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- W2272673147 abstract "Envelope tracking (ET) is by now a well-established technique that improves the efficiency of microwave power amplifiers (PAs) compared to what can be obtained with conventional class-AB or class-B operation for amplifying signals with a time-varying envelope, such as most of those used in present wireless communication systems. ET is poised to be deployed extensively in coming generations of amplifiers for cellular handsets because it can reduce power dissipation for signals using the long-term evolution (LTE) standard required for fourthgeneration (4G) wireless systems, which feature high peak-to-average power ratios (PAPRs). The ET technique continues to be actively developed for higher carrier frequencies and broader bandwidths. This article reviews the concepts and history of ET, discusses several applications currently on the drawing board, presents challenges for future development, and highlights some directions for improving the technique." @default.
- W2272673147 created "2016-06-24" @default.
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- W2272673147 date "2016-03-01" @default.
- W2272673147 modified "2023-09-30" @default.
- W2272673147 title "ET Comes of Age: Envelope Tracking for Higher-Efficiency Power Amplifiers" @default.
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- W2272673147 doi "https://doi.org/10.1109/mmm.2015.2505699" @default.
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