Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants

Table 2

Parameters and results for performance evaluation tests.

Parameters of link budget	Frequency (2.4 GHz)	Frequency (5.8 GHz)
Transmitted power ()	30 dBm	30 dBm
Transmitter antenna gain ()	6 dB	9 dB
Loss in free space ()	28 dB (in 25 cm)	35.6 dB (in 25 cm)
	34 dB (in 0.5 m)	41.68 dB (in 0.5 m)
Receiver antenna gain ()	3.2 dB	4.7 dB
Loss in body tissues () [22]	15 dB	22 dB
Received power by antenna in IPG ()	0.41 mW (in 25 cm)	0.04 mW (in 25 cm)
	0.1 mW (in 0.5 m)	0.01 mW (in 0.5 m)