Solar control glass reduce the amplitude of radio waves

It is a well known phenomenon that the amplitude of radio waves propagating through solar control glass is greatly reduced, because the electrical conductive film on the surface of solar control glass reflects the incident radio waves withfrequencies lower than that of the plasma oscillation of free electrons in the conductive film. As a result of the moment method analysis of the scattering problem in the spectral domain, it was found that the amplitude of radio waves was not damped when the conductive film was divided into discontinuous segments with a periodic array because the motion of free electrons induced by the magnetic field of incident radio waves is restricted in the divided film. The effect of dividing the conductive film of solar control glass has been examined experimentally in the television wave region.


H. Nakashima et al, Effect of segmentation of conductive coatings on the radio wave
transmission through solar control sheet glass,
Journal of Non-Crystalline Solids 178 (1994) 176-181