Directional Radio Frequency Identification (RFID) Label Tag For Measuring Postal Matter Delivery Service
First Claim
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1. A Radio Frequency Identification (RFID) tag, comprising:
- a first tag unit;
a second tag unit; and
an adhesion plate where the first tag unit and the second tag unit are attached,wherein the first tag unit comprises;
a first tag antenna to determine a resonance frequency of the first tag unit;
a first tag chip to store first information; and
a first feed line being connected to the first tag antenna to supply a power to the first tag chip, andthe second tag unit comprises;
a second tag antenna to determine a resonance frequency of the second tag unit;
a second tag chip to store second information; and
a second feed line being connected to the second tag antenna to supply a power to the second tag chip, andthe first tag antenna and the second tag antenna operate using a coupling characteristic between the first tag antenna and the second tag antenna.
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Abstract
Provided are a Radio Frequency Identification (RFID) tag, a method of manufacturing the RFID system, and an RFID system. The RFID tag may include a plurality of tag units. An input impedance of a tag antenna may be matched based on a coupling characteristic of the plurality of tag units, and a radiation pattern of the tag antenna may be set.
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Citations
11 Claims
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1. A Radio Frequency Identification (RFID) tag, comprising:
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a first tag unit; a second tag unit; and an adhesion plate where the first tag unit and the second tag unit are attached, wherein the first tag unit comprises; a first tag antenna to determine a resonance frequency of the first tag unit; a first tag chip to store first information; and a first feed line being connected to the first tag antenna to supply a power to the first tag chip, and the second tag unit comprises; a second tag antenna to determine a resonance frequency of the second tag unit; a second tag chip to store second information; and a second feed line being connected to the second tag antenna to supply a power to the second tag chip, and the first tag antenna and the second tag antenna operate using a coupling characteristic between the first tag antenna and the second tag antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manufacturing a Radio Frequency Identification (RFID) tag comprising a first tag unit, a second tag unit, and an adhesion plate, the method comprising:
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determining a first setup value that is a slot interval of each of a first feed line of the first tag unit and a second feed line of the second tag unit based on a reactance component of an input impedance required for operation of the RFID tag; determining a second setup value that is an interval between a first tag antenna of the first tag unit and a second tag antenna of the second tag unit based on a resistance component of the input impedance required for operation of the RFID tag; and attaching, to the adhesion plate, the first tag unit comprising the first feed line according to the first setup value and the second tag unit comprising the second feed line according to the first setup value to have an interval according to the second setup value.
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10. A Radio Frequency Identification (RFID) system, comprising:
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an RFID tag comprising a first tag unit, a second tag unit, and an adhesion plate; a reader antenna to receive a radio signal from the RFID tag; and a reader to extract tag information in the received radio signal, wherein the adhesion plate fixes a location of each of the first tag unit and the second tag unit, the first tag unit comprises; a first tag antenna to determine a resonance frequency of the first tag unit; a first tag chip to store the tag information; and a first feed line being connected to the first tag antenna to supply a power to the first tag chip, the second tag unit comprises; a second tag antenna to determine a resonance frequency of the second tag unit; a second tag chip to store the tag information; and a second feed line being connected to the second tag antenna to supply a power to the second tag chip, and the first tag antenna and the second tag antenna perform a radio communication with the reader antenna using a coupling characteristic between the first tag unit and the second tag unit. - View Dependent Claims (11)
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Specification