal strips. The lossless layer consists of two layers of double square slots to provide highly selective passbands with second-order response. The simulated results show that two transmission bands are achieved at 7.2 GHz and 10.8 GHz with the insertion loss of 0.86 dB and 0.57 dB, and the fractional bandwidth for <inline-formula><tex-math>$|S_{11}|$</tex-math></inline-formula> <inline-formula><tex-math>$&lt; $</tex-math></inline-formula> <inline-formula><tex-math>$-$</tex-math></inline-formula>10 dB is 94.8%. Both sides of the transmission bands exhibit steep roll-off characteristics, with the coefficient of steep drop being 41.18, 77.78, 31.82, and 17.5, respectively. The unit cell size is <inline-formula><tex-math>$0.18 \\lambda \\times 0.18 \\lambda \\times 0.19 \\lambda$</tex-math></inline-formula> (<inline-formula><tex-math>$\\lambda$</tex-math></inline-formula> is the wavelength at the lowest operating frequency). A prototype of the proposed FSR was fabricated and measured. The measured results are consistent with the simulation results.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2954-2958"},"PeriodicalIF":4.8000,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Wireless Propagation Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/11029036/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0

Abstract

A dual-passband frequency-selective rasorber (FSR) with high selectivity is proposed in this letter. By analyzing the equivalent circuit model, the design approach improving the selectivity of the dual passband is introduced. The FSR is formed by a lossy layer and two frequency-selective surface layers. The lossy layer is composed of two parallel resonance units embedded in a rhombic patch, which is connected with four resistors loaded on the T-shape metal strips. The lossless layer consists of two layers of double square slots to provide highly selective passbands with second-order response. The simulated results show that two transmission bands are achieved at 7.2 GHz and 10.8 GHz with the insertion loss of 0.86 dB and 0.57 dB, and the fractional bandwidth for $|S_{11}|$ $< $ $-$10 dB is 94.8%. Both sides of the transmission bands exhibit steep roll-off characteristics, with the coefficient of steep drop being 41.18, 77.78, 31.82, and 17.5, respectively. The unit cell size is $0.18 \lambda \times 0.18 \lambda \times 0.19 \lambda$ ($\lambda$ is the wavelength at the lowest operating frequency). A prototype of the proposed FSR was fabricated and measured. The measured results are consistent with the simulation results.
一种高选择性双通带选频器的设计
本文提出了一种具有高选择性的双通带选频器(FSR)。通过对等效电路模型的分析,介绍了提高双通带选择性的设计方法。FSR由一个损耗层和两个频率选择表面层组成。损耗层由嵌入在菱形贴片中的两个平行共振单元组成,该贴片与加载在t形金属条上的四个电阻相连。无损层由两层双方槽组成,提供具有二阶响应的高选择性通带。仿真结果表明,该系统实现了7.2 GHz和10.8 GHz两个传输频段,插入损耗分别为0.86 dB和0.57 dB, $|S_{11}|$ $< $ $-$10 dB的分数带宽为94.8%。传动带两侧呈现陡滚降特性,陡降系数分别为41.18、77.78、31.82和17.5。单位电池尺寸为$0.18 \lambda \乘以0.18 \lambda \乘以0.19 \lambda$ ($\lambda$是最低工作频率下的波长)。制作并测量了该FSR的原型。实测结果与仿真结果吻合较好。
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
CiteScore
8.00
自引率
9.50%
发文量
529
审稿时长
1.0 months
期刊介绍: IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信