Method for optimizing the design and implementation of RFID tags
AssigneeSymbol Technologies, Inc.
InventorRaj Bridgelall
Life of this patent
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Abstract
A method is provided for optimizing the design parameters of a RFID tag for use with a RFID reader in a RFID system. In the method, a desired frequency band that the RFID tag will operate in is chosen. Additionally, a maximum acceptable cost for the RFID tag, a minimum acceptable data range for the RFID tag and a minimum operating voltage for the RFID tag are chosen. For a given cost, an optimal data rate is calculated by varying a carrier modulation period of an interrogation signal generated by the RFID reader and antenna capacitance of the RFID tag. Next, an optimal range for a given operating voltage is calculated using the optimal data rate.
Claims7
A method for optimizing the design parameters of an RFID tag for use with a RFID reader in a RFID system, the method comprising the steps of:
- selecting a desired frequency band that the RFID tag will operate in;
- selecting an acceptable minimum range between the RFID tag and the RFID reader;
- selecting a maximum acceptable cost for the RFID tag and a minimum acceptable data rate for the RFID tag.
- selecting a minimum operating voltage for the RFID tag;
- calculating an optimal data rate by varying a carrier modulation period of an interrogation signal generated by the RFID reader and an antenna capacitance of the RFID tag;
- and
- calculating an optimal range for a given operating voltage and the calculated optimal data rate.
Dependencies are inferred from the claim text.