Method and systems of tagging objects and reading tags coupled to objects
First Claim
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1. A system comprising:
- a first circuit comprising a first antenna element anda first isolation circuit; and
a second circuit comprising a second antenna element,wherein in the event that the first antenna element is not exposed to a signal, the first isolation circuit decouples the first antenna element from the first circuit.
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Abstract
Methods and systems of tagging objects and reading tags coupled to objects. At least some of the illustrative embodiments are systems comprising a reading antenna, a tag reader coupled to the reading antenna, and a radio frequency identification (RFID) tag comprising a tag antenna electromagnetically coupled to the reading antenna. The RFID tag couples to an object such as the body of a living organism or a metallic article. Moreover, the tag antenna has a far-field radiation pattern in a direction away from the object that is substantially unaffected by proximity of the RFID tag to the object, and substantially unaffected by which surface of the RFID tag faces the object.
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Citations
11 Claims
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1. A system comprising:
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a first circuit comprising a first antenna element and a first isolation circuit; and a second circuit comprising a second antenna element, wherein in the event that the first antenna element is not exposed to a signal, the first isolation circuit decouples the first antenna element from the first circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification