Astigmatic Correction by a Deformable Subreflector

Details Astigmatic Correction by a Deformable Subreflector Astigmatic Correction by a Deformable Subreflector

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ieee.symp..706w&link_type=abstract

Antennas and Propagation Society International Symposium (IEEE AP-S),17,706-709

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Scientific paper

Most antennas have strong gravitational astigmatism and vary as a function of the antenna position. We suggested that this kind of surface error could be corrected away if a subreflector is mechanically deformed in a proper way [l]. Analyses by ray trace method showed that the shape of the maln reflector can be exactly corrected by a similarly shaped subreflector if rays do not cross each other [2].

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