Miniaturized Ultrawideband Microstrip Antenna for IoT-Based Wireless Body Area Network Applications

Table 2

Electrical properties of the human body model at 4 GHz.

Layer	Relative permittivity	Conductivity (S/m)	Density (kg/m3)	Thickness (mm)
Skin	41.4	1.49	1001	1.6
Fat	5.46	0.11	900	8
Muscle	55	1.77	1006	10
Bone	18.5	0.82	1008	5.4