This paper considers the requirements and methodology for optimum reflector shaping in land based radar antennas for vessel traffic systems and similar applications. Vessel traffic systems (VTS) are normally used in ports, rivers and certain coastal situations to provide information on ship movements. Early VTS systems (circa 1960) used reflector antennas, with designs based on then available theoretical approaches. These typcially used azimuth plane curvature with elevation shaping via a line feed. This gives only limited control of the radiation pattern and integration of poalrisation diverse feeds is difficult and costly. Modern reflector technology has only recently been applied to these applications, with the advent of new manufacturing techniques yielding highly cost effective structures with single point feeds. This paper illustrates the benefits of using modern synthesis and analysis techniques with the effect of major improvements in the overall antenna, and hence system, performance.
Reflector shaping for VTS radar antennas
Reflektorformgebung für VTS (Vessel traffic system) - Radarantennen
1992
7 Seiten, 3 Bilder, 4 Tabellen
Conference paper
English
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