ELECTRICALLY SMALL OCTAVE BANDWIDTH NON-DISPERSIVE UNI-DIRECTIONAL ANTENNA
First Claim
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1. An antenna, comprising:
- a driven element formed of a first conductive material; and
a ground plane formed of a second conductive material,wherein the active element is defined by;
a first arc extending in a first direction from a feed point to a first intermediate point,a second arc extending in a second direction from the feed point to a second intermediate point,a third segment extending from the first intermediate point to the top point,a fourth segment extending from the second intermediate point to a top point, andan antenna height between the feed point to the top point,wherein the antenna height is greater than both a first arc length of the first arc and a second arc length of the second arc,wherein a first distance between the feed point and the third segment is equal to the first arc length on at least one point along the third segment,wherein a second distance between the feed point and the fourth segment is equal to the second arc length on at least one point along the fourth segment,wherein a third distance between the top point and the third segment monotonically decreases for each point along the third segment,wherein a fourth distance between the top point and the fourth segment monotonically decreases for each point along the fourth segment,wherein a first gap between the driven element and the ground element increases monotonically between the feed point and the first intermediate point, andwherein a second gap between the driven element and the ground element increases monotonically between the feed point and the second intermediate point.
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Abstract
An electrically small antenna is disclosed that is directional, has over an octave bandwidth, is non-dispersive, is inexpensive to mass produce, and allows transmitter and receiver electronic components to be integrated into the antenna.
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Citations
20 Claims
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1. An antenna, comprising:
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a driven element formed of a first conductive material; and a ground plane formed of a second conductive material, wherein the active element is defined by; a first arc extending in a first direction from a feed point to a first intermediate point, a second arc extending in a second direction from the feed point to a second intermediate point, a third segment extending from the first intermediate point to the top point, a fourth segment extending from the second intermediate point to a top point, and an antenna height between the feed point to the top point, wherein the antenna height is greater than both a first arc length of the first arc and a second arc length of the second arc, wherein a first distance between the feed point and the third segment is equal to the first arc length on at least one point along the third segment, wherein a second distance between the feed point and the fourth segment is equal to the second arc length on at least one point along the fourth segment, wherein a third distance between the top point and the third segment monotonically decreases for each point along the third segment, wherein a fourth distance between the top point and the fourth segment monotonically decreases for each point along the fourth segment, wherein a first gap between the driven element and the ground element increases monotonically between the feed point and the first intermediate point, and wherein a second gap between the driven element and the ground element increases monotonically between the feed point and the second intermediate point. - View Dependent Claims (2, 3, 4, 5)
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6. An antenna, comprising:
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a driven element formed of a first conductive material; and a ground plane formed of a second conductive material, wherein the driven element is defined by; a first segment extending in a first direction from a feed point to a first intermediate point; a second segment extending in a second direction from the feed point to a second intermediate point; a third segment extending from the first intermediate point to a top point; and a fourth segment extending from the second intermediate point to the top point, wherein a lower width of the driven element between corresponding points on the first and second segments monotonically increases from the feed point to a line intersecting the first and second intermediate points, wherein an upper width of the driven element between corresponding points on the third and fourth segments monotonically decreases from the line intersecting the first and second intermediate points to the top point, wherein a first gap between the driven element and the ground element increases monotonically between the feed point and the first intermediate point, wherein a second gap between the driven element and the ground element increases monotonically between the feed point and the second intermediate point, - View Dependent Claims (7, 8, 9)
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10. An antenna, comprising:
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a driven element formed of a first conductive material; and a ground plane formed of a second conductive material, wherein the driven element is defined by; a first segment extending in a first direction from a feed point to a first intermediate point; a second segment extending in a second direction from the feed point to a second intermediate point; a third segment extending from the first intermediate point to first end point; a fourth segment extending from the second intermediate point to a second end point; and a top segment extending from the first end point to the second end point, wherein a lower width of the driven element between corresponding points on the first and second segments monotonically increases from the feed point to a line intersecting the first and second intermediate points, wherein an upper width of the driven element between corresponding points on the third and fourth segments monotonically decreases from the line intersecting the first and second intermediate points to the top segment, wherein a first gap between the driven element and the ground element increases monotonically between the feed point and the first intermediate point, and wherein a second gap between the driven element and the ground element increases monotonically between the feed point and the second intermediate point.
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11. An antenna, comprising:
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a driven element formed of a first conductive material; a ground plane formed of a second conductive material; and a U-shaped chassis formed of a third conductive material, the U-shaped chassis contacting the ground plane at an open end, and opposing the driven element, wherein the driven element is defined by; a first segment extending in a first direction from a feed point to a first intermediate point; a second segment extending in a second direction from the feed point to a second intermediate point; a third segment extending from the first intermediate point to a top point; and a fourth segment extending from the second intermediate point to the top point, wherein a lower width of the driven element between corresponding points on the first and second segments monotonically increases from the feed point to a line intersecting the first and second intermediate points, wherein an upper width of the driven element between corresponding points on the third and fourth segments monotonically decreases from the line intersecting the first and second intermediate points to the top point, wherein a first gap between the driven element and the ground element increases monotonically between the feed point and the first intermediate point, wherein a second gap between the driven element and the ground element increases monotonically between the feed point and the second intermediate point, - View Dependent Claims (12, 13, 14, 15, 16)
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17. An antenna, comprising:
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a driven element formed of a first conductive material; a ground plane formed of a second conductive material; and a box-shaped chassis formed of a third conductive material, the box-shaped chassis contacting the ground plane at an open end, and opposing the driven element, wherein the driven element is defined by; a first segment extending in a first direction from a feed point to a first intermediate point; a second segment extending in a second direction from the feed point to a second intermediate point; a third segment extending from the first intermediate point to a top point; and a fourth segment extending from the second intermediate point to the top point, wherein a lower width of the driven element between corresponding points on the first and second segments monotonically increases from the feed point to a line intersecting the first and second intermediate points, wherein an upper width of the driven element between corresponding points on the third and fourth segments monotonically decreases from the line intersecting the first and second intermediate points to the top point, wherein a first gap between the driven element and the ground element increases monotonically between the feed point and the first intermediate point, wherein a second gap between the driven element and the ground element increases monotonically between the feed point and the second intermediate point, - View Dependent Claims (18, 19, 20)
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Specification