{"title":"A 2GHz quadrature hybrid implemented in CMOS technology","authors":"R. Frye, S. Kapur, R. Melville","doi":"10.1109/CICC.2002.1012817","DOIUrl":null,"url":null,"abstract":"We have derived a lumped-element circuit from its coupled line counterpart for a 90/spl deg/, 3dB hybrid coupler. We discuss the uses, design, and characteristics of such circuits in CMOS technology. We show measured characteristics of an example 50/spl Omega/, 2GHz coupler with 65dB of image rejection, 18dB of directivity and a 4.7dB noise figure.","PeriodicalId":209025,"journal":{"name":"Proceedings of the IEEE 2002 Custom Integrated Circuits Conference (Cat. No.02CH37285)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"111","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the IEEE 2002 Custom Integrated Circuits Conference (Cat. No.02CH37285)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CICC.2002.1012817","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 111
Abstract
We have derived a lumped-element circuit from its coupled line counterpart for a 90/spl deg/, 3dB hybrid coupler. We discuss the uses, design, and characteristics of such circuits in CMOS technology. We show measured characteristics of an example 50/spl Omega/, 2GHz coupler with 65dB of image rejection, 18dB of directivity and a 4.7dB noise figure.
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