Table 3.

Performance comparison with previous works.

	This Work		[2]	[3]	[21]	[22]	[23]	[24]
	Rectifier (MDDE)	Rectifier (LDDE)
Tech.	0.18 μm		0.35 μm	0.18 μm	0.18 μm	0.35 μm	0.35 μm	0.25 μm
Type	Bias-flip/diode equivalent		Bias-flip	Active FBR	S-SSHI	Energy Invest	Inductor-less	SSHI
VP (V)	2.89	4.34	2.8	2.8	2.2	2.6	2.5	4.9
f0 (Hz)	200		225	200	200	143	82	144
PE transducer	Thrive K7520BP2		V22B Mide	Circuit model	Circuit model	V22B Mide	V22W Mide	V22B Mide
Self-power	Y	N	N	N	Y	N	N	Y
VRECT (V)	2.4	3.36	3.2	2.78	3.6	3.7	1.0	3.9
POUT (μW)	288	564	53	81	74	52	35	136
Efficiency (%)	78.4	68.1	58	90	89.5	69	77	85