{"title":"lc阶梯匹配和电容并联反馈的低噪声放大器分析","authors":"M. Weststrate, S. Sinha","doi":"10.1109/AFRCON.2009.5308169","DOIUrl":null,"url":null,"abstract":"In this paper a new low noise amplifier configuration is proposed to achieve wideband operation. This configuration consists of an LC-ladder filter and a common-emitter stage employing shunt-shunt capacitive feedback to realize wideband matching. Design equations for this configuration are derived, as well as equations for the important performance measures namely noise figure, gain and IIP3. The results of a design for achieving typical low noise amplifier specifications in the ultra-wideband are calculated from these equations and plotted. Without any optimization S11 of less than −10 dB over the entire frequency band and a minimum noise figure of 2.87 dB are predicted when achieving S21 of 20 dB. These results indicate that very good performance can be attained through the use of this technique.","PeriodicalId":122830,"journal":{"name":"AFRICON 2009","volume":"20 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Analysis of a low noise amplifier with LC-ladder matching and capacitive shunt-shunt feedback\",\"authors\":\"M. Weststrate, S. Sinha\",\"doi\":\"10.1109/AFRCON.2009.5308169\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper a new low noise amplifier configuration is proposed to achieve wideband operation. This configuration consists of an LC-ladder filter and a common-emitter stage employing shunt-shunt capacitive feedback to realize wideband matching. Design equations for this configuration are derived, as well as equations for the important performance measures namely noise figure, gain and IIP3. The results of a design for achieving typical low noise amplifier specifications in the ultra-wideband are calculated from these equations and plotted. Without any optimization S11 of less than −10 dB over the entire frequency band and a minimum noise figure of 2.87 dB are predicted when achieving S21 of 20 dB. These results indicate that very good performance can be attained through the use of this technique.\",\"PeriodicalId\":122830,\"journal\":{\"name\":\"AFRICON 2009\",\"volume\":\"20 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"AFRICON 2009\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/AFRCON.2009.5308169\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"AFRICON 2009","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AFRCON.2009.5308169","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Analysis of a low noise amplifier with LC-ladder matching and capacitive shunt-shunt feedback
In this paper a new low noise amplifier configuration is proposed to achieve wideband operation. This configuration consists of an LC-ladder filter and a common-emitter stage employing shunt-shunt capacitive feedback to realize wideband matching. Design equations for this configuration are derived, as well as equations for the important performance measures namely noise figure, gain and IIP3. The results of a design for achieving typical low noise amplifier specifications in the ultra-wideband are calculated from these equations and plotted. Without any optimization S11 of less than −10 dB over the entire frequency band and a minimum noise figure of 2.87 dB are predicted when achieving S21 of 20 dB. These results indicate that very good performance can be attained through the use of this technique.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
