Design and shaping of offset dual-reflector antennas from far-field and near-field measurements of the feed horns
2012
This work discusses an iterative procedure of shaping offset dual-reflector antennas based on geometrical optics considering both far-field and near-field measurements of amplitude and phase from the feed horn. The surfaces synthesized will transform a known radiation field of a feed to a desired aperture distribution. This technique is applied for both circular and elliptic apertures and has a main advantage which is to simplify the problem compared with other existing techniques based on solving nonlinear differential equations.
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