Title :
Broadening of primary feed patterns by small E-plane slots
Author_Institution :
Communications Research Centre, Ottawa, Canada
Abstract :
It is shown that the radiation patterns of a circular waveguide with a corrugated flange can be broadened by using small E-plane slots. These slots tend to improve the amplitude patterns of the feed, but introduce some phase variations in the axial radiation.
Keywords :
antenna feeders; antenna radiation patterns; circular waveguides; reflector antennas; amplitude patterns; axial radiation; circular waveguide; corrugated flange; paraboloidal reflectors; primary feed patterns; radiation patterns; small E-plane slots;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770071
