Wearable BLE Wireless Sensor Based on U-Shaped EBG Monopole Antenna

Table 2

Properties of the human arm.

	Skin	Fat	Muscle	Bone
Dielectric constant	38	5.28	52.79	11.38
Conductivity (S/m)	1.46	0.1	1.73	0.39
Density	1100	1100	1060	1850
Thickness (mm)	4	4	16	16