Printed circuit antenna array using corner reflector
First Claim
1. An antenna array comprising:
- a corner reflector having first and second continuous reflective surfaces which intersect to form a corner;
a dielectric substrate positioned between said corner and an opposite end of said first continuous reflective surface, said dielectric substrate defining at least one surface opposed to said second continuous reflective surface;
a plurality of dipole elements arranged upon said at least one surface of said dielectric substrate; and
means for coupling, at least partially disposed upon said one surface of said dielectric substrate, said plurality of dipole elements to an antenna feed line.
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Accused Products
Abstract
A corner reflector antenna array capable of being driven by a coaxial feed line is disclosed herein. The antenna array comprises a substantially right-angle corner reflector having first and second reflecting surfaces. A dielectric substrate is positioned adjacent the first reflective surface, and defines first and second opposing substrate surfaces. In the preferred implementation the dielectric substrate is oriented substantially parallel to, but spaced from, the second reflective surface. The antenna array further includes a plurality of dipole elements, each of the dipole elements including a first half dipole disposed on the first substrate surface and a second half dipole disposed on the second substrate surface. A twin line interconnection network, disposed on both the first and second substrate surfaces, carries signal energy to and from the plurality of dipole elements. The segments of the interconnection network immediately proximate the dipole elements are preferably oriented normal to the radiation emitted thereby, and are thereby prevented from interfering with the antenna radiation pattern. A printed circuit balun is used to connect the center and outer conductors of a coaxial feed line to the segments of the interconnection network disposed on the first and second substrate surfaces, respectively.
44 Citations
23 Claims
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1. An antenna array comprising:
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a corner reflector having first and second continuous reflective surfaces which intersect to form a corner; a dielectric substrate positioned between said corner and an opposite end of said first continuous reflective surface, said dielectric substrate defining at least one surface opposed to said second continuous reflective surface; a plurality of dipole elements arranged upon said at least one surface of said dielectric substrate; and means for coupling, at least partially disposed upon said one surface of said dielectric substrate, said plurality of dipole elements to an antenna feed line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An antenna array disposed to be driven by a coaxial feed line, said antenna array comprising:
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a substantially right-angle corner reflector having a first continuous reflective surface and a second continuous reflective surface which intersect to form a corner; a dielectric substrate positioned between said corner and an opposite end of said first continuous reflective surface, said dielectric substrate defining first and second opposing substrate surfaces oriented parallel to said second continuous reflective surface; a plurality of dipole elements, each of said dipole elements including a first half dipole printed on said first substrate surface and a second half dipole printed on said second substrate surface; and means for coupling said plurality of dipole elements to said coaxial feed line. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. An antenna array comprising:
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a corner reflector having first and second reflective surfaces, said first and second reflective surfaces being arranged in accordance with a desired elevational beamwidth of said antenna array; a dielectric substrate defining a lateral end in contact with said first reflective surface, said dielectric substrate disposed upon said first reflective surface defining at least one surface transverse to said lateral end and opposed to second reflective surface; a plurality of dipole elements arranged upon said at least one surface of said dielectric substrate; and means for coupling said plurality of dipole elements to an antenna feed line. - View Dependent Claims (21, 22, 23)
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Specification