Patent ID: 8339196

Claim:
A combined cell Doherty power amplification apparatus comprising: a power splitter for splitting an input power, and outputting split powers to a carrier amplification unit and (N−1) peaking amplification units; the carrier amplification unit, including M carrier power amplifiers, for amplifying a power output from the power splitter; the (N−1) peaking amplification units, each of which includes M peaking power amplifiers, for amplifying the respective split powers output from the power splitter; and a power combiner for combining a power amplified by the carrier amplification unit and the respective split powers amplified by the (N−1) peaking amplification units, and for outputting combined power, wherein N represents an integer obtained by adding a number of the carrier amplification units and a number of the (N−1) peaking amplification units, and M represents an integer greater than 1.