RFID antenna and recording device equipped with RFID antenna

Abstract

Conventional RFID antennas using flat patch antennas, when used in the UHF band, experienced a concentration of current at the edges of the antenna pattern due to the skin effect, with almost no current flowing elsewhere. As a result, a strong electromagnetic field was generated at the edges of the antenna pattern, but only a weak electromagnetic field was generated in the center, leading to the problem of poor communication with RFID tags in the center of the antenna. [Solution] An RFID antenna 6 for communicating with an RFID tag, wherein a conductive pattern 25 made of metal foil is arranged on a substrate 21, and the conductive pattern includes meander shapes.

Claims

1. An antenna for communicating with an RFID tag, wherein a conductive pattern made of metal foil is arranged on a substrate, and the conductive pattern is characterized in that it includes meander shapes.

2. A transport means for transporting label sheets with RFID tags attached to a backing sheet, Recording means for recording information on the label, An antenna installed in the transport path of the label sheet, wherein a conductive pattern made of metal foil is arranged on a substrate, and the conductive pattern is characterized in that it includes a meander shape portion. A writing means for writing information to the RFID tag using the antenna, A recording device characterized by comprising the following features.

3. The recording device according to claim 2, characterized in that the meander shape portion of the antenna is provided wider than the area through which the label passes in the width direction of the label.

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