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What is High-Efficiency EDGE Amplifiers Using J-PHEMT about?

This document discusses high efficiency amplifier designs for EDGE applications using enhancement-mode junction PHEMT technology. It proposes two main approaches - a linear/backed-off amplifier and a saturated amplifier using envelope elimination and restoration. Simulation results show the saturated EER approach can achieve efficiencies of 40-45% while meeting EVM and ACPR specifications, but requires additional amplitude and phase correction loops to compensate for distortions over the signal envelope. Th

Author

Chelva Selva

Language

EN