COAX COUPLED SLOT ANTENNA
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United States of America Patent
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Issued Date -
May 1, 2014
app pub date -
Nov 1, 2012
filing date -
Nov 1, 2012
priority date (Note) -
Abandoned
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Abstract
A device comprising an elongated structural member, said member including a dielectric material such as air or other suitable dielectric disposed inside the member and having a microstrip disposed axially in the dielectric material. The member may have a series of slots positioned at a predetermined distance with each slot having a portion transverse to the disposition of the microstrip, and a portion parallel to the disposition of the microstrip. In operation RF power from the microstrip radiates through the slots according to a desired radiation pattern. Some embodiments may have arrays of patch antennas positioned to radiate in a direction to complement the radiation pattern of the slots. The slots may be formed asymmetrical or symmetrical to achieve a desired radiation pattern. Some embodiments provide for omni-directional radiation in horizontal polarization. When patches arrays are added the structure may provide dual (vertical and horizontal) polarization.
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