This paper presents the results of an experimental investigation of the impedance of an axial dipole antenna located near a conducting cylinder of elliptical cross section. Measurements were carried out for various spacings of the antenna from the cylinder along the major and minor axes, and for four different values of cylinder ellipticity.For a cylinder having a maximum dimension of 0.76 wave length it is found that the impedance (resistive and reactive components) is an oscillating function of the antenna-to-cylinder spacing, having a period of approximately one-half wave length. For spacings greater than one wave length, the impedance is within 5% of the free-space dipole impedance.
INVERSE SCATTERING OF A CONDUCTING CYLINDER IN FREE SPACE BY MODIFIED FIREWORKS ALGORITHM
