William B. Sorsby, Timothy L. Kean, Scott L. Heibel, G. Hegazi
{"title":"实用的宽带高效部分包络跟踪功率放大器系统","authors":"William B. Sorsby, Timothy L. Kean, Scott L. Heibel, G. Hegazi","doi":"10.1109/RWS.2010.5434183","DOIUrl":null,"url":null,"abstract":"Spectrally-efficient high peak-to-average power ratio (PAPR) waveforms exhibit disadvantages compared to constant-envelope waveforms for frequency-agile systems when power-efficiency is paramount. EER and Envelope Tracking offer high efficiency but require precise adjustment and wide bandwidth power supplies/modulators. Frequency agility introduces implementation complexities when systems must tune wide frequency ranges or cover multiple channels. Combining advantages of Envelope Tracking and EER, a partial-envelope tracking power amplifier system demonstrates robust operation across multiple channels, requires no frequency dependent adjustments, and exhibits excellent spectral purity combined with high power-efficiency. Experimental UHF data shows 135 watts of output power with 55% efficiency using LDMOS devices, for uplink WCDMA (approximately 4dB PAPR).","PeriodicalId":334671,"journal":{"name":"2010 IEEE Radio and Wireless Symposium (RWS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Practical high-efficiency partial-Envelope Tracking power amplifier system with broadband applications\",\"authors\":\"William B. Sorsby, Timothy L. Kean, Scott L. Heibel, G. Hegazi\",\"doi\":\"10.1109/RWS.2010.5434183\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Spectrally-efficient high peak-to-average power ratio (PAPR) waveforms exhibit disadvantages compared to constant-envelope waveforms for frequency-agile systems when power-efficiency is paramount. EER and Envelope Tracking offer high efficiency but require precise adjustment and wide bandwidth power supplies/modulators. Frequency agility introduces implementation complexities when systems must tune wide frequency ranges or cover multiple channels. Combining advantages of Envelope Tracking and EER, a partial-envelope tracking power amplifier system demonstrates robust operation across multiple channels, requires no frequency dependent adjustments, and exhibits excellent spectral purity combined with high power-efficiency. Experimental UHF data shows 135 watts of output power with 55% efficiency using LDMOS devices, for uplink WCDMA (approximately 4dB PAPR).\",\"PeriodicalId\":334671,\"journal\":{\"name\":\"2010 IEEE Radio and Wireless Symposium (RWS)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-01-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 IEEE Radio and Wireless Symposium (RWS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RWS.2010.5434183\",\"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.2010.5434183","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Practical high-efficiency partial-Envelope Tracking power amplifier system with broadband applications
Spectrally-efficient high peak-to-average power ratio (PAPR) waveforms exhibit disadvantages compared to constant-envelope waveforms for frequency-agile systems when power-efficiency is paramount. EER and Envelope Tracking offer high efficiency but require precise adjustment and wide bandwidth power supplies/modulators. Frequency agility introduces implementation complexities when systems must tune wide frequency ranges or cover multiple channels. Combining advantages of Envelope Tracking and EER, a partial-envelope tracking power amplifier system demonstrates robust operation across multiple channels, requires no frequency dependent adjustments, and exhibits excellent spectral purity combined with high power-efficiency. Experimental UHF data shows 135 watts of output power with 55% efficiency using LDMOS devices, for uplink WCDMA (approximately 4dB PAPR).
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
