RFID TAG, RFID TAG SET AND RFID SYSTEM
First Claim
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1. An RFID tag comprising:
- a grounding conductive plate;
a first dielectric substrate stacked on one surface of the grounding conductive plate;
an antenna section including a first antenna conductor and a second antenna conductor arranged on the first dielectric substrate;
an IC chip for connecting the first antenna conductor and the second antenna conductor;
a connecting portion for connecting either the first antenna conductor or the second antenna conductor and the grounding conductive plate; and
a second dielectric substrate arranged on the other surface of the grounding conductive plate, whereinan electrical length of the antenna section and an electrical length of the grounding conductive plate are different.
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Abstract
Provided is an RFID tag by which the communication distance is not shortened even when wireless communication is performed with a metal object and broadband and high gain are achieved. An RFID tag set and an RFID system are also provided. In an RFID tag (1), an antenna section (4) is arranged on a first dielectric substrate (3), a grounding conductive plate (2) is arranged between the first dielectric substrate (3) and a second dielectric substrate (5), and the electrical length of the antenna section and that of the grounding conductive plate are set different from each other.
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Citations
9 Claims
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1. An RFID tag comprising:
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a grounding conductive plate; a first dielectric substrate stacked on one surface of the grounding conductive plate; an antenna section including a first antenna conductor and a second antenna conductor arranged on the first dielectric substrate; an IC chip for connecting the first antenna conductor and the second antenna conductor; a connecting portion for connecting either the first antenna conductor or the second antenna conductor and the grounding conductive plate; and a second dielectric substrate arranged on the other surface of the grounding conductive plate, wherein an electrical length of the antenna section and an electrical length of the grounding conductive plate are different. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification