A multipath model for atmospheric scintillations at microwaves and millimeter waves

Details A multipath model for atmospheric scintillations at microwaves and millimeter waves A multipath model for atmospheric scintillations at microwaves and millimeter waves

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ijimw..11..519v&link_type=abstract

International Journal of Infrared and Millimeter Waves (ISSN 0195-9271), vol. 11, April 1990, p. 519-532.

Physics

1

Atmospheric Turbulence, Microwave Transmission, Millimeter Waves, Satellite Antennas, Satellite Communication, Scintillation, Antenna Design, Dielectrics, Fresnel Region, Transfer Functions

Scientific paper

The paper describes a deterministic model for the effects of atmospheric turbulences on satellite-earth links from 1 to 100 GHz. Turbulent cells are considered as dielectric volumes crossing the Fresnel's zones of the link. The transmission coefficients are calculated for point receivers as well as for actual aperture antennas. The model yields a transfer function submitted to the influence of the equivalent dielectric constant, the thickness, size, and geometry of the cells, the size of the antenna, and the operating frequency. The resulting group delay is also evaluated, as well as the impulse and step-responses.

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