As described above, the present invention has advantageous effects in that it can provide {HEAD ~ an improved Doherty power amplifier} capable of achieving a further miniaturization and integration while maintaining an advantage in terms of efficiency and linearity of a Doherty power amplifier by employing an improved output and input matching method, and capable of operating more similar to {TAIL ~ the ideal operation} of a Doherty power amplifier by applying an improved input power division method thereto 
As described above , the present invention has advantageous effects in that it can provide { HEAD ~ an improved Doherty power amplifier } capable of achieving a further miniaturization and integration while maintaining an advantage in terms of efficiency and linearity of a Doherty power amplifier by employing an improved output and input matching method , and capable of operating more similar to { TAIL ~ the ideal operation } of a Doherty power amplifier by applying an improved input power division method thereto
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