DOHERTY AMPLIFIER

摘要

It is arranged that the temperature rise values of a plurality of doherty amplifiers combined in parallel be the same, thereby achieving a high efficiency of power amplification and an excellent distortion compensation. A carrier amplifying element heat-dissipator (106) includes, as amplifying elements having the same function, both a carrier amplifying element (C101) of a first doherty amplifier (101) and a carrier amplifying element (C102) of a second doherty amplifier (102). A peak amplifying element heat-dissipator (107) includes, as amplifying elements having the same function that is different from that of the carrier amplifying elements, both a peak amplifying element (P101) of the first doherty amplifier (101) and a peak amplifying element (P102) of the second doherty amplifier (102). A distributor (103) and a combiner (104) are used to connect the first and second doherty amplifiers (101,102) in parallel.