Wide frequency band planar antenna
First Claim
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1. A planar antenna comprising:
- a first outer planar conductive element defining an inner hole, at least 75% of the boundary between the hole and the first outer planar conductive element being a continuous concave smooth curve; and
a second planar conductive element substantially coplanar with and surrounded by the first outer planar conductive element, the second planar conductive element being located in the hole, at least 75% of the outer boundary of the second planar conductive element being a continuously convex smooth curve, wherein a center of gravity of the hole of the first outer planar conductive element is offset from a center of gravity of the second planar conductive element to form a slot.
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Abstract
The present invention provides a planar antenna having a first, outer planar conductive element and a second planar conductive element located in a hole in the outer element. At least 75% of the boundary between the hole and the first outer planar conductive element is a continuous concave smooth curve. The second planar conductive element is substantially coplanar with and surrounded by the first outer planar conductive element. At least 75% of the outer boundary of the second planar conductive element is a continuously convex smooth curve.
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Citations
18 Claims
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1. A planar antenna comprising:
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a first outer planar conductive element defining an inner hole, at least 75% of the boundary between the hole and the first outer planar conductive element being a continuous concave smooth curve; and
a second planar conductive element substantially coplanar with and surrounded by the first outer planar conductive element, the second planar conductive element being located in the hole, at least 75% of the outer boundary of the second planar conductive element being a continuously convex smooth curve, wherein a center of gravity of the hole of the first outer planar conductive element is offset from a center of gravity of the second planar conductive element to form a slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A planar antenna comprising:
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a first outer planar conductive element defining an inner hole, at least 75% of the boundary between the hole and the first outer planar conductive element being a continuous concave smooth curve; and
a second planar conductive element substantially coplanar with and surrounded by the first outer planar conductive element, the second planar conductive element being located in the hole, at least 75% of the outer boundary of the second planar conductive element being a continuously convex smooth curve;
wherein the second conductive element is connected to a coplanar waveguide. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification