Directed dipole antenna
First Claim
Patent Images
1. An antenna, comprising:
- at least one slant 45 dipole radiating element adapted to generate a beam; and
at least one director disposed proximate the at least one dipole radiating element adapted to improve a Sector Power Ratio (SPR) of the beam while maintaining an equivalent 3 dB beamwidth.
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Accused Products
Abstract
A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
61 Citations
50 Claims
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1. An antenna, comprising:
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at least one slant 45 dipole radiating element adapted to generate a beam; and
at least one director disposed proximate the at least one dipole radiating element adapted to improve a Sector Power Ratio (SPR) of the beam while maintaining an equivalent 3 dB beamwidth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An antenna, comprising:
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a plurality of tilted groundplanes configured in a “
fallen-domino”
arrangement; and
a plurality of dipole radiating elements disposed above the groundplanes and configured such that the dipole radiating elements define a boresight downtilt. - View Dependent Claims (21, 22, 23, 24)
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- 25. An antenna comprising a radiating element disposed over a tray having a backside and having at least one groundplane disposed above the tray, the tray having a side wall spaced from the groundplanes and defining a gap therebetween.
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30. A dual-band antenna, comprising:
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a first slant 45 dipole radiating element adapted to generate a first beam at a first frequency;
a first director disposed proximate the first radiating element adapted to improve a Sector Power Ratio of the beam while maintaining an equivalent 3 dB beamwidth; and
a second radiating element disposed proximate the first radiating element and adapted to generate a second beam at a second frequency. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An antenna, comprising:
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a slant 45 dipole radiating element adapted to generate a beam; and
director means for directing the beam. - View Dependent Claims (46, 47, 48, 49, 50)
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Specification