Broad band patch antenna
First Claim
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1. A broad band patch antenna array comprising:
- a plurality of generally rectangular patch antennas, each of the patch antennas having a first side and a second side longer than the first side;
the patch antennas being arranged in a first column wherein the first sides of the patch antennas are in generally co-planar relation to one another, and a second column wherein the second sides of the patch antennas are aligned in generally opposed, parallel relation to the first sides of the patch antennas of the first column such that the patch antennas of the second column are orthogonal to the patch antennas of the first column; and
a plurality of antenna feed conductors each having an equal length, each of the antenna feed conductors being electrically connected to a respective one of the patch antennas within a given column at a corresponding location;
wherein the equal length of the antenna feed conductors and the orthogonal orientation of the patch antennas of the second column to the patch antennas of the first column facilitate the reception and transmission of electromagnetic radiation in two planes.
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Abstract
A patch antenna having enhanced frequency response has a generally planar element formed of a substantially conductive material, and antenna feed conductor electrically connected to the antenna element, and a generally planar parasitic element formed of a substantially conductive material positioned substantially coaxially with respect to the antenna element and spaced apart therefrom. The distance by which the parasitic element is spaced apart from the antenna element in order to provide such enhanced frequency response of the patch antenna is determined empirically. An optimally configured array of such patch antennas is also disclosed.
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Citations
18 Claims
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1. A broad band patch antenna array comprising:
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a plurality of generally rectangular patch antennas, each of the patch antennas having a first side and a second side longer than the first side; the patch antennas being arranged in a first column wherein the first sides of the patch antennas are in generally co-planar relation to one another, and a second column wherein the second sides of the patch antennas are aligned in generally opposed, parallel relation to the first sides of the patch antennas of the first column such that the patch antennas of the second column are orthogonal to the patch antennas of the first column; and a plurality of antenna feed conductors each having an equal length, each of the antenna feed conductors being electrically connected to a respective one of the patch antennas within a given column at a corresponding location; wherein the equal length of the antenna feed conductors and the orthogonal orientation of the patch antennas of the second column to the patch antennas of the first column facilitate the reception and transmission of electromagnetic radiation in two planes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of forming a patch antenna array having enhanced frequency response with a plurality of generally rectangular patch antennas each having a first side and a second side longer than the first side, the method comprising the steps of:
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a) aligning the patch antennas into a first column wherein the first sides of the patch antennas are in generally co-planar relation to one another; b) attaching a respective antenna feed conductor to a corresponding location of a respective patch antenna in the first column, each of the antenna feed conductors having an equal length; c) aligning the patch antennas into a second column wherein the second sides of the patch antennas are aligned in generally opposed, parallel relation to the first sides of the patch antennas of the first column such that the patch antennas of the second column are orthogonal to the patch antennas of the first column; and d) attaching a respective antenna feed conductor to a corresponding location of a respective patch antenna in the second column, each of the antenna feed conductors having an equal length. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification