RFID TAG INCLUDING MULTI-VOLTAGE MULTIPLIERS AND OPERATING METHOD THEREOF
First Claim
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1. An RFID tag having multi-voltage multipliers comprising:
- two or more antennas configured to receive electromagnetic waves emitted from a reader;
a first voltage multiplier configured to be connected to one of the antennas and change the received AC electromagnetic waves to DC voltage signals;
a modulator configured to transmit backscattering communication signals by changing impedance through the antenna connected to the first voltage multiplier; and
a second voltage multiplier configured to be connected to another antenna among the antennas and change AC electromagnetic waves received from the other antenna to DC voltage signals.
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Abstract
There is provided an RFID tag having multi-voltage multipliers including two or more antennas configured to receive electromagnetic waves emitted from a reader, a first voltage multiplier configured to be connected to one of the antennas and change the received AC electromagnetic waves to DC voltage signals, a modulator configured to transmit backscattering communication signals by changing impedance through the antenna connected to the first voltage multiplier, and a second voltage multiplier configured to be connected to another antenna among the antennas and change AC electromagnetic waves received from the other antenna to DC voltage signals.
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Citations
5 Claims
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1. An RFID tag having multi-voltage multipliers comprising:
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two or more antennas configured to receive electromagnetic waves emitted from a reader; a first voltage multiplier configured to be connected to one of the antennas and change the received AC electromagnetic waves to DC voltage signals; a modulator configured to transmit backscattering communication signals by changing impedance through the antenna connected to the first voltage multiplier; and a second voltage multiplier configured to be connected to another antenna among the antennas and change AC electromagnetic waves received from the other antenna to DC voltage signals. - View Dependent Claims (2, 3)
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4. A method of transmitting and receiving using multi-voltage multipliers in an RFID tag comprising:
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determining whether modulated signals are transmitted; transmitting backscattering communication signals to a reader through an antenna connected to a voltage multiplier by modulating signals when the modulated signals are transmitted; and changing AC signals received from the reader through each of one or more other antennas to DC voltage signals through each of one or more other voltage multipliers. - View Dependent Claims (5)
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Specification