{"title":"4.5 GHz ~ 5.8 GHz可调δσ数字接收机","authors":"T. Chalvatzis, S. Voinigescu","doi":"10.1109/MWSYM.2008.4633136","DOIUrl":null,"url":null,"abstract":"A digital receiver tunable from 4.5 GHz to 5.8 GHz is reported for the first time. The circuit is based on a 40 GS/s continuous-time bandpass δσ ADC with Q-enhancement. In addition to the center frequency, the receiver bandwidth is independently tunable between 120 MHz and 500 MHz. An SNR of 37.9 dB is measured at 5 GHz over 500 MHz bandwidth. Center frequency scaling of bandpass digital receivers from 2 GHz to 5.8 GHz is shown without changing the digital section and clock frequency of the ADC. The circuit, which consumes 2.09W from 2.5V supply, can be used as a broadband RF sampler for 5.8 GHz WLAN, or as the digital IF of a 60 GHz radio.","PeriodicalId":273767,"journal":{"name":"2008 IEEE MTT-S International Microwave Symposium Digest","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A 4.5 GHz to 5.8 GHz tunable δσdigital receiver with Q enhancement\",\"authors\":\"T. Chalvatzis, S. Voinigescu\",\"doi\":\"10.1109/MWSYM.2008.4633136\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A digital receiver tunable from 4.5 GHz to 5.8 GHz is reported for the first time. The circuit is based on a 40 GS/s continuous-time bandpass δσ ADC with Q-enhancement. In addition to the center frequency, the receiver bandwidth is independently tunable between 120 MHz and 500 MHz. An SNR of 37.9 dB is measured at 5 GHz over 500 MHz bandwidth. Center frequency scaling of bandpass digital receivers from 2 GHz to 5.8 GHz is shown without changing the digital section and clock frequency of the ADC. The circuit, which consumes 2.09W from 2.5V supply, can be used as a broadband RF sampler for 5.8 GHz WLAN, or as the digital IF of a 60 GHz radio.\",\"PeriodicalId\":273767,\"journal\":{\"name\":\"2008 IEEE MTT-S International Microwave Symposium Digest\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-06-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 IEEE MTT-S International Microwave Symposium Digest\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2008.4633136\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE MTT-S International Microwave Symposium Digest","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2008.4633136","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 4.5 GHz to 5.8 GHz tunable δσdigital receiver with Q enhancement
A digital receiver tunable from 4.5 GHz to 5.8 GHz is reported for the first time. The circuit is based on a 40 GS/s continuous-time bandpass δσ ADC with Q-enhancement. In addition to the center frequency, the receiver bandwidth is independently tunable between 120 MHz and 500 MHz. An SNR of 37.9 dB is measured at 5 GHz over 500 MHz bandwidth. Center frequency scaling of bandpass digital receivers from 2 GHz to 5.8 GHz is shown without changing the digital section and clock frequency of the ADC. The circuit, which consumes 2.09W from 2.5V supply, can be used as a broadband RF sampler for 5.8 GHz WLAN, or as the digital IF of a 60 GHz radio.
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