Vinay Iyer;Dustin Widmann;Christopher Moore;Matthew F. Bauwens;Steven M. Bowers;Robert M. Weikle
{"title":"A Phase Conjugator Based on Fourth-Order Subharmonically Pumped Mixers","authors":"Vinay Iyer;Dustin Widmann;Christopher Moore;Matthew F. Bauwens;Steven M. Bowers;Robert M. Weikle","doi":"10.1109/LMWT.2024.3383333","DOIUrl":null,"url":null,"abstract":"A new phase conjugator circuit architecture suitable for retrodirective array applications is described and demonstrated. The architecture is based on fourth-order subharmonically pumped mixers and requires a local oscillator (LO) frequency at half the radio frequency (RF). Measurements of a prototype phase conjugator operating at an RF input and intermediate frequency (IF) output of 3.47 and 3.57 GHz have shown an RF-to-IF conversion loss of 21.4 dB, RF-to-IF isolation of 26.4 dB, and isolation between the IF and twice the LO of 59.8 dB. A technique to quantitatively measure the phase conjugate signal that does not rely on retroreflection is also detailed.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE microwave and wireless technology letters","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10493037/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
A new phase conjugator circuit architecture suitable for retrodirective array applications is described and demonstrated. The architecture is based on fourth-order subharmonically pumped mixers and requires a local oscillator (LO) frequency at half the radio frequency (RF). Measurements of a prototype phase conjugator operating at an RF input and intermediate frequency (IF) output of 3.47 and 3.57 GHz have shown an RF-to-IF conversion loss of 21.4 dB, RF-to-IF isolation of 26.4 dB, and isolation between the IF and twice the LO of 59.8 dB. A technique to quantitatively measure the phase conjugate signal that does not rely on retroreflection is also detailed.