Title :
Analysis of directional characteristics of offset reflector antennas
Author :
Gorobets, N.N. ; Kijko, V.I. ; Gorobets, Ju.N. ; Movchan, O.S.
Author_Institution :
Karazin Kharkov Nat. Univ., Ukraine
Abstract :
Radiation characteristics (DC, aperture efficiency (AEF), SLL, width pattern) of the offset reflector antenna as a cutting from a paraboloid of rotation was investigated in dependence on cutting displacement from top of a paraboloid. Researches will be carried out on the basis of mathematical model of a parabolic mirror antenna with use of a method of physical optics and with taking account of a shadowing of a mirror with the block of an irradiator. It is shown, that at the fixed mirror aperture size for obtaining maximum DC and AEF the displacement of a mirror should be little less than in the case, when requirement of the complete unshadowing of a mirror with the irradiator is ensured.
Keywords :
antenna radiation patterns; directive antennas; offset reflector antennas; aperture efficiency; directional characteristics; offset reflector antennas; parabolic mirror antenna; physical optics; radiation characteristics; side lobe levels; Aperture antennas; Costs; Directive antennas; Gaussian processes; Manufacturing processes; Mathematical model; Mirrors; Physical optics; Reflector antennas; Shadow mapping;
Conference_Titel :
Antenna Theory and Techniques, 2005. 5th International Conference on
Print_ISBN :
0-7803-9261-2
DOI :
10.1109/ICATT.2005.1496917
