Rain attenuation calculation using dielectric mixture with deformed rain drops

Abstract

A modified approach in computing the effective permittivity of dielectric mixture, which takes into account the distributions in rain drop sizes, shapes and depolarization factors, has been used to obtain the rain-attenuation of both the horizontally and vertically polarized wave. The computed results agree well with those obtained from the more complicated Mie scattering theory. the differential attenuation of horizontally and vertically polarized wave is obtained using the proposed model and compared favorably with the Oguchi's result for the cases of rain droplets in the form of oblate spheroids and in a form described by Pruppacher and Pitter.