POLARIZATION CONVERTING DIELECTRIC PLATE
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Mar 17, 2014
filing date -
Mar 15, 2013
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Abstract
A dielectric plate for use with a source of electromagnetic radiation of a predetermined frequency propagating along a propagation path is provided. The dielectric plate may include alternating elongate parallel first and second dielectric elements and a frame supporting the first and second dielectric elements distributed in a first plane. The electromagnetic radiation may be predominantly linearly polarized parallel to the first plane. The first plane of the dielectric plate may transverse to the second plane and the propagation path may pass through the dielectric plate when the dielectric plate is supported in the propagation path of the electromagnetic radiation. The first and second dielectric elements may have different dielectric constants and respective thicknesses along the propagation path so that the electromagnetic radiation that passes through the first dielectric elements may be phase shifted by a predetermined amount from the electromagnetic radiation that passes through the second dielectric elements.
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