UHF RFID DEVICE FOR COMMUNICATING WITH UHF RFID TAGS WITHIN A SMALL CAVITY
First Claim
1. A UHF radiofrequency identification (RFID) device operating at an Ultra-High Frequency (UHF) wavelength to enable communication of a UHF radio frequency identification (RFID) reader with a number of UHF RFID tags positioned within at least one cavity having an internal volume with a largest dimension, wherein said largest dimension is below twice said UHF wavelength.
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Abstract
A UHF radiofrequency identification (RFID) device operating at an UHF wavelength for enabling communication of an UHF RFID reader with UHF RFID tags positioned within a cavity having an internal volume with a largest dimension that is below twice said UHF wavelength. The device comprises a wire wave guide having an entry extremity and at least one exit extremity and positioned within said at least one cavity above a ground surface, wherein said entry extremity is fed by said UHF RFID reader and said at least one exit extremity is connected to said ground surface via a load.
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Citations
15 Claims
- 1. A UHF radiofrequency identification (RFID) device operating at an Ultra-High Frequency (UHF) wavelength to enable communication of a UHF radio frequency identification (RFID) reader with a number of UHF RFID tags positioned within at least one cavity having an internal volume with a largest dimension, wherein said largest dimension is below twice said UHF wavelength.
- 12. A toolbox with a plurality of compartments, the bottom of which forms a ground surface, wherein each compartment comprises a respective Ultra-High Frequency (UHF) radio frequency identification (RFID) device, the UHF RFID devices which operate at an UHF wavelength to enable communication of a UHF RFID reader with UHF RFID tags positioned within at least one cavity having an internal volume with a largest dimension, wherein said largest dimension is below twice said UHF wavelength.
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14. A method for enabling communication of an Ultra-High Frequency (UHF) radio frequency identification (RFID) reader with UHF RFID tags operating at an UHF wavelength and positioned within at least one cavity, whose largest dimension is below twice said UHF wavelength, comprising:
- positioning within said at least one cavity above a ground surface a wire wave guide having an entry extremity and at least one exit extremity, wherein said wire wave guide is configured to generate a propagative non-radiating UHF electromagnetic wave within said at least one cavity and wherein said entry extremity of said wire wave guide is fed by said UHF RFID reader and said at least one exit extremity of said wire wave guide is connected to said ground surface via a load, and reading the information of said UHF RFID tags.
- View Dependent Claims (15)
Specification