Corner reflector antennas with arbitrary dipole orientation and apex angle

This paper is concerned with the determination of corner reflector characteristics for reflectors of arbitrary apex angle excited by any infinitesimal dipole source which is tangent to a circular cylinder having the reflector axis as its axis. Use is made of the dyadic Green's functions for the perfectly conducting wedge recently given by Tai, and the results are obtained as infinite series of Bessel functions. The quantities of interest are the relative phase and magnitude of vertical and horizontal components of electric field, the directive gain of the antenna, and the radiation resistance of the dipole source. These have been computed for a continuous range of apex angles from
30\deg
to
180\deg
for dipole-to-axis spacings up to about a wavelength. The results of this general analysis are useful not only for the determination of reflector characteristics for apex angles not subject to image analysis, but also for the obtaining of certain limiting forms for small apex angles which are not readily apparent from the image analyses.