Battery-assisted backscatter RFID transponder
First Claim
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1. A Radio Frequency (RF) transponder comprising:
- an integrated circuit;
an electrochemical power source electrically coupled to said integrated circuit;
an antenna structure including a backscatter modulation element coupled to said integrate circuit; and
wherein said transponder has a thickness of less than 1 mm.
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Abstract
A radio frequency transponder includes at least one battery, which is coupled to provide electrical power for operating the transponder and at least one antenna, which is configured to receive and backscatter RF interrogation radiation from an interrogation device. An integrated circuit is arranged to store a code including information and, powered only with energy provided by the battery, to vary a radiation characteristic of the antenna responsively to the code so as to modulate the information onto the backscattered radiation.
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Citations
19 Claims
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1. A Radio Frequency (RF) transponder comprising:
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an integrated circuit; an electrochemical power source electrically coupled to said integrated circuit; an antenna structure including a backscatter modulation element coupled to said integrate circuit; and wherein said transponder has a thickness of less than 1 mm. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A Radio Frequency (RF) transponder comprising:
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an integrated circuit; an electrochemical power source electrically coupled to said integrated circuit; an antenna structure including a backscatter modulation element coupled to said integrate circuit; and wherein said transponder is substantially flexible. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A Radio Frequency (RF) transponder comprising:
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an integrated circuit; an electrochemical power source electrically coupled to said integrated circuit; an antenna structure including a backscatter modulation element coupled to said integrate circuit; and wherein said transponder has a thickness of less than 5 mm. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification