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

Table 4

Parameters for radial line 2 in the outdoor experiment, azimuth = 0^°, elevation = 5^°.

Serial number	Radial distance; [ft]	RSSI [mW]; (directional antenna)	RSSI [mW]; (omnidirectional antenna)	[s]; (directional antenna)	[s]; (omnidirectional antenna)
1	10	0.8311 (0.047)	0.3317 (0.00029)	3.7	12.8
2	15	0.4063 (0.00093)	NC	8	NC
3	20	0.2216 (0.00011)	NC	25.6	NC