The Surface Current and Charge Density Induced on Finite Cylinder Mounted Near a Perfectly Conducting Ground Plane.

摘要

The object of this research is to analyze the surface current and charge density induced on a finite cylinder situated above perfectly conducting ground plane due to an incident plane wave. This geometry can be used to investigate the mechanisms involved in problems such as a plane wave incident upon a parked aircraft and other similar problems. The Geometrical Theory of Diffraction is the method used to analyze this problem. The GTD solution is first applied to a two dimensional waveguide aperture and compared with a modal type solution to indicate where the GTD ray picture is valid. The GTD solution is then applied to the finite cylinder over a ground plane problem with a procedure which partially corrects caustics which occur in the solution. Plots of current and charge densities for various geometries are presented. (Author)