{"title":"用于LINC发射机的低功率全数字相位调制器对","authors":"Ping-Yuan Tsai, Tsan-Wen Chen, Chen-Yi Lee","doi":"10.1109/SOCC.2011.6085074","DOIUrl":null,"url":null,"abstract":"This paper presents a low-power all-digital phase modulator (PM) pair to generate constant-envelope signals for LINC transmitters. To reduce the power overhead, an open-loop delay line based phase shifter with a continuous locking scheme is adopted for the PM design. This design is implemented by 90 nm CMOS technology with active area of 0.1892 mm2. The PM provides 8-bit resolution with RMS error 0.33° at IF frequency 80 MHz, and the power consumption is only 885 uW with 1.0 V supply voltage. Considering a 64-QAM OFDM system, the EVM of −31.87 dB can be achieved by using the proposed PM pair.","PeriodicalId":365422,"journal":{"name":"2011 IEEE International SOC Conference","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A low-power all-digital phase modulator pair for LINC transmitters\",\"authors\":\"Ping-Yuan Tsai, Tsan-Wen Chen, Chen-Yi Lee\",\"doi\":\"10.1109/SOCC.2011.6085074\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a low-power all-digital phase modulator (PM) pair to generate constant-envelope signals for LINC transmitters. To reduce the power overhead, an open-loop delay line based phase shifter with a continuous locking scheme is adopted for the PM design. This design is implemented by 90 nm CMOS technology with active area of 0.1892 mm2. The PM provides 8-bit resolution with RMS error 0.33° at IF frequency 80 MHz, and the power consumption is only 885 uW with 1.0 V supply voltage. Considering a 64-QAM OFDM system, the EVM of −31.87 dB can be achieved by using the proposed PM pair.\",\"PeriodicalId\":365422,\"journal\":{\"name\":\"2011 IEEE International SOC Conference\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-11-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 IEEE International SOC Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SOCC.2011.6085074\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 IEEE International SOC Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SOCC.2011.6085074","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A low-power all-digital phase modulator pair for LINC transmitters
This paper presents a low-power all-digital phase modulator (PM) pair to generate constant-envelope signals for LINC transmitters. To reduce the power overhead, an open-loop delay line based phase shifter with a continuous locking scheme is adopted for the PM design. This design is implemented by 90 nm CMOS technology with active area of 0.1892 mm2. The PM provides 8-bit resolution with RMS error 0.33° at IF frequency 80 MHz, and the power consumption is only 885 uW with 1.0 V supply voltage. Considering a 64-QAM OFDM system, the EVM of −31.87 dB can be achieved by using the proposed PM pair.
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