A Design of CMOS Class-E Power Amplifier with Phase Correction for Envelope Elimination and Restoration (EER)/Polar Systems

SUMMARY A circuit technique to correct Vdd/PM distortion and improve efficiency as supply modulation of cascode class-E PAs has been proposed. The experimental result shows that the phase distortion can be improved from 20 degrees to 5 degrees. Moreover, a system co-simulation result demonstrated that the EVM can be improved from −17 dB to −19 dB.