{"title":"A GaAs-based 3-40 GHz distributed mixer with cascode FET cells","authors":"W. Ko, Y. Kwon","doi":"10.1109/RFIC.2004.1320638","DOIUrl":null,"url":null,"abstract":"A broadband MMIC distributed mixer with cascode FET cells was developed using commercial GaAs PHEMT foundry. The fabricated distributed mixer with a size of 1.8 mm/spl times/1.0 mm showed a high conversion gain of 3.6 dB/spl plusmn/0.5 dB over 3 to 40 GHz RF frequency ranges at the low LO power level of 5 dBm with a fixed IF frequency of 1 GHz. An average single-sideband noise figure was 11.7 dB without IF post amplification. The LO-to-IF and LO-to-RF isolations were better than 19 dB over the entire operating frequency band. To our knowledge, this corresponds to the highest gain-bandwidth product (85 GHz) achieved from the wideband mixers.","PeriodicalId":140604,"journal":{"name":"2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers","volume":"61 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RFIC.2004.1320638","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 22
Abstract
A broadband MMIC distributed mixer with cascode FET cells was developed using commercial GaAs PHEMT foundry. The fabricated distributed mixer with a size of 1.8 mm/spl times/1.0 mm showed a high conversion gain of 3.6 dB/spl plusmn/0.5 dB over 3 to 40 GHz RF frequency ranges at the low LO power level of 5 dBm with a fixed IF frequency of 1 GHz. An average single-sideband noise figure was 11.7 dB without IF post amplification. The LO-to-IF and LO-to-RF isolations were better than 19 dB over the entire operating frequency band. To our knowledge, this corresponds to the highest gain-bandwidth product (85 GHz) achieved from the wideband mixers.
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