Complementary dual antenna system
First Claim
Patent Images
1. A complementary dual antenna system including:
- a first antenna element having a first frequency selective surface, said first frequency selective surface having a grid pattern of resonator elements, said resonator elements being tuned such that each of said resonator elements resonate at a first frequency; and
a second antenna element having a second frequency selective surface, said second frequency selective surface formed of a plurality of resonant openings, said plurality of resonant openings being tuned such that each of said plurality of resonant openings resonate at a second frequency;
wherein said plurality of resonant openings are tuned such that the second frequency selective surface is transparent to the first frequency.
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Abstract
The present invention provides a dual antenna system where a first antenna element has a metallic surface with openings that are resonant at frequencies other than the operating frequency of a second antenna element. The openings are sized such that the metallic components are relatively transparent at and near resonant frequencies of those openings. According to the present invention, the resonant frequencies of the openings may be the transmitting or receiving frequencies of the second antenna element, or of nearby antennas.
18 Citations
5 Claims
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1. A complementary dual antenna system including:
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a first antenna element having a first frequency selective surface, said first frequency selective surface having a grid pattern of resonator elements, said resonator elements being tuned such that each of said resonator elements resonate at a first frequency; and
a second antenna element having a second frequency selective surface, said second frequency selective surface formed of a plurality of resonant openings, said plurality of resonant openings being tuned such that each of said plurality of resonant openings resonate at a second frequency;
wherein said plurality of resonant openings are tuned such that the second frequency selective surface is transparent to the first frequency. - View Dependent Claims (2, 3, 4)
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5. A complementary dual antenna system including:
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a first antenna element having a first frequency selective surface, said first frequency selective surface being reflective at a first frequency and being transparent to a second frequency, said first frequency selective surface having a grid pattern of resonant elements; and
a second antenna element having a second frequency selective surface, said second frequency selective surface being reflective at said second frequency and being transparent to the first frequency, and said selective frequency selective formed of a plurality of resonant openings, said plurality of resonant openings being complementary to said plurality resonant elements of the first antenna element.
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Specification