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Microwave attenuation and cross polarization in dust storms

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2 Author(s)
Ghobrial, S.I. ; Faculty of Eng. and Architecture, Univ. of Khartoum, Sudan ; Sharief, S.

Some of the electrical and mechanical properties of dust are discussed. An expression for optical visibility during storms is given in terms of the relative volume occupied by dust. Expressions for attenuation and phase shift constants for a medium with precipitating dust particles are derived in terms of visibility and wavelength for both vertical and horizontal polarizations. Expressions for the attenuation and cross polarization of circularly polarized waves are also derived. Computations show that linearly polarized waves suffer but little effect. Circularly polarized waves on the other hand are significantly cross polarized.

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Antennas and Propagation, IEEE Transactions on  (Volume:35 ,  Issue: 4 )