Active Quasi-Circulator based on Wilkinson Power Divider For Miniaturized Wireless Communication System

Active Quasi-Circulator based on Wilkinson Power Divider For Miniaturized Wireless Communication System | 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 Active Quasi-Circulator based on Wilkinson Power Divider For Miniaturized Wireless Communication System Kaijun Song, Meng Zhao, yong Fan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3708757/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 An active quasi-circulator based on Wilkinson power divider has been proposed and analyzed in this paper. A power divider, two common-source connected transmits and receive transistor amplifiers are used to consist of the circuit. The single conductivity of the transistor and the isolation of the power divider's isolation resistor are used to eliminate the interference between the received and transmitted signals, thus achieving the role of the quasi-circulator. The advantage of this circuit is that the received and transmitted electromagnetic signals can be amplified by two transistor amplifiers to a certain extent, which can save the design of additional signal power amplification circuits and improve the efficiency of circuit design. In order to verify the effectiveness of the proposed structure, an active quasi-circulator with a frequency band of 5GHz-6GHz is designed and the simulated structure is machined and fabricated. According to the measured results, in the frequency band of 5GHz-6GHz, the input return loss of antenna port is lower than − 10dB, the output return loss of transmit and receive ports are lower than − 15dB, and the degree of isolation between receive and transmit branches of the quasi-circulator is lower than − 18.6dB, which shows that the quasi-circulator has good working characteristics. Active Quasi-Circulator Power Divider Transistor Amplifier Isolation Miniaturized 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-3708757","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":258858058,"identity":"b70ed84c-43cb-432c-acbf-97b6608dc55f","order_by":0,"name":"Kaijun Song","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA00lEQVRIiWNgGAWjYBACCTBZAeOyEa3lDEw10VoY20jRItl/+NjDr/MOy8nPb37A8KHsMAP/7Ab8WqQl0tKNZbcdNjY4xmbAOOPcYQaJOwfwa5GT4DGTltx2OHEDGw8DM2/bYQYDiQQCWvjPALXMOVw/vw2o5S8xWqQZcswkPzYcTmA4BtTCSIwWyRlpadIMx9INNxxLMzjYcy6dR+IGAS0S5w8fk/xRYy0v33z44YMfZdZy/DMIaAEBZh4o4wAQ8+BRiACMP4hSNgpGwSgYBSMWAAC9FT0OzfwziQAAAABJRU5ErkJggg==","orcid":"","institution":"","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Kaijun","middleName":"","lastName":"Song","suffix":""},{"id":258858059,"identity":"47bc908a-11a4-4207-8582-621ed92358ec","order_by":1,"name":"Meng Zhao","email":"","orcid":"","institution":"","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Meng","middleName":"","lastName":"Zhao","suffix":""},{"id":258858060,"identity":"dd5e2842-f60a-46a9-8e23-51cd604fcae2","order_by":2,"name":"yong Fan","email":"","orcid":"","institution":"","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"yong","middleName":"","lastName":"Fan","suffix":""}],"badges":[],"createdAt":"2023-12-05 08:44:23","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3708757/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3708757/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":53302745,"identity":"b8c7f656-f5a0-4fea-bb14-0983c54fc6ef","added_by":"auto","created_at":"2024-03-23 10:15:06","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":721279,"visible":true,"origin":"","legend":"","description":"","filename":"ActiveQuasiCirculatorbasedonWilkinsonPowerDividerForMiniaturizedWirelessCommunicationSystem.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3708757/v1_covered_ca1ad4ee-f623-4653-ae73-1475a0c66bb4.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Active Quasi-Circulator based on Wilkinson Power Divider For Miniaturized Wireless Communication System","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":"Active Quasi-Circulator, Power Divider, Transistor Amplifier, Isolation, Miniaturized","lastPublishedDoi":"10.21203/rs.3.rs-3708757/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3708757/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAn active quasi-circulator based on Wilkinson power divider has been proposed and analyzed in this paper. A power divider, two common-source connected transmits and receive transistor amplifiers are used to consist of the circuit. The single conductivity of the transistor and the isolation of the power divider's isolation resistor are used to eliminate the interference between the received and transmitted signals, thus achieving the role of the quasi-circulator. The advantage of this circuit is that the received and transmitted electromagnetic signals can be amplified by two transistor amplifiers to a certain extent, which can save the design of additional signal power amplification circuits and improve the efficiency of circuit design. In order to verify the effectiveness of the proposed structure, an active quasi-circulator with a frequency band of 5GHz-6GHz is designed and the simulated structure is machined and fabricated. According to the measured results, in the frequency band of 5GHz-6GHz, the input return loss of antenna port is lower than \u0026minus;\u0026thinsp;10dB, the output return loss of transmit and receive ports are lower than \u0026minus;\u0026thinsp;15dB, and the degree of isolation between receive and transmit branches of the quasi-circulator is lower than \u0026minus;\u0026thinsp;18.6dB, which shows that the quasi-circulator has good working characteristics.\u003c/p\u003e","manuscriptTitle":"Active Quasi-Circulator based on Wilkinson Power Divider For Miniaturized Wireless Communication System","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2023-12-13 04:11:47","doi":"10.21203/rs.3.rs-3708757/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":"5c4a41b1-d1ae-4ce5-bb39-33297182b620","owner":[],"postedDate":"December 13th, 2023","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-03-23T10:14:35+00:00","versionOfRecord":[],"versionCreatedAt":"2023-12-13 04:11:47","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-3708757","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3708757","identity":"rs-3708757","version":["v1"]},"buildId":"7rjqhiLT3MXkJMwkYKINL","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}