A Twin Spiral Planar Antenna for UWB Medical Radars

Table 2

Tissues electrical parameters at the end of diastole (𝜀_𝑑 and 𝜎_𝑑) and at the end of systole (𝜀_𝑠 and 𝜎_𝑠).

	𝜀𝑑	𝜀𝑠	𝜎𝑑 (S/m)	𝜎𝑠 (S/m)
Skin	35.77	36.13	3.06	3.11
Muscle	49.54	49.63	4.04	4.07
Heart wall	50.27	50.34	4.86	4.87
Lung	44.86	46.68	3.94	4.23