Title :
Tilting aplanat RF telescope
Author_Institution :
Naval Res. Lab., Washington, DC, USA
fDate :
12/1/1998 12:00:00 AM
Abstract :
Beam steering by tilting the secondary is common in two-mirror RF telescopes, but it is not generally recognized that the optical quality need not suffer as the beam is steered: a tilting aplanat can maintain diffraction-limited performance over fields of a few degrees
Keywords :
beam steering; radiotelescopes; beam steering; diffraction-limited performance; optical quality; tilting aplanat RF telescope; two-mirror RF telescopes; Assembly; Beam steering; Mirrors; Optical diffraction; Optical sensors; Radio astronomy; Radio frequency; Remote sensing; Shape; Telescopes;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
