Design of wide-angle scanning parabolic torus reflector antenna realized by rotation of sub-reflector
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications（2013）
摘要
In order to meet wide angle scanning requirements of the satellite antenna, a side-fed parabolic torus reflector antenna is designed in this paper. The ellipsoid is adopted as sub-reflector with the purpose of reduction the mechanical equipments. The sub-reflector is rotated in azimuth to scan the antenna beam in the direction (±20°) for wide swath coverage. The calculated results guiding the antenna optimization are based on physical optics (PO) analysis and agree well with our design goals.
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关键词
antenna optimization,bireflection antenna,physical optics analysis,po analysis,w band,satellite antenna,antenna beam scan,wide swath coverage,parabolic torus reflector antenna,ellipsoid,wide-angle scanning,subreflector rotation,reflector antennas,physical optics,millimetre wave antennas,side-fed parabolic torus reflector antenna,wide angle scanning requirements,satellite antennas
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