RF antenna system having low-power requirements for RFID tag communication
First Claim
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1. An RF antenna system for communication with an RFID tag, comprising:
- a terminal electrically coupled to an RF source and an RFID reader, said source electromagnetic excitation energy to the RFID tag, said reader able to receive an excitation signal from the RFID tag; and
a plurality of wire antennas extending from said terminal, each of said plurality of wire antennas having a first end and a second end with said first end electrically coupled to said terminal and each said second end is unencumbered,wherein at least a portion of said plurality of wire antennas include said second ends thereof is flexible in at least one direction.
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Abstract
An RF antenna system for RFID tag communication includes a terminal and wire antennas extending therefrom. Each wire antenna has a first end electrically coupled to the terminal and a second end that is unencumbered. At least a portion of each wire antenna to include the second end thereof is flexible in at least one direction so that an RFID tag of an RFID-tagged object contacts at least one of the wire antennas.
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Citations
28 Claims
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1. An RF antenna system for communication with an RFID tag, comprising:
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a terminal electrically coupled to an RF source and an RFID reader, said source electromagnetic excitation energy to the RFID tag, said reader able to receive an excitation signal from the RFID tag; and a plurality of wire antennas extending from said terminal, each of said plurality of wire antennas having a first end and a second end with said first end electrically coupled to said terminal and each said second end is unencumbered, wherein at least a portion of said plurality of wire antennas include said second ends thereof is flexible in at least one direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An RF antenna system for communication with an RFID tag, comprising:
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a terminal electrically coupled to an RF source and an RFID reader, said source emitting electromagnetic excitation energy to the RFID tag, said reader able to receive an excitation signal from the RFID tag; and a plurality of wire antennas, each of said plurality of wire antennas are electrically and mechanically coupled on just one end thereof to said terminal and extends away therefrom in a substantially straight-line fashion to an open-circuit termination that is mechanically free, wherein said plurality of wire antennas define a curtained arrangement, and wherein at least a portion of each of said plurality of wire antennas includes a cross-section that defines flexibility in at least one preferred direction. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An RFID interrogation system for communication with an RFID tag, comprising:
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an RF source emitting electromagnetic excitation energy to the RFID tag; an RFID reader able to receive an excitation signal from the RFID tag; a terminal electrically coupled to said RF source and said RFID reader; and a plurality of wire antennas extending from said terminal, each of said plurality of wire antennas having a first end and a second end with said first end electrically coupled to said terminal, and each said second end being unencumbered, wherein at least a portion of said plurality of wire antennas include said second ends thereof is flexible in at least one direction. - View Dependent Claims (28)
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Specification