{"title":"A system-on-package analog synchronous QPSK demodulator for ultra-high rate 60 GHz wireless communications","authors":"A. Çağrı Ulusoy, H. Schumacher","doi":"10.1109/MWSYM.2011.5972692","DOIUrl":null,"url":null,"abstract":"A highly efficient QPSK demodulator module is presented, which synchronizes carrier phase and frequency in the analog domain by feed-forward carrier recovery. By this, the need for high-precision ADCs is eliminated, which become especially problematic for data rates exceeding several Gbit/s. The QPSK demodulator is realized as a SiGe HBT MMIC and is packaged on a standard low cost substrate material, where a narrow-bandwidth microstrip bandpass filter is also integrated. Synchronous demodulation of up to 5 Gbit/s data rate is demonstrated. Moreover, it is experimentally validated that through the presented feed-forward carrier recovery a substantial amount of phase noise suppression can be achieved.","PeriodicalId":294862,"journal":{"name":"2011 IEEE MTT-S International Microwave Symposium","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 IEEE MTT-S International Microwave Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2011.5972692","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
A highly efficient QPSK demodulator module is presented, which synchronizes carrier phase and frequency in the analog domain by feed-forward carrier recovery. By this, the need for high-precision ADCs is eliminated, which become especially problematic for data rates exceeding several Gbit/s. The QPSK demodulator is realized as a SiGe HBT MMIC and is packaged on a standard low cost substrate material, where a narrow-bandwidth microstrip bandpass filter is also integrated. Synchronous demodulation of up to 5 Gbit/s data rate is demonstrated. Moreover, it is experimentally validated that through the presented feed-forward carrier recovery a substantial amount of phase noise suppression can be achieved.
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