Phased array antenna formed as coupled dipole array segments
First Claim
1. A phased array antenna, comprising:
- a substrate that is segmented into a plurality of array tiles;
an array of dipole antenna elements formed on the substrate, each dipole antenna element positioned on a respective one of said array tiles, wherein each dipole antenna element comprises a medial feed portion and a pair of legs extending outwardly therefrom, adjacent legs of adjacent dipole antenna elements including respective spaced apart end portions forming a gap between the respective end portions and defined by separate tiles; and
a capacitor coupler positioned at each respective spaced apart end portion of adjacent legs and bridging a gap for capacitive coupling respective spaced apart end portions of respective adjacent dipole antenna elements together.
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Abstract
A phased array antenna includes a substrate that is segmented into a plurality of array tiles. An array of dipole antenna elements is formed on the substrate with each dipole antenna element positioned on a respective one of the array tiles. Each dipole antenna element includes a medial feed portion and a pair of legs extending outwardly therefrom. Adjacent legs of adjacent dipole antenna elements include respective spaced apart end portions forming a gap between the respective end portions and defined by separate tiles. A capacitor coupler is positioned at each respective spaced apart end portion of adjacent legs and bridging a gap for capacitive coupling respective spaced apart end portions of respective adjacent dipole antenna elements together.
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Citations
20 Claims
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1. A phased array antenna, comprising:
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a substrate that is segmented into a plurality of array tiles; an array of dipole antenna elements formed on the substrate, each dipole antenna element positioned on a respective one of said array tiles, wherein each dipole antenna element comprises a medial feed portion and a pair of legs extending outwardly therefrom, adjacent legs of adjacent dipole antenna elements including respective spaced apart end portions forming a gap between the respective end portions and defined by separate tiles; and a capacitor coupler positioned at each respective spaced apart end portion of adjacent legs and bridging a gap for capacitive coupling respective spaced apart end portions of respective adjacent dipole antenna elements together. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A phased array antenna, comprising:
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a ground plane; at least one dielectric layer applied adjacent the ground plane; a substrate and array of dipole antenna elements thereon, said dielectric layer positioned between the ground plane and substrate, wherein said substrate is segmented at each dipole antenna element to form a plurality of array tiles such that each dipole antenna element is positioned on a respective one of said array tiles, wherein each dipole antenna element comprises a medial feed portion and a pair of legs extending outwardly therefrom, adjacent legs of adjacent dipole antenna elements including respective spaced apart end portions forming a gap between the respective end portions and defined by separate tiles; and a capacitor coupler positioned at each respective spaced apart end portion of adjacent legs and bridging a gap for capacitive coupling respective spaced apart end portions of respective adjacent dipole antenna elements together. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of forming a phased array antenna comprising:
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segmenting a substrate into a plurality of array tiles; forming a dipole antenna element on each array tile, each dipole antenna element comprising a medial feed portion and a pair of legs extending outwardly therefrom, adjacent legs of adjacent dipole antenna elements including respective spaced apart end portions forming a gap between the respective end portions and defined by separate tiles; and capacitive coupling respective spaced apart end portions of respective adjacent dipole antenna elements together by positioning a capacitor coupler at respective spaced apart end portions of adjacent legs. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification