Aerosol particles in the air can significantly influence the propagation of microwaves. The strong attenuation of microwaves by dust particles is well-known phenomenon that can be observed during dust-storms. The attenuation (in dB/km) depends on many parameters, like material of dust particles, their concentration, size distribution, humidity and eventually on the excess electric charge on the particle surface.
We developed specific software for:
Both programs are based on modified Mie theory of scattering (see our paper published in JQSRT and references therein).
Program "attenuation" searches by brute force method for the combinations of spherical particle parameters
(radius, dielectric properties, temperature, potential) that lead to maximum attenuation at given set of frequencies.
Download the windows executable incl. demo input files. More details are in the
description of the program.
Program "visibility" calculates the visibility and MW-attenuation at given set of frequencies.
Properties of the dust (concentration, size distribution, refractive index dependence, surface charge) act as input.
Download the windows executable incl. demo input files. More details are in the
description of the program.