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3 Structural Character and Operational Principle
3.1 System Structural Character
The 12m limit-motion antenna system is composed of antenna feed subsystem and
structure subsystem. The antenna feed subsystem contains feed and main reflector and
subreflector curves. The structure subsystem contains main reflector and subreflector,
polarization rotation device, pedestal and antenna feeder. The composition principles of
antenna system are shown in Fig.3.1-1. The picture is shown in Fig.3.1-2.
Fig.3.1-1 Composition Principle Block Diagram of Antenna System
