표 1. | Table 1. 기발표된 CMOS (a) 정류기와 (b) 직류-직류 변환 기의 성능 비교 | Performance comparison of the CMOS rectifier and DC-DC converter with previous works.

(a)
Reference	[9]	[10]	[11]	This work
Process	0.18 um	65 nm	0.13 um	28 nm
Rectifier topology	Dickson	Dickson	Cross coupled	Dickson
Vout (V)	0.2∼1.7	1∼1.5	0.9∼1.5	0.9∼13.7
Pin (dBm)	6∼12	−19	−20	−8∼20
Frequency (GHz)	2.4	2.4	2.4	2.4
Maximum efficiecny	2.5 %	31 %	55 %	66 %
(b)
Reference	[12]	[13]	[14]	This work
Process	0.18 um	0.18 um	28 nm	28 nm
Conversion type	Step up/down	Step down	Step down	Step up/down
Vout (V)	0.4∼2.2	0.9∼1.5	0.95	1.6∼2.2
Vin (V)	0.9∼1.5	3.4∼4.3	3.2	1.2∼5
Switching freq (MHz)	0.2	0.8∼1.7	N/A	5
Maximum efficiecny	68 %	72 %	82 %	80 %