New method for measuring properties of nonhomogeneous materials by a two-polarization forward-scattering measurement

A novel method for measuring properties of grainy materials using a two-polarization scattering measurement combined with free-space phase measurement is introduced. The theoretical background of the measurement method is presented. Laboratory measurements of the depolarized scattering cross sections of white rice, green lentils, polystyrene beads, polyethylene beads, and their mixtures at 10 and 35 GHz using a vector network analyzer and two horn antennas are then presented. Results are compared with those based on the first-order multiple scattering theory. A low-cost set-up for industrial measurements is suggested.<
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