ANALYSIS AND MINIMIZATION OF ABERRATION IN WIDE-ANGLE PLANAR MIRROR SYSTEMS

 

V. A. Kaloshin , E. V. Frolova

Kotel’nikov Institute of Radio Engineering and Electronics of RAS

 

The paper is received on January 10, 2014

Abstract. The results of the study of aberrations in planar mirror systems are presented. Based on tracing method and imposed mean square aberration ( MSA ) a method for analyzing and minimizing asymmetrical aberrations in the focusing region oblique rays is proposed. Asymptotic relations that characterize the region of parameters with minimal aberrations have been obtained. The comparison of the  aberrations in different multibeam planar mirror systems: Cassegrain systems, Schwarzschild system and single-dish system with a parabolic mirror was done using MSA. The efficiency dependence of a single-dish system and Schwarzschild system on angle of view was calculated using physical optics method.

Keywords: planar mirror systems, multi-beam antennas, Cassegrain system, Schwarzschild system, aberrations.