Title :
A corrugated soft sector horn with different beam properties in the two principal planes
Author :
Salomonsson, J. ; Hirokawa, J. ; Kildal, P.-S.
Author_Institution :
Dept. of Microwave Technol., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
Rectangular horn antennas have the advantage of making it possible to have different beamwidths in the two principal planes of radiation. This makes them attractive as feeds for elliptical reflectors. In some cases there might even be a need for feed patterns, with different frequency dependencies in the two principal planes. The purpose of the paper is to demonstrate that it is possible to design a corrugated rectangular sector horn in such a way. In addition, the throat of the horn is provided with a novel multilayer lens, which ensures excitation of the desired lowest-order mode in the flared section of the horn.
Keywords :
antenna accessories; antenna radiation patterns; horn antennas; reflector antenna feeds; 9.5 to 14 GHz; beam properties; corrugated soft sector horn; elliptical reflectors; excitation; feeds; flared section; frequency dependencies; lowest-order mode; multilayer lens; radiation; rectangular horn antennas; throat; Apertures; Diffraction; Feeds; Frequency; Geometrical optics; Horn antennas; Optical propagation; Polarization; Radio astronomy; Size control;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1995. AP-S. Digest
Conference_Location :
Newport Beach, CA, USA
Print_ISBN :
0-7803-2719-5
DOI :
10.1109/APS.1995.530077
