Water Film Attenuation of Radio Antenna

HIREC: Super Hydrophobic Coating for Antenna, Radome and Other Public Infrastructure

Water film attenuation of over 5dB in radio reception may occur at water film thickness of 0.15mm and radio frequency of 12GHz.

Rainfall forms water film on antenna surfaces. The water film may cause water film attenuation in radio reception. The water film attenuation is calculated for radio frequency of 3 -25GHz and water film thickness of 0.05 – 0.20 mm.