Multiple scattering by two conducting circular cylinders

Multiple scattering by two conducting circular cylinders is studied by applying three different methods: the method of Zitron and Karp (ZK), the method of Karp and Russek, and an iterative method which gives the exact solution. It is found from the numerical results for the total scattering cross section that the ZK method gives very precise results even for rather large
ka
and small
kd
, where
a
and
d
are the radius of the cylinder and the separation between the cylinders, respectively.