Polarization properties of edge loaded high gain reflector antennas, volume 1
Abstract
A general theory of reflector antennas loaded by surface impedances is presented. The theory was checked experimentally on surface loaded square plate scatterers and then applied to computation of the radiation diagram of parabolic and hyperbolic dishes. Although computer programs and computed diagrams refer to the case of focal illumination, the theory is able to handle the case of offset illumination. Spatial variation of primary illumination was taken into account using either the slope diffraction coefficient or a convolutional approach. The relationship between the two computational techniques is outlined. Discussions on a generalization of the PauliClemmow steepest descent method, diffraction coefficient for the case of oblique incidence, asymptotic evaluation of the diffraction integral for the case of nonuniform illumination, and scattering measurements on loaded metal planes are annexed.
 Publication:

Final Report Naples Univ. (Italy). Lab. di Onde Elettromagnetiche
 Pub Date:
 1978
 Bibcode:
 1978napu.rept.....B
 Keywords:

 Cross Polarization;
 Edge Loading;
 High Gain;
 Parabolic Antennas;
 Reflector Antennas;
 Reflectors;
 Antenna Radiation Patterns;
 Computer Programming;
 Convolution Integrals;
 Hyperbolas;
 Rims;
 Slopes;
 Wave Diffraction;
 Communications and Radar