Title :
Bifocal reflector antenna design procedure for wide-angle multi-beam applications
Author :
Plastikov, Andrey N. ; Kogan, B.L.
Author_Institution :
Antennas & Radio Propagation Dept., Nat. Res. Univ. “Moscow Power Eng. Inst.”, Moscow, Russia
Abstract :
This paper presents an approach of design and optimization of the multi-beam bifocal reflector antennas (BFRAs) that are synthesized in accordance with the novel designing procedure. A geometrical optics approximation that takes into account the cross-polarization distortions is used to estimate the aperture efficiency. It is also proposed to use an additional criterion (surface area efficiency) for comparison of efficiencies of reflector antennas with big subreflectors. The design of multi-beam BFRA with a Gregorian-like configuration in the symmetry plane that have 38° field of view and high directivity up to 55 dB is presented as an example.
Keywords :
approximation theory; geometrical optics; optical distortion; polarisation; reflector antennas; BFRA; Gregorian-like configuration; bifocal reflector antenna design procedure; cross-polarization distortion; geometrical optics approximation; high directivity; subreflector; wide-angle multibeam application; Aperture antennas; Feeds; Reflector antennas; Vectors; Aperture efficiency; bifocal reflector antennas; multi-beam antennas; scanning antennas; surface area efficiency;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
