Ryan Welch, Tom Jenkins, Bob Neidhard, Lois Kehias, Tony Quach, P. Watson, Rick Worley, Mike Barsky, Randy Sandhu, Mike Wojtowicz
{"title":"Low noise hybrid amplifier using AlGaN/GaN power HEMT devices","authors":"Ryan Welch, Tom Jenkins, Bob Neidhard, Lois Kehias, Tony Quach, P. Watson, Rick Worley, Mike Barsky, Randy Sandhu, Mike Wojtowicz","doi":"10.1109/GAAS.2001.964367","DOIUrl":null,"url":null,"abstract":"This work reports on efforts to demonstrate AlGaN/GaN Low Noise Amplifiers (LNAs) in epitaxial material designed to build power transistors. The hybrid LNA circuit produced a noise figure of 3 dB, a gain of 8.5 dB, an input return loss of -6.5 dB and an output return loss of -9 dB at 4 GHz. Further, devices in an enhanced process have improved noise characteristics and more realizable match conditions. These device enhancements will enable robust X-band LNA demonstrations.","PeriodicalId":269944,"journal":{"name":"GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 23rd Annual Technical Digest 2001 (Cat. No.01CH37191)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2001-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 23rd Annual Technical Digest 2001 (Cat. No.01CH37191)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GAAS.2001.964367","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
This work reports on efforts to demonstrate AlGaN/GaN Low Noise Amplifiers (LNAs) in epitaxial material designed to build power transistors. The hybrid LNA circuit produced a noise figure of 3 dB, a gain of 8.5 dB, an input return loss of -6.5 dB and an output return loss of -9 dB at 4 GHz. Further, devices in an enhanced process have improved noise characteristics and more realizable match conditions. These device enhancements will enable robust X-band LNA demonstrations.