Table 2.

Reflection and transmission measurement parameters.

Parameter	Value
Sample size	width: 60 mm, height: 40–45 mm, length: 350–500 mm
Effective scan area	20 mm × 120 mm on every sample surface
Probe dimensions	aperture: width: 10.7 mm, height: 4.3 mm with a flange 23 × 23 mm (show in Figure 2b)
Δx, Δy	2 mm, 2 mm
Frequency band	15 GHz–20 GHz
Number of linear frequency points	401
Stand-off distance	0.1 cm and 2.0 cm