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    facet.materialart.
    Unknown
    In:  Other Sources
    Publication Date: 2019-07-13
    Description: This paper describes a primarily experimental study of the effect of placing dielectric obstacles having various geometries directly upon the aperture of circular and rectangular waveguide antennas. It is found that plexiglas spheres, and in some cases plexiglas cubes, one to four wavelengths in dimension, produce directive patterns with low sidelobes. The measured gain in some cases is 6 dB greater than the gain of an optimum horn having an equal aperture size.
    Keywords: COMMUNICATIONS
    Type: Annual International Conference on Communications; Jun 19, 1972 - Jun 21, 1972; Philadelphia, PA
    Format: text
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