{"title":"完全集成的有源CMOS矢量调制器，用于802.11a兼容的分集收发器","authors":"N. Joram, U. Mayer, R. Eickhoff, F. Ellinger","doi":"10.1109/COMCAS.2009.5386002","DOIUrl":null,"url":null,"abstract":"In this paper, a CMOS vector modulator designed for smart antenna arrays at 5.5 GHz is presented. A quadrature all pass filter and sign select switches yield two orthogonal signal paths. Two variable gain amplifiers with strongly reduced phase shift of only ±6 ° are used to weight these paths. It has a phase control range of 360 ° and a gain range of −20 dB to 2.8 dB. The input-referred IP3 is −7 dBm at maximum gain. The current drawn from a 1.5 V supply amounts 12 mA. Using a 180 nm technology, the chip core area amounts 1.2×0.8 mm².","PeriodicalId":372928,"journal":{"name":"2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":"{\"title\":\"Fully integrated active CMOS vector modulator for 802.11a compliant diversity transceivers\",\"authors\":\"N. Joram, U. Mayer, R. Eickhoff, F. Ellinger\",\"doi\":\"10.1109/COMCAS.2009.5386002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, a CMOS vector modulator designed for smart antenna arrays at 5.5 GHz is presented. A quadrature all pass filter and sign select switches yield two orthogonal signal paths. Two variable gain amplifiers with strongly reduced phase shift of only ±6 ° are used to weight these paths. It has a phase control range of 360 ° and a gain range of −20 dB to 2.8 dB. The input-referred IP3 is −7 dBm at maximum gain. The current drawn from a 1.5 V supply amounts 12 mA. Using a 180 nm technology, the chip core area amounts 1.2×0.8 mm².\",\"PeriodicalId\":372928,\"journal\":{\"name\":\"2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems\",\"volume\":\"44 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"16\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/COMCAS.2009.5386002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/COMCAS.2009.5386002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Fully integrated active CMOS vector modulator for 802.11a compliant diversity transceivers
In this paper, a CMOS vector modulator designed for smart antenna arrays at 5.5 GHz is presented. A quadrature all pass filter and sign select switches yield two orthogonal signal paths. Two variable gain amplifiers with strongly reduced phase shift of only ±6 ° are used to weight these paths. It has a phase control range of 360 ° and a gain range of −20 dB to 2.8 dB. The input-referred IP3 is −7 dBm at maximum gain. The current drawn from a 1.5 V supply amounts 12 mA. Using a 180 nm technology, the chip core area amounts 1.2×0.8 mm².
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