Attenuation by a Human Body and Trees as well as Material Penetration Loss in 26 and 39 GHz Millimeter Wave Bands

Table 4

Penetration losses of the materials.

Material	Thickness	26 GHz	39 GHz
Wooden door of the laboratory	47.94 mm	5.50 dB	9.69 dB
Transparent glass door of the hall (one door)	12.85 mm	3.95 dB	4.59 dB
Transparent glass door of the hall (two doors)	25.70 mm	5.55 dB	9.45 dB
Frosted glass door of the small office	12.30 mm	4.10 dB	4.65 dB
Wooden door of the cabinet	19.82 mm	4.16 dB	5.59 dB