표 2. | Table 2. 전력증폭기 성능 요약 및 비교 | Performance summary and comparisons of power amplifier.

Ref.	CMOS technology	Amplifier topology	Supply [V]	Gain [dB]	Freq. [GHz]	S21 BW3dB [GHz]	Psat [dBm]
[4]	28 nm CMOS	1stage 2stack	2.2	13.6	28	-	19.8
[5]	28 nm CMOS	2stage CS	0.9	20.8	43	29~57	16.6
[6]	65 nm CMOS	1stage 3stack	3.6	17.5	38	-	24.8
[7]	28 nm CMOS	2stage 2stack	0.9/1.8	25.8	38.5	-	16.8
[8]	45 nm SOI	2stage 2stack	1/2	20.5	-	25.8~43.4	20.4
[9]	28 nm CMOS	2stage 2stack	0.9/1.8	20.5	-	19.7~43.8	20.3
This work	40 nm CMOS	2stage 2stack	0.9/1.8	27.8	34.6	30.2~38.5	16.9