{"title":"差分无磁环行器使用调制带阻滤波器","authors":"Ahmed Kord, D. Sounas, A. Alú","doi":"10.1109/MWSYM.2017.8058574","DOIUrl":null,"url":null,"abstract":"In this paper, we present a differential magnetless circulator by combining two angular-momentum-biased single-ended circulators, each of which consists of three first-order bandstop LC filters connected in a delta topology and modulated in time with a phase difference of 120 deg between each other. Compared to a single-ended architecture, the differential one drastically reduces even-order intermodulation products, improves insertion loss, extends the bandwidth, and significantly decreases the required modulation frequency. We present the theory of such a circulator and validate it with simulated and measured results.","PeriodicalId":6481,"journal":{"name":"2017 IEEE MTT-S International Microwave Symposium (IMS)","volume":"134 1","pages":"384-387"},"PeriodicalIF":0.0000,"publicationDate":"2017-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"26","resultStr":"{\"title\":\"Differential magnetless circulator using modulated bandstop filters\",\"authors\":\"Ahmed Kord, D. Sounas, A. Alú\",\"doi\":\"10.1109/MWSYM.2017.8058574\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, we present a differential magnetless circulator by combining two angular-momentum-biased single-ended circulators, each of which consists of three first-order bandstop LC filters connected in a delta topology and modulated in time with a phase difference of 120 deg between each other. Compared to a single-ended architecture, the differential one drastically reduces even-order intermodulation products, improves insertion loss, extends the bandwidth, and significantly decreases the required modulation frequency. We present the theory of such a circulator and validate it with simulated and measured results.\",\"PeriodicalId\":6481,\"journal\":{\"name\":\"2017 IEEE MTT-S International Microwave Symposium (IMS)\",\"volume\":\"134 1\",\"pages\":\"384-387\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-06-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"26\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 IEEE MTT-S International Microwave Symposium (IMS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2017.8058574\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 IEEE MTT-S International Microwave Symposium (IMS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2017.8058574","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Differential magnetless circulator using modulated bandstop filters
In this paper, we present a differential magnetless circulator by combining two angular-momentum-biased single-ended circulators, each of which consists of three first-order bandstop LC filters connected in a delta topology and modulated in time with a phase difference of 120 deg between each other. Compared to a single-ended architecture, the differential one drastically reduces even-order intermodulation products, improves insertion loss, extends the bandwidth, and significantly decreases the required modulation frequency. We present the theory of such a circulator and validate it with simulated and measured results.
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