Horng-Yuan Shih, Peng-Un Su, Yen-Horng Chen, Tz-Heng Fu, Jen-Lung Liu, K. Juang, M. Kuo, Chun-Ming Hsu
{"title":"A highly-integrated inductor-less SiGe W-CDMA transmitter","authors":"Horng-Yuan Shih, Peng-Un Su, Yen-Horng Chen, Tz-Heng Fu, Jen-Lung Liu, K. Juang, M. Kuo, Chun-Ming Hsu","doi":"10.1109/RFIC.2004.1320646","DOIUrl":null,"url":null,"abstract":"A highly-integrated W-CDMA transmitter, which consists of an IQ modulator, an intermediate frequency variable gain amplifier, an up-conversion mixer and a radio frequency variable gain amplifier is presented. All functional blocks in the transmitter are inductor-less, significantly reducing the size of the chip of the transmitter. The measured gain control range exceeded 80 dB and the gain control resolution is 1 dB, meeting the requirements of the W-CDMA system. The measured maximum output power is -2.5 dBm. As the output power varies from -82.5 dBm to 2.5 dBm, the current consumption of the transmitter IC varies from 44 mA to 88 mA. The measured error vector magnitude (EVM) is 1.86% at maximum output power.","PeriodicalId":140604,"journal":{"name":"2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","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.2004.1320646","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
A highly-integrated W-CDMA transmitter, which consists of an IQ modulator, an intermediate frequency variable gain amplifier, an up-conversion mixer and a radio frequency variable gain amplifier is presented. All functional blocks in the transmitter are inductor-less, significantly reducing the size of the chip of the transmitter. The measured gain control range exceeded 80 dB and the gain control resolution is 1 dB, meeting the requirements of the W-CDMA system. The measured maximum output power is -2.5 dBm. As the output power varies from -82.5 dBm to 2.5 dBm, the current consumption of the transmitter IC varies from 44 mA to 88 mA. The measured error vector magnitude (EVM) is 1.86% at maximum output power.
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