Effect of Earth Ground and Environment on Body-Centric Communications in the MHz Band

Table 1

Input power and input impedance of the transmitter.

Model name	Input power (W)	Impedance (Ω)
		Real	Imaginary
Ground	1.47 × 10^−6	20.9	−2825.6
3 cm up	1.43 × 10^−6	20.4	−2826.1
40 cm up	1.43 × 10^−6	20.2	−2826.2
Free space	1.43 × 10^−6	20.4	−2826.2