{"title":"A 48GHz-78GHz MMIC sub-harmonic pumped image rejection mixer","authors":"Shengzhou Zhang, Lingling Sun, J. Wen, Jun Liu","doi":"10.1109/SMELEC.2014.6920853","DOIUrl":null,"url":null,"abstract":"The paper presents the design of a 48-78GHz sub-harmonic pumped image rejection mixer (SHIRM) based on a 3μm GaAs technology. The SHIRM contains two identical 2nd APDP-Based SHP mixers, a modified quadrature-phase RF Lange coupler and an in-phase LO Wilkinson power divider. The quasi-lumped topology is utilized with the compact size of 1.7×1.6 mm2. The conversion gain of -14±1dB and the minimum image rejection radio of 20dB over the frequency range 48-78GHz covering the whole V-band are simulated, with fixed IF of 1GHz and the LO input power of 12dBm. The 3dB bandwidth is superior to 30GHz. The LO-to-RF and 2LO-to-RF isolations are superior to 25dB and 70dB, respectively. The 2nd harmonic component of LO signal is suppressed by the symmetrical structure.","PeriodicalId":268203,"journal":{"name":"2014 IEEE International Conference on Semiconductor Electronics (ICSE2014)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE International Conference on Semiconductor Electronics (ICSE2014)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SMELEC.2014.6920853","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
The paper presents the design of a 48-78GHz sub-harmonic pumped image rejection mixer (SHIRM) based on a 3μm GaAs technology. The SHIRM contains two identical 2nd APDP-Based SHP mixers, a modified quadrature-phase RF Lange coupler and an in-phase LO Wilkinson power divider. The quasi-lumped topology is utilized with the compact size of 1.7×1.6 mm2. The conversion gain of -14±1dB and the minimum image rejection radio of 20dB over the frequency range 48-78GHz covering the whole V-band are simulated, with fixed IF of 1GHz and the LO input power of 12dBm. The 3dB bandwidth is superior to 30GHz. The LO-to-RF and 2LO-to-RF isolations are superior to 25dB and 70dB, respectively. The 2nd harmonic component of LO signal is suppressed by the symmetrical structure.
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