Antenna array
First Claim
1. A dual polarized antenna, comprising:
- a first unitary member formed into both a first vertically oriented radiating element and a second vertically oriented radiating element being orthogonal to the first radiating element, wherein said first and second radiating elements both have planar surfaces and form a cross-shaped antenna, further comprising an insulating cap securing said first radiating element with respect to said second radiating element to maintain said orthogonal relationship therebetween.
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Accused Products
Abstract
An antenna (10) having a plurality of unitary dipole antennas (12) formed by folding a stamped piece of sheet metal. Each of the unitary dipole antennas (12) are fed by two stripline feed systems (20, 22). Each of these feed systems are separated above and extend over a groundplane (14) and are separated by an air dielectric to minimize intermodulation (IM). Phase shifters (40, 42, 44) in combination with a downtilt control lever (52) are slidably adjusted beneath the respective dividing portions of the stripline feed system to adjust signal phase and achieve a uniform beam tilt having uniform and balanced side lobes. These stripline feed systems can also be formed from stamped sheet metal and which have distal ends bent 90° upward to couple to the respective dipole antennas (12).
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Citations
21 Claims
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1. A dual polarized antenna, comprising:
a first unitary member formed into both a first vertically oriented radiating element and a second vertically oriented radiating element being orthogonal to the first radiating element, wherein said first and second radiating elements both have planar surfaces and form a cross-shaped antenna, further comprising an insulating cap securing said first radiating element with respect to said second radiating element to maintain said orthogonal relationship therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A dual polarized antenna, comprising:
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a first unitary member formed into both a first vertically oriented radiating element and a second vertically oriented radiating element being orthogonal to the first radiating element;
wherein said first unitary member comprises a stamped sheet of metal folded into said first and second radiating elements forming a cross-shaped antenna;
wherein said first radiating element is shaped to have a 90°
bend forming 2 perpendicular sections, and said second radiating element is shaped to have a 90°
bend forming 2 perpendicular sections; and
further comprising a first air dielectric stripline feed member coupled to said first and second radiating elements, and a second air dielectric feed member coupled to said first and second radiating elements. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A dual polarized antenna, comprising:
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a first unitary member formed into both a first vertically oriented radiating element and a second vertically oriented radiating element being orthogonal to the first radiating element, wherein said first unitary member comprises a stamped sheet of metal folded into said first and second radiating elements and includes a conductive base segment disposed between said first and second radiating elements; and
further comprising an electrically non-conductive base member coupled to said base segment, said base member contoured to reduce moisture between said first and second radiating elements.
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20. A dual polarized antenna, comprising:
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a first unitary member formed into both a first vertically oriented radiating element and a second vertically oriented radiating element being orthogonal to the first radiating element, a first air dielectric stripline feed member coupled to the first and second radiating elements, and a second air dielectric feed member coupled to the first and second radiating elements; and
at least one electrically non-conductive spacer member supporting the first air dielectric stripline feed member, the spacer member being contoured to prevent moisture from accumulating proximate the first air dielectric stripline. - View Dependent Claims (21)
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Specification