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In Piesiewicz et al., (2005), we proposed an efficient method to model reflective properties of smooth building materials at THz frequencies. It is based on Fresnel equations, which are applied to measured material parameters to account for frequency dependence. However, this technique is adequate for smooth materials only as it neglects scattering losses.The method can be extended to rough materials...
Modeling propagation channels for future pico-cellular indoor THz communication systems requires the knowledge of the reflective properties of building materials. The reflectivity of smooth, optically thick materials can be modeled with Fresnel equations. In case of materials with a rough surface, diffuse scattering reduces the power reflected in the specular direction. Kirchhoff scattering theory...
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