Scattering and Pattern Perturbation by a Conducting Tubular Cylinder of Finite Length

This paper uses the plane-wave-spectrum (PWS) scattering technique to determine the scattering and pattern-perturbation effects of a conducting tubular cylinder of a finite length situated in the neighborhood of a 2 x 4 dipole array. Both the axial and the circumferential current distributions induced on the cylinder due to a unit-magnitude incident plane wave have been calculated. Typical patterns for the scattered field and the perturbed radiation field are presented for various cylinder locations.