{"title":"射频收发集成电路中SAW双工器与LNA协同设计，降低蜂窝系统射频前端总噪声系数","authors":"M. Iwaki, J. Tsutsumi, M. Ueda, Y. Satoh","doi":"10.1109/ULTSYM.2014.0019","DOIUrl":null,"url":null,"abstract":"The co-design of a SAW duplexer and a low-noise amplifier (LNA) for reducing the total noise figure of the Rx chain in the RF front-end of current multi-band cellular handsets is presented in this paper. The co-design procedure is proposed and one case study for the UMTS Band2 is demonstrated. The key point of the co-design is designing a duplexer and an LNA at the optimum impedance, instead of the standard 50 Ω impedance interface, while taking the matching circuit loss into account. The possibility of reducing the total noise figure is shown in the case study simulation.","PeriodicalId":153901,"journal":{"name":"2014 IEEE International Ultrasonics Symposium","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Co-design of SAW duplexer and LNA in RF transceiver IC for reducing total noise figure in RF front-end of cellular systems\",\"authors\":\"M. Iwaki, J. Tsutsumi, M. Ueda, Y. Satoh\",\"doi\":\"10.1109/ULTSYM.2014.0019\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The co-design of a SAW duplexer and a low-noise amplifier (LNA) for reducing the total noise figure of the Rx chain in the RF front-end of current multi-band cellular handsets is presented in this paper. The co-design procedure is proposed and one case study for the UMTS Band2 is demonstrated. The key point of the co-design is designing a duplexer and an LNA at the optimum impedance, instead of the standard 50 Ω impedance interface, while taking the matching circuit loss into account. The possibility of reducing the total noise figure is shown in the case study simulation.\",\"PeriodicalId\":153901,\"journal\":{\"name\":\"2014 IEEE International Ultrasonics Symposium\",\"volume\":\"31 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-10-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE International Ultrasonics Symposium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.2014.0019\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE International Ultrasonics Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.2014.0019","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Co-design of SAW duplexer and LNA in RF transceiver IC for reducing total noise figure in RF front-end of cellular systems
The co-design of a SAW duplexer and a low-noise amplifier (LNA) for reducing the total noise figure of the Rx chain in the RF front-end of current multi-band cellular handsets is presented in this paper. The co-design procedure is proposed and one case study for the UMTS Band2 is demonstrated. The key point of the co-design is designing a duplexer and an LNA at the optimum impedance, instead of the standard 50 Ω impedance interface, while taking the matching circuit loss into account. The possibility of reducing the total noise figure is shown in the case study simulation.
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