A Review of 5G Power Amplifier Design at cm-Wave and mm-Wave Frequencies

Figure 16

(a) Architecture of the proposed ET transmitter in [35]; (b) measured normalized amplitude of the time-domain signal envelope at the HPA input and output under ET operation with and without DPD and corresponding time-domain dynamic bias provided by the power-DAC at the HPA drain bias port, © 2015 IEEE.

(a)

(b)