Research and minimization of aberrations in Shwarzschild symmetric two-mirror systems
V.
A. Kaloshin,
E. V. Frolova
Kotel’nikov
Institute of Radio-engineering and Electronics of RAS
The paper is
received on March
12, 2015
Abstract. Results of research of
aberrations in Sñhwarzschild symmetric
two-mirror systems with use of ray tracing technique are presented. The
algorithm of analysis and minimization of aberrations of inclined meridional
and sagittal rays in the focus area with considering highest orders aberrations
is proposed. The dependences of scattering spot radius on parameters of mirror
system to determine parameters with providing the maximum angles of view are
received. The examples of mirror system optimization and scanning characteristics
calculated using method of physical optics are given. The results of
optimization obtained with use of physical optics and ray tracing technique are
compared.
Key
words: symmetric two-mirror
systems, multibeam antennas, Sñhwarzschild
aplanatic system, minimization of aberrations.