표 1. | Table 1. 도허티 전력 증폭기 성능 요약 | The performance summary of the Doherty power amplifier.

Ref. [8] Ref. [9] Ref. [10] This work
Frequency (GHz) 4.9 2.5~2.7 2.45 3.5
Gain (dB) 15 21 31.7 26.56
Psat (dBm) 30 27 32.8 27.6
S11 (dB) <−10 - - <−10
S22 (dB) <−10 - - <−10
PAEsat (%) 46 37 37.5 34.3
PAElinear at EVM −25 dB (%) - - - 23.18
PAElinear at 6 dB PBO (%) 26 22 22 20.5
Modulation - 8.75MHz16-QAM 20MHz64-QAM 100MHz64 QAM
EVM (%) - 3.15 3.15 5.6
Pavg (dBm) - 24.6 16.4 22.1
Tech. 250nm GaAs pHEMT InGaP/GaAs HBT GaAs HBT 500nm GaAs HBT