Broadband antenna using a semicircular radiator
First Claim
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1. An antenna comprising:
- a first radiator formed by a substantially semicircular conductor disc, said disc including a substantially semicircular cutout concentrically therewith forming a semicircular arc;
a plane conductor ground plate disposed opposed to said semicircular arc of said first radiator at right angles thereto; and
a feeder connected to the vertex of the semicircular arc of said first radiator and said plane conductor ground plate, for feeding power across said first radiator and said ground plate.
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Abstract
In a broadband antenna using a semicircular conductor disc, a semicircular cutout is formed in the semicircular radiator concentrically therewith. Alternatively, a semicircular arcwise radiating conductor with a semicircular cutout defined concentrically therewith is bent into a cylindrical shape to form a radiator.
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Citations
13 Claims
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1. An antenna comprising:
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a first radiator formed by a substantially semicircular conductor disc, said disc including a substantially semicircular cutout concentrically therewith forming a semicircular arc; a plane conductor ground plate disposed opposed to said semicircular arc of said first radiator at right angles thereto; and a feeder connected to the vertex of the semicircular arc of said first radiator and said plane conductor ground plate, for feeding power across said first radiator and said ground plate. - View Dependent Claims (2, 6, 7)
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3. An antenna comprising:
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a first radiator formed by a substantially semicircular arcwise conductor having a semicircular cutout defined concentrically therewith to form a semicircular arc; a second radiator formed by a substantially semicircular conductor disc and disposed with a vertex of said semicircular conductor disc opposed to a vertex of said semicircular arc of said first radiator; and a feeder connected to said vertexes of said first and second radiators, for feeding power across said first and second radiators. - View Dependent Claims (4, 5)
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8. An antenna comprising:
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a radiator formed by a substantially semicircular conductor disc bent into a cylindrical shape; a plane conductor ground plate disposed opposite and apart from a vertex of a semicircular peripheral arc of said disc at substantially right angles to the generating line of said cylindrical shape; and a feeder connected to the vertex of said semicircular arc and to said plane conductor ground plate for feeding power across said radiator and said ground plate.
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9. An antenna comprising:
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a radiator formed by a first substantially semicircular conductor disc bent into a cylindrical shape; another radiator formed by a second semicircular conductor disc having a center line aligned with a center line of said first semicircular conductor disc, said second semicircular conductor disc having a vertex opposed to a vertex of a peripheral semicircular arc of said first conductor disc apart therefrom; and a feeder connected to the vertexes of the semicircular arcs of said first and second conductor discs, for feeding power across said radiator and said another radiator. - View Dependent Claims (10, 11, 12, 13)
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Specification