Physics – Optics
Scientific paper
Apr 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jopta...6..372s&link_type=abstract
Journal of Optics A: Pure and Applied Optics, Volume 6, Issue 4, pp. 372-378 (2004).
Physics
Optics
Scientific paper
We report a preliminary experimental study on a transmitting synthesized antenna constituted by a two-lens array. We realized experimentally the shifting of the entire far field diffraction pattern over more than 100 µrad. This corresponds to a change of the global transmitting direction, by acting simultaneously on the transmitting direction of the elementary fields (tilt) and the phase difference between the elementary fields (piston). The light flux transmitted from the source is forwarded to the elementary lenses of the antenna using optical fibres. We obtain experimentally an error signal permitting servo-control of the piston of the antenna around a given functioning point.
Delage Laurent
Reynaud François
Sagne J.
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