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2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)最新文献

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A digital-intensive F/PLL-based two-point modulator with a constant-gain DCO for linear FMCW generation 一个数字密集型的基于F/ pll的两点调制器，具有恒定增益的DCO，用于线性FMCW的产生
2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2015-08-01 DOI: 10.1109/RFIT.2015.7377931
N. Xu, Sitao Lv, W. Rhee, Zhihua Wang
{"title":"A digital-intensive F/PLL-based two-point modulator with a constant-gain DCO for linear FMCW generation","authors":"N. Xu, Sitao Lv, W. Rhee, Zhihua Wang","doi":"10.1109/RFIT.2015.7377931","DOIUrl":"https://doi.org/10.1109/RFIT.2015.7377931","url":null,"abstract":"This paper describes a frequency and phase-locked loop (F/PLL) based two-point modulator architecture for FMCW generation. A semi-digital ΔΣ PLL without a linear TDC is designed to form a nested-loop DCO with a constant gain in the F/PLL. A frequency error caused by a time-varying phase offset in the analog control path with a long modulation period can be mitigated by the loop gain of the frequency-locked loop (FLL). A prototype two-point modulator implemented in 0.18μm CMOS achieves frequency accuracy of <;100kHzrms for >10ms modulation period, showing that the proposed F/PLL can be a useful module for accurate detection and high velocity resolution FMCW radar systems.","PeriodicalId":422369,"journal":{"name":"2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116353180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
An ultra-low-power 32QAM RF transmitter 超低功耗32QAM射频发射机
2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2015-08-01 DOI: 10.1109/RFIT.2015.7377872
Hiroyuki Ito, A. Shirane, N. Ishihara, K. Masu
{"title":"An ultra-low-power 32QAM RF transmitter","authors":"Hiroyuki Ito, A. Shirane, N. Ishihara, K. Masu","doi":"10.1109/RFIT.2015.7377872","DOIUrl":"https://doi.org/10.1109/RFIT.2015.7377872","url":null,"abstract":"This paper introduces a quadrature modulation transmitter featuring the new IF-based quadrature backscattering technique to yield spectral efficient modulation schemes while reducing the power consumption. A 5.8 GHz RF-powered transceiver with the proposed transmitter was fabricated in 65 nm Si CMOS technology. The transmitter achieves 2.5 Mb/s, 32-QAM modulation while consuming 113 μW under 0.6 V power supply.","PeriodicalId":422369,"journal":{"name":"2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123779686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Linearization of RF CMOS power amplifiers 射频CMOS功率放大器的线性化
2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) Pub Date : 2015-08-01 DOI: 10.1109/RFIT.2015.7377918
G. Jeong, Bonhoon Koo, T. Joo, Songcheol Hong
{"title":"Linearization of RF CMOS power amplifiers","authors":"G. Jeong, Bonhoon Koo, T. Joo, Songcheol Hong","doi":"10.1109/RFIT.2015.7377918","DOIUrl":"https://doi.org/10.1109/RFIT.2015.7377918","url":null,"abstract":"This paper presents two kinds of linearization techniques for RF CMOS Power Amplifiers (PAs). One is the linearization technique using adaptively controlled biases of Common Source (CS) and Common Gate (CG) amplifier in a cascode structure The ethers are the power-cell linearization techniques such as large signal multi-gated transistor (LS-MGTR) of a CS amplifier and adaptive power cell (APC) of CG amplifier.","PeriodicalId":422369,"journal":{"name":"2015 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125628399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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