{"title":"一个单片SiGe 5 GHz低噪声放大器和可调图像抑制滤波器的无线局域网应用","authors":"B. Foley, P. Murphy, A. Murphy","doi":"10.1109/HFPSC.2000.874077","DOIUrl":null,"url":null,"abstract":"This paper presents a monolithic RFIC consisting of a low noise amplifier (LNA) and tuneable image-reject filter (IRF), for wireless local area network applications at 5 GHz. The LNA uses a cascode topology with on-chip matching to provide a simultaneous noise and power match The tuneable third-order filter alters the transfer characteristic of this LNA to achieve filtering of the image signal. The filter is varactor tuned using an external voltage source. The LNA and IRF are designed for operation between 5.15-5.35 GHz, targeted at the lower two bands of the recently allocated unlicensed national information infrastructure (U-NII) frequency bands. The circuit reported here makes use of Motorola's silicon-germanium process technologies.","PeriodicalId":185234,"journal":{"name":"2000 High Frequency Postgraduate Student Colloquium (Cat. No.00TH8539)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A monolithic SiGe 5 GHz low noise amplifier and tuneable image-reject filter for wireless LAN applications\",\"authors\":\"B. Foley, P. Murphy, A. Murphy\",\"doi\":\"10.1109/HFPSC.2000.874077\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a monolithic RFIC consisting of a low noise amplifier (LNA) and tuneable image-reject filter (IRF), for wireless local area network applications at 5 GHz. The LNA uses a cascode topology with on-chip matching to provide a simultaneous noise and power match The tuneable third-order filter alters the transfer characteristic of this LNA to achieve filtering of the image signal. The filter is varactor tuned using an external voltage source. The LNA and IRF are designed for operation between 5.15-5.35 GHz, targeted at the lower two bands of the recently allocated unlicensed national information infrastructure (U-NII) frequency bands. The circuit reported here makes use of Motorola's silicon-germanium process technologies.\",\"PeriodicalId\":185234,\"journal\":{\"name\":\"2000 High Frequency Postgraduate Student Colloquium (Cat. No.00TH8539)\",\"volume\":\"31 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-09-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2000 High Frequency Postgraduate Student Colloquium (Cat. No.00TH8539)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/HFPSC.2000.874077\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2000 High Frequency Postgraduate Student Colloquium (Cat. No.00TH8539)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HFPSC.2000.874077","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A monolithic SiGe 5 GHz low noise amplifier and tuneable image-reject filter for wireless LAN applications
This paper presents a monolithic RFIC consisting of a low noise amplifier (LNA) and tuneable image-reject filter (IRF), for wireless local area network applications at 5 GHz. The LNA uses a cascode topology with on-chip matching to provide a simultaneous noise and power match The tuneable third-order filter alters the transfer characteristic of this LNA to achieve filtering of the image signal. The filter is varactor tuned using an external voltage source. The LNA and IRF are designed for operation between 5.15-5.35 GHz, targeted at the lower two bands of the recently allocated unlicensed national information infrastructure (U-NII) frequency bands. The circuit reported here makes use of Motorola's silicon-germanium process technologies.
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