{"title":"数字密集型发射机采用射频脉宽调制物联网应用","authors":"Hyejeong Song, R. Gharpurey","doi":"10.1109/RFIC.2015.7337727","DOIUrl":null,"url":null,"abstract":"A CMOS RF-PWM transmitter with a Class-D power amplifier (PA) is proposed for Internet of Things (IoT) applications. The transmitter utilizes two PLL-based PWM generators to convert baseband signals into an RF-PWM signal without an upconverter. For an LTE signal with a 1.4 MHz bandwidth and a 6.4 dB peak-to-average ratio (PAR), the RF-PWM transmitter achieves a power-added efficiency (PAE) of 17.5%, an error vector magnitude (EVM) of -24.9 dB, and an adjacent channel leakage ratio (ACLR) of -31 dBc at an average output power of 16.1 dBm. The transmitter achieves a peak output power of 22.4 dBm with 46.6% PAE, and 38.8% efficiency for the full RF-PWM transmitter including PAs.","PeriodicalId":121490,"journal":{"name":"2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Digitally intensive transmitter employing RF pulse width modulation for IoT applications\",\"authors\":\"Hyejeong Song, R. Gharpurey\",\"doi\":\"10.1109/RFIC.2015.7337727\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A CMOS RF-PWM transmitter with a Class-D power amplifier (PA) is proposed for Internet of Things (IoT) applications. The transmitter utilizes two PLL-based PWM generators to convert baseband signals into an RF-PWM signal without an upconverter. For an LTE signal with a 1.4 MHz bandwidth and a 6.4 dB peak-to-average ratio (PAR), the RF-PWM transmitter achieves a power-added efficiency (PAE) of 17.5%, an error vector magnitude (EVM) of -24.9 dB, and an adjacent channel leakage ratio (ACLR) of -31 dBc at an average output power of 16.1 dBm. The transmitter achieves a peak output power of 22.4 dBm with 46.6% PAE, and 38.8% efficiency for the full RF-PWM transmitter including PAs.\",\"PeriodicalId\":121490,\"journal\":{\"name\":\"2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)\",\"volume\":\"95 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-05-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RFIC.2015.7337727\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RFIC.2015.7337727","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A CMOS RF-PWM transmitter with a Class-D power amplifier (PA) is proposed for Internet of Things (IoT) applications. The transmitter utilizes two PLL-based PWM generators to convert baseband signals into an RF-PWM signal without an upconverter. For an LTE signal with a 1.4 MHz bandwidth and a 6.4 dB peak-to-average ratio (PAR), the RF-PWM transmitter achieves a power-added efficiency (PAE) of 17.5%, an error vector magnitude (EVM) of -24.9 dB, and an adjacent channel leakage ratio (ACLR) of -31 dBc at an average output power of 16.1 dBm. The transmitter achieves a peak output power of 22.4 dBm with 46.6% PAE, and 38.8% efficiency for the full RF-PWM transmitter including PAs.
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