A Novel Method of Scanning and Tracking in Satellite Communication Systems

This paper theoretically analyzes the impact of the antenna sub-reflector focus excursion technique on the antenna pattern. First, we derive relevant formulas and analyze pattern variation based on the focus excursion. On this base, this paper then proposes a novel structure of antenna sub-surface focus excursion and investigates the concrete engineering realization. Experimental results based on the test-bed of the antenna show that the proposed focus excursion scanning technique improves the system performance and thus has a high-practical engineering value.