Characterization and Modeling of Received Signal Strength and Charging Time for Wireless Energy Transfer

Table 3

Parameters for radial line 1 in the outdoor experiment, azimuth = elevation = 0^°.

Serial number	Radial distance; [ft]	RSSI [mW]; (directional antenna)	RSSI [mW]; (omnidirectional antenna)	[s]; (directional antenna)	[s]; (omnidirectional antenna)
1	10	1.0003; (0.00025)	0.4000; (0.00033)	3.7	9.1
2	15	0.4191; (0.00047)	0.2012; (0.00013)	8	21.3
3	20	0.2770; (0.0002)	NC^*	16	NC
4	25	0.1857; (0.00006)	NC	32	NC
5	30	0.13; (0)	NC	197.8	NC

No charging.