{"title":"用于无锯楔形发射机的CMOS db线性RF VGA","authors":"H. Akyol, B. Agarwal, H. Firouzkouhi, D. Badillo","doi":"10.1109/RWS.2010.5434273","DOIUrl":null,"url":null,"abstract":"A CMOS dB-linear RF variable gain amplifier (VGA) that can provide a variable gain of 25-dB is implemented. The 25-dB of this range is achieved by a dB-linear V-I converter, which includes current limiting circuitry to reduce the gain variation due to process and temperature at maximum and minimum output power levels. The circuits are designed in a 0.13-um RF CMOS process. The measurement results demonstrate −45 dBc ACLR, −165-dBc/Hz Rx-band noise at 5-dBm output power and 25-dB dynamic gain control range in UMTS band for WCDMA. The RF VGA consumes 30-mA of current at maximum gain from a 1.8-V supply.","PeriodicalId":334671,"journal":{"name":"2010 IEEE Radio and Wireless Symposium (RWS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A CMOS dB-linear RF VGA for SAW-less WEDGE transmitters\",\"authors\":\"H. Akyol, B. Agarwal, H. Firouzkouhi, D. Badillo\",\"doi\":\"10.1109/RWS.2010.5434273\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A CMOS dB-linear RF variable gain amplifier (VGA) that can provide a variable gain of 25-dB is implemented. The 25-dB of this range is achieved by a dB-linear V-I converter, which includes current limiting circuitry to reduce the gain variation due to process and temperature at maximum and minimum output power levels. The circuits are designed in a 0.13-um RF CMOS process. The measurement results demonstrate −45 dBc ACLR, −165-dBc/Hz Rx-band noise at 5-dBm output power and 25-dB dynamic gain control range in UMTS band for WCDMA. The RF VGA consumes 30-mA of current at maximum gain from a 1.8-V supply.\",\"PeriodicalId\":334671,\"journal\":{\"name\":\"2010 IEEE Radio and Wireless Symposium (RWS)\",\"volume\":\"13 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-01-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 IEEE Radio and Wireless Symposium (RWS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RWS.2010.5434273\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 IEEE Radio and Wireless Symposium (RWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RWS.2010.5434273","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A CMOS dB-linear RF VGA for SAW-less WEDGE transmitters
A CMOS dB-linear RF variable gain amplifier (VGA) that can provide a variable gain of 25-dB is implemented. The 25-dB of this range is achieved by a dB-linear V-I converter, which includes current limiting circuitry to reduce the gain variation due to process and temperature at maximum and minimum output power levels. The circuits are designed in a 0.13-um RF CMOS process. The measurement results demonstrate −45 dBc ACLR, −165-dBc/Hz Rx-band noise at 5-dBm output power and 25-dB dynamic gain control range in UMTS band for WCDMA. The RF VGA consumes 30-mA of current at maximum gain from a 1.8-V supply.
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