A Directional Antenna in a Matching Liquid for Microwave Radar Imaging

Table 3

Dielectric properties of breast tissues and the materials used in the experimental setup.

Material	(3 GHz)	σ (3 GHz)
Skin	35	1.2 S/m
Low-density breast tissue	9	0.4 S/m
Glycerin	8.9	0.72 S/m
Fibroglandular tissue	25–32	1.5 S/m
Polymer-distilled water mixture	30–36	1.6 S/m
Tumor	55	2.1 S/m
Fructose-saline mixture	53	1.9 S/m
Canola oil	2.5	0.035 S/m
Styrene-acrylonitrile	2.6	0.001 S/m