Scattering by single ice needles and plates at 30 GHz

Abstract

Because of the small loss tangent of ice at 30–50 GHz, significant depolarization of satellite‐to‐ground communication signals could occur due to the presence of cirrus clouds in their paths. It is known that cirrus clouds basically consist of ice needles and plates. Extensive calculations have been performed for the problem of scattering by a family of ice needles and plates for various length‐to‐width ratios ranging from 1 to 10. Scattering results with special attention to induced cross‐polarized fields will be presented.

Em Scattering From a Long Dielectric Circular Cylinder

“…Determining the electromagnetic properties of those key constituents such as branches and trunks requires knowledge of the scattering properties of dielectric cylinders [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In addition, in studying scattering and absorption of electromagnetic waves from ice needles in clouds, the dielectric cylinder are also used to model those needles [20]. Thus, finding an effective method to calculate the electromagnetic scattering by dielectric finite cylinders motivated many authors.…”

Calculation of ice depolarization on satellite radio paths

“…Several methods are available for calculating the scattering from individual ice particles [Mon, 1982;Yeh et al, 1982]. The flexibility introduced by using sophisticated computational methods is not required in most situations because of the lack of information on ice particle sizes and shapes.…”