Title :
Compact, cranked-dipole feed for efficient illumination of small F/D paraboloids
Author_Institution :
University of Manchester, Nuffield Radio Astronomy Laboratories, Macclesfield, UK
Abstract :
The azimuthal symmetry of the polar diagram of a simple dipole radiator above a ground plane may be improved by bending the ends of the dipole towards the ground plane. Combined with capacitative loading of the dipole and a modified balun, this produces a compact, efficient feed with improved selectivity.
Keywords :
antenna feeders; radiotelescopes; receiving antennas; reflector antennas; 151 MHz; azimuthal symmetry; capacitative loading; cranked-dipole feed; efficient illumination; focal length/diameter ratio; modified balun; polar diagram; radiotelescopes; small F/D paraboloids;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850541
