Coupled sectorial loop antenna for ultra-wideband applications
First Claim
Patent Images
1. A sectorial loop antenna comprising:
- a ground plane;
a pie-slice shaped sector having a point positioned adjacent to the ground plane;
a first arch coupled to the ground plane and one side of the sector opposite to the point;
a second arch coupled to the ground plane and an opposite side of the sector opposite to the point; and
a feed electrically coupled to the point of the sector and electrically isolated from the ground plane.
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Abstract
A single-element antenna system that provides a wide bandwidth and consistent polarization over the frequency range to which the antenna is impedance matched. In one embodiment, the wideband antenna system includes two parallel coupled sectorial loop antennas (CSLA) that are coupled along an axis of symmetry. In another embodiment, half of the coupled sectorial loop antenna is electrically coupled to a ground plane, where the antenna includes one pie-slice shaped sector and two arches. In alternate embodiments, sections of the sector can be removed to reduce the weight of the antenna system.
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Citations
30 Claims
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1. A sectorial loop antenna comprising:
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a ground plane; a pie-slice shaped sector having a point positioned adjacent to the ground plane; a first arch coupled to the ground plane and one side of the sector opposite to the point; a second arch coupled to the ground plane and an opposite side of the sector opposite to the point; and a feed electrically coupled to the point of the sector and electrically isolated from the ground plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A coupled sectorial loop antenna comprising:
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a ground plane; a first pie-slice shaped sector and a second pie-slice shaped sector each having a point positioned adjacent to the ground plane and defining a pie-sliced shaped open portion therebetween; a first arch electrically coupled to the ground plane and an end of the first sector opposite to the point of the first sector; a second arch electrically coupled to the ground plane and an end of the second sector opposite to the point of the second sector; and a feed electrically coupled to both points of the first and second sectors and electrically isolated from the ground plane. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A sectorial loop antenna comprising:
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a ground plane; a pie-slice shaped sector having a point positioned adjacent to the ground plane, said pie-slice shaped sector including at least one pie-slice shaped portion being removed therefrom; a first arch coupled to the ground plane and one side of the sector opposite to the point; a second arch coupled to the ground plane and an opposite side of the sector opposite to the point; and a feed electrically coupled to the point of the sector and electrically isolated from the ground plane. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification