Attenuation and phase rotation of radio waves due to rain: Calculations at 19.3 and 34.8 GHz
Article first published online: 7 DEC 2012
Copyright 1973 by the American Geophysical Union.
Volume 8, Issue 1, pages 31–38, January 1973
How to Cite
1973), Attenuation and phase rotation of radio waves due to rain: Calculations at 19.3 and 34.8 GHz, Radio Sci., 8(1), 31–38, doi:10.1029/RS008i001p00031.(
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Received: 20 APR 1972
Computations are made of the forward- and back-scattering intensities of oblate spheroidal raindrops at 19.3 and 34.8 GHz, assuming plane waves at normal incidence to the drop axis. Two kinds of polarization are considered in the incident field: one is parallel to drop axis; the other is perpendicular. Numerical values of these basic scattering intensities are listed in tables. Forward-scattering intensities are then used for determining the effective propagation constants of rain-filled space. From these propagation constants, attenuations and phase rotations for parallel and perpendicular polarizations are computed for several rain rates. One significant conclusion is that the difference between phase rotations in the two polarizations at 19.3 GHz becomes very large as the rain rate increases, whereas that at 34.8 GHz is bounded in a very small range throughout all possible rain rates.