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Calculation of attenuation and phase shift in a rain medium using the dielectric mixture model with deformed raindrops
Author(s) -
Yeo T. S.,
Gao M. Z.,
Kooi P. S.,
Leong M. S.
Publication year - 1995
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650080311
Subject(s) - attenuation , oblate spheroid , differential phase , dielectric , scattering , phase (matter) , mie scattering , computational physics , optics , permittivity , electromagnetic radiation , physics , prolate spheroid , blueshift , materials science , light scattering , atomic physics , classical mechanics , optoelectronics , quantum mechanics , photoluminescence
A modified approach for computing the effective permittivity of a dielectric mixture has been applied to obtain the attenuation and phase shift of both horizontally and vertically polarized electromagnetic waves in the rain medium. This approach takes into consideration the distributions in raindrop sizes, shapes, and depolarization factors. The computed results agree well with those obtained from the more complicated Mie scattering theory. The differential attenuation and phase shift between horizontally and vertically polarized waves are also obtained using the proposed model and their calculated values compare favorably with available published results by Oguchi (oblate spheroid rain droplets) and Pruppacher and Pitter (deformed rain droplets).