A Dual-Band Antenna for RF Energy Harvesting Systems in Wireless Sensor Networks

Table 2

Overview of RF harvesting energy antenna.

Type of antenna	Frequency	Maximum voltage	Maximum performance	Energy harvested	Reference
Folded patch antenna; Maximum power received is −10 dBm	2.4 GHz	n/a	n/a	373,248 μW	[22]
Spiral antenna; Maximum power received is −42 dBm	2.4 GHz	n/a	0.60%	400 pW	[23]
Patch antenna	500–700 MHz	134 mV	18.2%; (Pin = −20 dBm)	n/a	[24]
Loop antenna	954 kHz	520 mV	n/a	60.4 μJ	[25]