Bistatic scattering characteristics of dense randomly distributed cylinders

In recent years there has been an increasing amount of interest in bistatic scattering characteristics of various kinds of media with regards to volume and rough surface scattering. The scattering of spheres has been studied analytically, numerically, and experimentally by many scientists. The scattering of cylinders has also been studied. The focus of this paper is on the experimental studies of millimeter-wave scattering from dense concentrations of cylinders when the size parameter ka is on the order of 1. Solving for the case of a sparse distribution of scatterers, where the fractional volume S is less than 5 to 10%, can be done with radiative transfer. This is true because for small fractional volumes, each scatterer is independent and thus the total scattered field is simply the sum of the individual scattered fields due to each scatterer. When f>10%, hereafter referred to as the dense case, each scatterer is no longer independent and the suppositions of radiative transfer theory no longer apply