SYSTEM AND METHOD FOR FRIEND IDENTIFICATION
First Claim
1. An identification system, comprising:
- a first array of antennas that comprises a plurality of antennas, wherein main antenna lobes of different antennas of the first array partially overlap to define a first array lobe;
wherein a beamwidth of the first array lobe is smaller than a beamwidth of each main antenna lobe of the different antennas of the first array;
a transmission circuit arranged to provide to the first array of antennas a radio frequency (RF) interrogation signal;
a reception circuit arranged to receive an RF response signal from an entity to be classified as a friend and to provide an electrical representation of the RF response signal; and
a processor, arranged to process the response signal and to determine, based on the electrical representation of the RF response signal, whether the entity is a friend.
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Abstract
A friend identification that may include: a first array of antennas, wherein main antenna lobes of different antennas of the first array partially overlap to define a first array lobe; wherein a beamwidth of the first array lobe is smaller than a beamwidth of each main antenna lobe of the different antennas of the first array; a transmission circuit arranged to provide to the first array of antennas a radio frequency (RF) interrogation signal; a reception circuit arranged to receive an RF response signal from an entity to be classified as a friend and to provide an electrical representation of the RF response signal; and a processor, arranged to process the electrical representation of the response signal and to determine, based on the electrical representation of the RF response signal, whether the entity is a friend.
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Citations
21 Claims
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1. An identification system, comprising:
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a first array of antennas that comprises a plurality of antennas, wherein main antenna lobes of different antennas of the first array partially overlap to define a first array lobe;
wherein a beamwidth of the first array lobe is smaller than a beamwidth of each main antenna lobe of the different antennas of the first array;a transmission circuit arranged to provide to the first array of antennas a radio frequency (RF) interrogation signal; a reception circuit arranged to receive an RF response signal from an entity to be classified as a friend and to provide an electrical representation of the RF response signal; and a processor, arranged to process the response signal and to determine, based on the electrical representation of the RF response signal, whether the entity is a friend. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18, 19, 20)
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11. The identification system according to claim further comprising:
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a second array of antennas that comprises a plurality of antennas, wherein main antenna lobes of different antennas of the second array partially overlap to define a second array lobe; and wherein a beamwidth of the second array lobe is smaller than a beamwidth of each main antenna lobe of the different antennas of the second array; wherein a first frequency range of the first array of antennas differs from a second frequency range of the second array of antennas. - View Dependent Claims (12, 13, 14, 15, 16)
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21. A method for classifying an entity as a friend, the method comprising:
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providing, by a transmission circuit and to a first array of antennas, a radio frequency (RF) interrogation signal;
wherein the first array of antennas comprises a plurality of antennas, wherein main antenna lobes of different antennas of the first array partially overlap to define a first array lobe;
wherein a beamwidth of the first array lobe is smaller than a beamwidth of each main antenna lobe of the different antennas of the first array;transmitting by the first array of antennas the RF interrogation signal; receiving, by the first array of antennas, a RF response signal from the entity; and determining, based on the RF response signal, whether the entity is a friend.
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Specification