Method and apparatus for frequency selective beam forming
AssigneeTantivy Communications, Inc.
InventorsBing Chiang, Kenneth M. Gainey, James A. Proctor JR.
Life of this patent
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Abstract
A directive antenna having plural antenna elements is arranged in a parasitic antenna array. Frequency selective components are connected to a first subset of the antenna elements. Weighting structures are connected to a second subset of the antenna elements. The first and second subsets of antenna elements may be connected by a space-fed power distribution system to produce independently steerable beams having spectrally separated signals.
Claims52
A directive antenna, comprising:
- plural antenna elements arranged in an antenna array;
- frequency selective components coupled to a first subset of the antenna elements;
- and
- weighting structures coupled to a second subset of the antenna elements, the first and second subsets of antenna elements coupled by a space-fed power distribution system to produce independently steerable beams having spectrally separated signals.
A method for directing an antenna beam, comprising:
- providing plural antenna elements arranged in an antenna array;
- selectively coupling signals at a first subset of the antenna elements;
- and
- weighting the signals at a second subset of the antenna elements, the first and second subsets of antenna elements coupled by a space fed power distribution system to produce independently steerable beams having spectrally separated signals.
A directive antenna, comprising:
- plural antenna elements arranged in an antenna array;
- means for selectively coupling signals at a first subset of the antenna elements;
- and
- means for weighting the signals at a second subset of the antenna elements, the first and second subsets of the antenna elements coupled by a space fed power distribution system to produce independently steerable beams having spectrally separated signals.
A directive antenna, comprising:
- plural antenna elements arranged in an antenna array;
- frequency selective components each coupled to a respective antenna element;
- and
- at least two weighting structures coupled to each of the frequency selective components to produce independently steerable beams having spectrally separated signals.
A method for producing independently steerable beams, comprising:
- weighting a first signal at a first frequency by or to be transmitted by plural elements arranged in an antenna array having frequency selective components each coupled to a respective antenna element to produce a first steerable beam;
- and
- weighting a second signal spectrally separated from the first signal to produce a second and independently steerable beam received by or to be transmitted by the same antenna array.
An apparatus for beam forming, comprising:
- means for phase shifting a first signal at a first frequency received by or to be transmitted by plural antenna elements arranged in an antenna array, having frequency selective components each coupled to a respective antenna element, to produce a first steerable beam;
- and
- means for phase shifting a second signal spectrally separated from the first signal to produce a second and independently steerable beam received by or to be received by the same antenna array.
Dependencies are inferred from the claim text.