N. Chahat, J. Sauder, Marc S. Lane, E. Decrossas, Gaurangi Gupta, P. Focardi, N. Beidleman, G. Freebury, M. Thomson, S. Tanelli
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引用次数: 0
Abstract
A multi-beam Ka-band deployable mesh reflector designed for the NASA’s Earth Ventures Mission named INCUS (Investigation of Convective Updrafts) is presented. It is a 1.6m diameter mesh reflector offset-fed by an array of five small horns. The 4 off-nadir horns are arranged in two rows in order to achieve the desired cross-track overlap at the 3-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. The optimization of the antenna feed location to achieve the 3dB beamwidth overlap is described and the overall reflector antenna performance is presented.
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