DUAL ANTENNA RFID TAG
First Claim
Patent Images
1. A radio frequency identification (RFID) tag comprising:
- an antenna unit configured to communicate within a first bandwidth and/or within a second bandwidth; and
a voltage rectification unit configured to generate a plurality of DC power voltage impulses respectively corresponding to a plurality of radio signals from within the first and/or second bandwidths received at the antenna unit, the voltage rectification unit configured to rectify and to boost the received radio signals into the DC power voltage impulses.
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Abstract
A dual antenna RFID tag which can perform both Near Field (NF) communication and Far Field (FF) communication using a single RF tag is presented. The RFID tag includes an antenna unit and a voltage rectification unit. The antenna unit can perform communications in either or both a first and a second bandwidth. The voltage rectification unit can rectify and boost one or more radio signals received through the antenna unit and generate one or more power voltage impulses corresponding to the radio signals respectively.
13 Citations
36 Claims
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1. A radio frequency identification (RFID) tag comprising:
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an antenna unit configured to communicate within a first bandwidth and/or within a second bandwidth; and a voltage rectification unit configured to generate a plurality of DC power voltage impulses respectively corresponding to a plurality of radio signals from within the first and/or second bandwidths received at the antenna unit, the voltage rectification unit configured to rectify and to boost the received radio signals into the DC power voltage impulses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An RFID tag comprising:
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an antenna unit including; a first antenna configured to perform communications within a first bandwidth and a second antenna configured to perform communication within a second bandwidth; and a voltage rectification unit configured to generate one or more power voltages corresponding to one or more radio signals received from the antenna unit, and configured to rectify and boost the radio signals, wherein the voltage rectification unit comprises; a clamping circuit configured to clamp and output the radio signals; and a rectification circuit configured to rectify the signals outputted from the clamping circuit and to generate DC voltage impulses. - View Dependent Claims (32, 33, 34, 35, 36)
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Specification