Broadband Double Layer Metamaterial Circular Polarizer Based on H-Spiral Structure

Broadband Double Layer Metamaterial Circular Polarizer Based on H-Spiral Structure | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Broadband Double Layer Metamaterial Circular Polarizer Based on H-Spiral Structure Shihua Huang, Farman Ali Mangi, Ghulam Fatima This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4659555/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract A broadband double layer metamaterial circular polarizer using H-type spiral structure is proposed. The metamaterial structure consists of 784 unit cells arranged in a 28 x28 layout. Each unit cell is composed of H-spiral structure which are twisted by an angle of ± 45 o . The right handed circular polarization (RHCP) and left handed circular polarization (LHCP) with high transmission circular polarization are achieved at 27.95GHz-29.95GHz, 31.04GHz-34.31GHz, 35.26GHz-35.96GHz, 38.08GHz-38.58GHz, 39.46GHz-39.60GHz, and 29.96GHz-31.03GHz, 34.32GHz-35.25GHz, 38.59GHz-39.45GHz, respectively. In addition, the broadband axial ratio bandwidth of 5.0%, 2.67%, 8.17%, 2.32%, 1.75%, 1.25%, 2.15%, and 0.35% is achieved across the 20–40 GHz range. The prototype model is fabricated and measured for the validation of simulated results. The simulated and measured results reveal that the metamaterial structure have efficient performance, in terms of Axial Ratio, broadband, transmission loss and circular dichroism for advanced polarization conversion applications. The overall calculated axial ratio bandwidth of 23.66% is extracted across the 20–40 GHz. Asymmetric tri-band H-spiral type metamaterial Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4659555","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":321931348,"identity":"82da144b-46b0-4f92-92b9-559f0a69e0c3","order_by":0,"name":"Shihua Huang","email":"","orcid":"","institution":"Zhejiang Normal University","correspondingAuthor":false,"prefix":"","firstName":"Shihua","middleName":"","lastName":"Huang","suffix":""},{"id":321931349,"identity":"ea2a25aa-dd0a-41cb-bc3b-0940b17e65a7","order_by":1,"name":"Farman Ali Mangi","email":"","orcid":"","institution":"Shah Abdul Latif University Khairpur","correspondingAuthor":false,"prefix":"","firstName":"Farman","middleName":"Ali","lastName":"Mangi","suffix":""},{"id":321931350,"identity":"ad713730-42fa-46c4-894d-ad9b506a2a9c","order_by":2,"name":"Ghulam Fatima","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABCElEQVRIiWNgGAWjYBACA2YQeYDBAMKtYADzGXiI1MLYwHCGGC0MyFoY26DC+LSYs/Me/MBwxs6YX7r5+IOP8+rYzSUSGB+8bWOQN8ehxbKZL1mC4UaymeScY4mNM7exMVvOSGA2nNvGYLizAYfDDvMYSDB8YLYxuJFj2My7jYfZ4EYCmzRvG0OCwQGcWox/MHyot7EHa5kjAdLC/puAFjOgww6bGUiAtDQYgG1hJqTFguHMcWOJO8cSZ844lsBscOZhs+SccxKGG3BpOX/G+AbDsWrD/tnNBz58qKlLNjiefPDDmzIbeVy2gADzHxApAeEkg6MUzsULoGrsiFA6CkbBKBgFIwwAADh6V59lIK2/AAAAAElFTkSuQmCC","orcid":"","institution":"Zhejiang Normal University","correspondingAuthor":true,"prefix":"","firstName":"Ghulam","middleName":"","lastName":"Fatima","suffix":""}],"badges":[],"createdAt":"2024-06-29 13:44:30","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4659555/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4659555/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":66487843,"identity":"f2eac83b-36ba-491b-bc01-d0138b4c3d6c","added_by":"auto","created_at":"2024-10-13 07:38:41","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1163274,"visible":true,"origin":"","legend":"","description":"","filename":"ManuscriptNewSubmission.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4659555/v1_covered_3ea47ba4-9347-4c0c-a9f8-0c539413a8ca.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Broadband Double Layer Metamaterial Circular Polarizer Based on H-Spiral Structure","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Asymmetric, tri-band, H-spiral type metamaterial","lastPublishedDoi":"10.21203/rs.3.rs-4659555/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4659555/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eA broadband double layer metamaterial circular polarizer using H-type spiral structure is proposed. The metamaterial structure consists of 784 unit cells arranged in a 28 x28 layout. Each unit cell is composed of H-spiral structure which are twisted by an angle of \u0026plusmn;\u0026thinsp;45\u003csup\u003eo\u003c/sup\u003e. The right handed circular polarization (RHCP) and left handed circular polarization (LHCP) with high transmission circular polarization are achieved at 27.95GHz-29.95GHz, 31.04GHz-34.31GHz, 35.26GHz-35.96GHz, 38.08GHz-38.58GHz, 39.46GHz-39.60GHz, and 29.96GHz-31.03GHz, 34.32GHz-35.25GHz, 38.59GHz-39.45GHz, respectively. In addition, the broadband axial ratio bandwidth of 5.0%, 2.67%, 8.17%, 2.32%, 1.75%, 1.25%, 2.15%, and 0.35% is achieved across the 20\u0026ndash;40 GHz range. The prototype model is fabricated and measured for the validation of simulated results. The simulated and measured results reveal that the metamaterial structure have efficient performance, in terms of Axial Ratio, broadband, transmission loss and circular dichroism for advanced polarization conversion applications. The overall calculated axial ratio bandwidth of 23.66% is extracted across the 20\u0026ndash;40 GHz.\u003c/p\u003e","manuscriptTitle":"Broadband Double Layer Metamaterial Circular Polarizer Based on H-Spiral Structure","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-07-25 04:34:32","doi":"10.21203/rs.3.rs-4659555/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"b4f76c38-7b66-41d4-b090-3d06f08343a2","owner":[],"postedDate":"July 25th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-10-13T07:38:24+00:00","versionOfRecord":[],"versionCreatedAt":"2024-07-25 04:34:32","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4659555","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4659555","identity":"rs-4659555","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}