Title :
Computation of attenuation, phase rotation, and cross-polarization of radio waves due to rainfall in tropical regions
Author :
Ajose, S.O. ; Sadiku, Matthew N O ; Goni, U.
Author_Institution :
Dept. of Electr. & Comput. Eng., Federal Univ. of Technol., Minna, Nigeria
fDate :
1/1/1995 12:00:00 AM
Abstract :
Computation of attenuation, phase rotation, and cross-polarization of radio waves due to rain in tropical regions using finite element method is the subject of this work. Computations are made of the forward-scattering amplitudes of oblate spheroidal raindrops at 20 and 30 GHz, assuming plane waves at normal incidence to the raindrop axis. The forward-scattering amplitudes are employed to obtain the required attenuation, phase rotation, and cross-polarization using the rainfall rate data for Nigeria, a tropical African country. The results obtained in this work compare with those existing in the open literature
Keywords :
UHF radio propagation; electromagnetic wave absorption; electromagnetic wave polarisation; electromagnetic wave scattering; microwave propagation; rain; tropospheric electromagnetic wave propagation; 20 GHz; 30 GHz; Nigeria; SHF; UHF; attenuation; cross-polarization; finite element method; forward-scattering amplitudes; normal incidence; oblate spheroidal raindrops; phase rotation; plane waves; radio waves; rainfall; tropical regions; Antennas and propagation; Attenuation; Distributed computing; Finite element methods; Frequency; Helium; Perturbation methods; Polarization; Rain; Scattering;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
