{"title":"利用极化转换超表面降低槽阵天线宽带RCS","authors":"Weizhe Qu, Dongfang Zhou, Qing Liu, Ningning Wang, Dewei Zhang","doi":"10.1049/mia2.70031","DOIUrl":null,"url":null,"abstract":"<p>A polarisation conversion metasurface (PCM) is proposed to realise broadband radar cross section (RCS) reduction of a slot array antenna. The PCM's unit cell, whose polarisation conversion ratio (PCR) is more than 88% from 8.41 to 32.28 GHz under x-and y-polarised normal incidence, consists of two pairs of v-patterns with gradually narrowing widths and a pair of rectangular patterns. The wideband RCS reduction of PCM is achieved by chessboard structure. Simulated and measured results prove that the application of PCM reduces wideband RCS. The proposed PCM can realise the RCS reduction outside the antenna's operating band. The 10 dB RCS reduction ranges from 8.7 to 34.8 GHz under normal incident wave with no polarisation insensitivity.</p>","PeriodicalId":13374,"journal":{"name":"Iet Microwaves Antennas & Propagation","volume":"19 1","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/mia2.70031","citationCount":"0","resultStr":"{\"title\":\"Broadband RCS Reduction for Slot Array Antenna Using Polarisation Conversion Metasurface\",\"authors\":\"Weizhe Qu, Dongfang Zhou, Qing Liu, Ningning Wang, Dewei Zhang\",\"doi\":\"10.1049/mia2.70031\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A polarisation conversion metasurface (PCM) is proposed to realise broadband radar cross section (RCS) reduction of a slot array antenna. The PCM's unit cell, whose polarisation conversion ratio (PCR) is more than 88% from 8.41 to 32.28 GHz under x-and y-polarised normal incidence, consists of two pairs of v-patterns with gradually narrowing widths and a pair of rectangular patterns. The wideband RCS reduction of PCM is achieved by chessboard structure. Simulated and measured results prove that the application of PCM reduces wideband RCS. The proposed PCM can realise the RCS reduction outside the antenna's operating band. The 10 dB RCS reduction ranges from 8.7 to 34.8 GHz under normal incident wave with no polarisation insensitivity.</p>\",\"PeriodicalId\":13374,\"journal\":{\"name\":\"Iet Microwaves Antennas & Propagation\",\"volume\":\"19 1\",\"pages\":\"\"},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2025-07-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1049/mia2.70031\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Iet Microwaves Antennas & Propagation\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1049/mia2.70031\",\"RegionNum\":4,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iet Microwaves Antennas & Propagation","FirstCategoryId":"94","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/mia2.70031","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
摘要
提出了一种极化转换超表面（PCM）来实现狭缝阵列天线的宽带雷达截面（RCS）缩减。在x偏振和y偏振正入射下，在8.41 ~ 32.28 GHz范围内，PCM的单晶胞由两对宽度逐渐变窄的v型和一对矩形型组成，其极化转化率大于88%。采用棋盘结构实现了PCM的宽带RCS降低。仿真和实测结果表明，PCM的应用降低了宽带RCS。所提出的PCM可以实现天线工作频带外的RCS降低。在正常入射波下，10 dB RCS降低范围为8.7 ~ 34.8 GHz，无极化不敏感。
Broadband RCS Reduction for Slot Array Antenna Using Polarisation Conversion Metasurface
A polarisation conversion metasurface (PCM) is proposed to realise broadband radar cross section (RCS) reduction of a slot array antenna. The PCM's unit cell, whose polarisation conversion ratio (PCR) is more than 88% from 8.41 to 32.28 GHz under x-and y-polarised normal incidence, consists of two pairs of v-patterns with gradually narrowing widths and a pair of rectangular patterns. The wideband RCS reduction of PCM is achieved by chessboard structure. Simulated and measured results prove that the application of PCM reduces wideband RCS. The proposed PCM can realise the RCS reduction outside the antenna's operating band. The 10 dB RCS reduction ranges from 8.7 to 34.8 GHz under normal incident wave with no polarisation insensitivity.
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Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques.
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Radiowave propagation at all frequencies and environments.
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