RFID TRANSPONDER
First Claim
Patent Images
1. A radio frequency identification (RFID) transponder comprising:
- an antenna comprising at least two connected dipoles, and having an input port feeding only one of the dipoles;
a conductive ground plane separated by a predetermined distance from the antenna by a dielectric; and
a transponder electrically connected to the input port and operative to produce a response signal when the transponder receives a signal at a given frequency from the antenna.
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Abstract
A radio frequency identification (RFID) transponder comprising:
- an antenna comprising at least two connected dipoles, and having an input port feeding one of the dipoles;
- a conductive ground plane separated by a predetermined distance from the antenna by a dielectric; and
- a transponder electrically connected to the input port and operative to produce a response signal when the transponder receives a signal at a given frequency from the antenna.
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Citations
28 Claims
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1. A radio frequency identification (RFID) transponder comprising:
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an antenna comprising at least two connected dipoles, and having an input port feeding only one of the dipoles; a conductive ground plane separated by a predetermined distance from the antenna by a dielectric; and a transponder electrically connected to the input port and operative to produce a response signal when the transponder receives a signal at a given frequency from the antenna. - View Dependent Claims (2, 3, 4, 5, 10, 11, 12, 16, 17, 18, 19, 21)
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6. A radio frequency identification (RFID) transponder comprising:
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an antenna comprising at least three connected dipoles, and having an input port feeding only one of the dipoles, and a transponder electrically connected to the input port and operative to produce a response signal when the transponder receives a signal at a given frequency from the antenna. - View Dependent Claims (7, 8, 9, 13, 14, 15, 20)
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22. An antenna comprising:
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a conductive ground plane, at least two connected dipoles forming a structure substantially parallel to the conductive ground plane, and an input port feeding only one of the dipoles. - View Dependent Claims (23, 24, 25, 26, 27)
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28. An antenna comprising:
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at least three connected dipoles, and an input port that feeds the dipoles.
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Specification