Multi-Antenna Element Systems and Related Methods
First Claim
Patent Images
1. A radio frequency identification (RFID) tag comprising:
- an antenna system comprising;
a ground plane;
a first antenna element on a first side of the ground plane; and
a second antenna element on a second side of the ground plane opposite first antenna element;
a first radio frequency identification circuit coupled to the first antenna element.
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Abstract
Multi-Antenna element systems and related methods. At least some of the illustrative embodiments comprise a radio frequency identification (RFID) tag comprising an antenna system. The antenna system comprises a ground plane, a first antenna element on a first side of the ground plane, and a second antenna element on a second side of the ground plane opposite first antenna element. The illustrative RFID tag further comprises a first radio frequency identification circuit coupled to the first antenna element.
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Citations
32 Claims
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1. A radio frequency identification (RFID) tag comprising:
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an antenna system comprising; a ground plane; a first antenna element on a first side of the ground plane; and a second antenna element on a second side of the ground plane opposite first antenna element; a first radio frequency identification circuit coupled to the first antenna element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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a first radiative patch with an internal feed point; a second radiative patch with an internal feed point; and a ground element disposed between the first and second radiative patches and electrically isolated from the radiative patches; wherein the first and second radiative patches are configured to be driven at their respective feed points with a radio frequency signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method comprising:
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isolating a first antenna element of a radio frequency identification (RFID) tag from a RFID circuit of the RFID tag; and transmitting a value responsive to an interrogating signal, the transmitting from a second antenna element of the RFID tag, the second antenna element coupled to the RFID circuit. - View Dependent Claims (25, 26, 27)
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28. A system comprising:
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a first means for receiving and sending electromagnetic waves, the first means for receiving having an internally disposed means for insertion of a driving signal; a second means for receiving and sending electromagnetic waves, the second means for receiving having an internally disposed means for insertion of a driving signal; and a means for limiting directionality of electromagnetic waves, the means for limiting disposed between the first and second means for receiving, and the means for limiting electrically isolated from the first and second means for receiving; wherein the first and second means for receiving are configured to be driven at their respective means for insertion with a radio frequency signal. - View Dependent Claims (29, 30, 31, 32)
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Specification