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In this paper, a highly efficient class-G supply modulator targeting high-power wideband envelope tracking applications is presented. The maximum output power using a 50% duty cycle at 100-MHz switching frequency is 62 W for a switching between 30 and 50 V delivered in a 25-$\Omega $ load. The modulator including its driver circuit reaches an overall efficiency in the range of 97%–88% for switching...
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