{"title":"A 0.32nJ/bit noncoherent UWB impulse Radio transceiver with baseband synchronization and a fully digital transmitter","authors":"A. Mehra, M. Sturm, D. Hedin, R. Harjani","doi":"10.1109/RFIC.2013.6569510","DOIUrl":null,"url":null,"abstract":"This paper presents a low-power noncoherent ultrawideband (UWB) impulse-radio (IR) transceiver operating at 5GHz in 0.13-μm CMOS. The super-regenerative amplifier (SRA) based energy-detection receiver utilizes early/late detection for a two-step baseband synchronization algorithm. A fully-digital transmitter generates a shaped output pulse of 1GHz 3-dB bandwidth. DLLs provide a PVTtolerant time-step resolution of 1ns over the entire symbol period and regulate the pulse generator center frequency. Measured results show a receiver efficiency of 0.32nJ/bit at 20.8Mb/s and operation with inputs as low as -70dBm. The transmitter outputs -31dBm (0.88pJ/pulse at 1Mpulse/s) with a dynamic (energy) efficiency of 16pJ/pulse.","PeriodicalId":203521,"journal":{"name":"2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)","volume":"478 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RFIC.2013.6569510","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
This paper presents a low-power noncoherent ultrawideband (UWB) impulse-radio (IR) transceiver operating at 5GHz in 0.13-μm CMOS. The super-regenerative amplifier (SRA) based energy-detection receiver utilizes early/late detection for a two-step baseband synchronization algorithm. A fully-digital transmitter generates a shaped output pulse of 1GHz 3-dB bandwidth. DLLs provide a PVTtolerant time-step resolution of 1ns over the entire symbol period and regulate the pulse generator center frequency. Measured results show a receiver efficiency of 0.32nJ/bit at 20.8Mb/s and operation with inputs as low as -70dBm. The transmitter outputs -31dBm (0.88pJ/pulse at 1Mpulse/s) with a dynamic (energy) efficiency of 16pJ/pulse.
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