Table 1.

Characteristics of the RF-EH prototypes developed in [14]

RF-EH circuit	Sensitivity	Maximum η0max	Maximum P0max
Prototype 1	−7 dBm for VoutDC = 1.8 V	22% at PRF = 0 dBm	0.22 mW at PRF = 0 dBm
Prototype 2	−9 dBm for VoutDC = 1.8 V	36% at PRF = 0 dBm	1.33 mW at PRF = 6 dBm
Prototype 3	−8 dBm for VoutDC = 1.8 V	32% at PRF = 1 dBm	1.16 mW at PRF = 6 dBm