K. Kobayashi, L. Tran, T. Block, J. Cowles, A. Oki, D. Streit
{"title":"PNP AlGaAs/GaAs HBT低噪声放大器","authors":"K. Kobayashi, L. Tran, T. Block, J. Cowles, A. Oki, D. Streit","doi":"10.1109/GAAS.1995.528964","DOIUrl":null,"url":null,"abstract":"This paper describes the performance of PNP AlGaAs/GaAs HBT-based low noise amplifiers. A 2 GHz narrow-band noise matched LNA achieves a min, NF=2.2 dB and an associated gain of 9.3 dB while consuming only 4 mW through a -2 V supply. A DC-4.5 GHz wideband direct-coupled LNA achieves 20 dB gain, and NFs of 2.0, 2.4, and 2.8 dB at 1, 2, and 4 GHz, respectively. The GaAs PNP HBTs of this work employ an exponentially graded base doping profile to enhance the device f/sub T/ and improve the high frequency NF performance. The resulting PNP HBT LNAs obtain noise figure-bandwidth performance which is better than Si-BJT LNAs, and comparable to NPN HBT LNAs for frequencies up to 4 GHz.","PeriodicalId":422183,"journal":{"name":"GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium 17th Annual Technical Digest 1995","volume":"78 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"PNP AlGaAs/GaAs HBT low noise amplifiers\",\"authors\":\"K. Kobayashi, L. Tran, T. Block, J. Cowles, A. Oki, D. Streit\",\"doi\":\"10.1109/GAAS.1995.528964\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes the performance of PNP AlGaAs/GaAs HBT-based low noise amplifiers. A 2 GHz narrow-band noise matched LNA achieves a min, NF=2.2 dB and an associated gain of 9.3 dB while consuming only 4 mW through a -2 V supply. A DC-4.5 GHz wideband direct-coupled LNA achieves 20 dB gain, and NFs of 2.0, 2.4, and 2.8 dB at 1, 2, and 4 GHz, respectively. The GaAs PNP HBTs of this work employ an exponentially graded base doping profile to enhance the device f/sub T/ and improve the high frequency NF performance. The resulting PNP HBT LNAs obtain noise figure-bandwidth performance which is better than Si-BJT LNAs, and comparable to NPN HBT LNAs for frequencies up to 4 GHz.\",\"PeriodicalId\":422183,\"journal\":{\"name\":\"GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium 17th Annual Technical Digest 1995\",\"volume\":\"78 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-10-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium 17th Annual Technical Digest 1995\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GAAS.1995.528964\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium 17th Annual Technical Digest 1995","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GAAS.1995.528964","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
This paper describes the performance of PNP AlGaAs/GaAs HBT-based low noise amplifiers. A 2 GHz narrow-band noise matched LNA achieves a min, NF=2.2 dB and an associated gain of 9.3 dB while consuming only 4 mW through a -2 V supply. A DC-4.5 GHz wideband direct-coupled LNA achieves 20 dB gain, and NFs of 2.0, 2.4, and 2.8 dB at 1, 2, and 4 GHz, respectively. The GaAs PNP HBTs of this work employ an exponentially graded base doping profile to enhance the device f/sub T/ and improve the high frequency NF performance. The resulting PNP HBT LNAs obtain noise figure-bandwidth performance which is better than Si-BJT LNAs, and comparable to NPN HBT LNAs for frequencies up to 4 GHz.