Kenta Sahara, K. Takano, S. Hara, A. Kasamatsu, Y. Umeda
{"title":"A Wideband Multi-Stage Amplifier with Low Group-Delay Variation Using Transistors with Low Nodal Quality Factors in Sub-Terahertz Band","authors":"Kenta Sahara, K. Takano, S. Hara, A. Kasamatsu, Y. Umeda","doi":"10.1109/imarc49196.2021.9714671","DOIUrl":null,"url":null,"abstract":"We propose a simple way to increase the bandwidth and reduce the group-delay variation of a multi-stage amplifier in the sub-terahertz range. The method is to use transistors with low nodal quality factors [3] for the amplifier. To verify the proposed method, a four-stage amplifier is fabricated using a $0.13\\mu\\mathrm{m}$ SiGe BiCMOS process. The amplifier has the maximum gain of 5.42dB, the 3dB bandwidth of over 30GHz, 12.8ps.","PeriodicalId":226787,"journal":{"name":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE MTT-S International Microwave and RF Conference (IMARC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/imarc49196.2021.9714671","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
We propose a simple way to increase the bandwidth and reduce the group-delay variation of a multi-stage amplifier in the sub-terahertz range. The method is to use transistors with low nodal quality factors [3] for the amplifier. To verify the proposed method, a four-stage amplifier is fabricated using a $0.13\mu\mathrm{m}$ SiGe BiCMOS process. The amplifier has the maximum gain of 5.42dB, the 3dB bandwidth of over 30GHz, 12.8ps.