A power equalization RF-PWM method with third and fifth harmonic
AbstractTo reduce the power loss of the SMPA unit, this paper proposes a power
equalization RF-PWM method with third and fifth harmonic elimination.
Based on the third and fifth harmonic cancellation, this method achieves
output power equalization of SMPA by controlling the width of 3-level
sub-pulses to be the same. Moreover, the equalization of each switch
transistor is realized by outphasing architectures. Finally, the
feasibility of the method is verified by simulation results. For QPSK
and 16QAM signals with a carrier frequency of 200 MHz, the proposed
method achieves the same output power of each SMPA unit.