Optimizing Beam Congruence of a Solid Cassegrain Reflector and an Offset-Fed Deployable Mesh Reflector
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http://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.CIPDIR
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资源简介：
Two multi-beam Ku-band reflector antennas are designed for a NASA’s Earth Science mission concept. This satellite could carry two antennas: a center-fed Cassegrain fixed reflector and an offset-fed deployable mesh reflector. Each support 7 near-nadir beams at Ku-band with matched patterns between the two antennas. The feeds are arranged to achieve a desired cross-track overlap at the 1.5 dB point of the antenna pattern. This solution takes advantage of the platform motion to achieve the desired scan pattern with a simple switched-horn solution. This paper describes the design approach of the two antenas to achieve identical beam pointing and beamwidth despite using different optical prescription.
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Root
创建时间：
2024-03-03
