Title :
Offset spherical dual-reflector antenna
Author :
Brown, R.C. ; Clarricoats, P.J.B. ; Ramanujam, Parthasarathy
Author_Institution :
Queen Mary College, Department of Electrical & Electronic Engineering, London, UK
Abstract :
The dual offset spherical reflector antenna offers the advantage of a circularly symmetric main reflector together with a subreflector possessing an axis of symmetry. These features could lead to significant cost reductions in manufacture compared to existing offset designs. Initial results of a parametric study, using physical optics, show that 64% efficiency is possible with a peak crosspolar level below ¿35 dB, together with very low sidelobes.
Keywords :
reflector antennas; circularly symmetric main reflector; dual offset spherical reflector antenna; parametric study; peak crosspolar level; physical optics; subreflector; very low sidelobes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830623
