Dust Particle’s Permittivity in Microwave Signal Propagation
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Date
2020
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Abstract
Microwave propagation in dust storms has become
an active research field. Dust particles’ permittivity property is
an important component with its applications in microwave
signal propagation. Permittivity values, determined using
different techniques and methods, usually serve as input
variables to computation of electromagnetic scattering. They are
also used to determine propagation impairments such as
microwave attenuation, phase rotation, cross polarization,
antenna’s accretion and beam shift effects thereby making
accurate knowledge of dust permittivity in the microwave
frequency range very important. This paper has investigated and
presented a review of some related works on the permittivity of
dust particles. The current state of knowledge of dust particles
permittivity is presented by examining the variety of techniques
and methods, their strengths and limitations. The permittivity
properties of dust samples are a function of frequency, moisture
content and chemical composition. Identical chemical
composition of dust sample gives identical permittivity, while
different chemical compositions give a different permittivity
property. Furthermore, gaps in knowledge that need to be
covered are identified and the projected path and outlook of dust
particle’s permittivity property is also presented.