RADIO-FREQUENCY IDENTIFICATON (RFID) ANTENNA, TAGS AND COMMUNICATIONS SYSTEMS USING THE SAME
First Claim
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1. A radio-frequency identification (RFID) tag antenna, comprising:
- a patterned conductive loop having a plurality of longitudinal conductive sections and a plurality of transverse conductive sections connecting to each end of the longitudinal conductive sections to serve as a matching network;
a pair of extended conductive arms electrically connected to the patterned conductive loop via two nodes; and
a bonding pad with an RFID chip disposed thereon, arranged at the central area between the pair of extended conductive arms.
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Abstract
Radio-frequency identification (RFID) tag antenna, tags and communications systems using the same are presented. The RFID tag antenna includes a patterned conductive loop having a plurality of longitudinal conductive sections and a pair of transverse conductive sections connecting to each end of the longitudinal conductive sections to serve as a matching network. A pair of extended conductive arms is electrically connected to the patterned conductive loop via two nodes. A bonding pad with an RFID chip disposed thereon is arranged at the central area of the pair of extended conductive arms.
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Citations
22 Claims
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1. A radio-frequency identification (RFID) tag antenna, comprising:
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a patterned conductive loop having a plurality of longitudinal conductive sections and a plurality of transverse conductive sections connecting to each end of the longitudinal conductive sections to serve as a matching network; a pair of extended conductive arms electrically connected to the patterned conductive loop via two nodes; and a bonding pad with an RFID chip disposed thereon, arranged at the central area between the pair of extended conductive arms. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A radio-frequency identification (RFID) tag device, comprising:
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a substrate; a patterned conductive loop disposed on the substrate, wherein the patterned conductive loop has a plurality of longitudinal conductive sections and a plurality of transverse conductive sections connecting to each end of the longitudinal conductive sections to serve as a matching network; a pair of extended conductive arms electrically connected to the patterned conductive loop via two nodes; and a bonding pad with an RFID chip disposed thereon, arranged at the central area of the pair of extended conductive arms. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A radio-frequency identification (RFID) communications system, comprising:
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an RFID tag device, comprising; a substrate; a patterned conductive loop disposed on the substrate, wherein the patterned conductive loop has a plurality of longitudinal conductive sections and a plurality of transverse conductive sections connecting to each end of the longitudinal conductive sections to serve as a matching network; a pair of extended conductive arms electrically connected to the patterned conductive loop via two nodes; and a bonding pad with an RFID chip disposed thereon arranged at the central area between the pair of extended conductive arms; a read antenna sensing the RFID tag device; and a microprocessor processing and transmitting a signal sensed by the read antenna. - View Dependent Claims (19, 20, 21, 22)
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Specification