RFID tag

• US 20070040028A1
• Filed: 11/29/2005
• Published: 02/22/2007
• Est. Priority Date: 08/18/2005
• Status: Active Grant

• Current Assignee: Fujitsu Frontech Limited (Fujitsu Limited)
• Original Assignee: Fujitsu Frontech Limited (Fujitsu Limited), Fujitsu Limited
• Inventors: Kawamata, Hiroshi
• Granted Patent: US 7,619,530 B2
• Time in Patent Office: Days
• US Class Current: 235/435
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: Y10T 29/49124 On flat or curved insulated base, e.g., printed circuit, etc.

Abstract

An RFID tag includes an RFID unit and an antenna unit. The RFID unit is formed in a form of a minute dipole antenna having a predetermined length and includes an IC chip. The antenna unit includes an antenna pattern and an RFID mounting portion. Lengths of the RFID unit and the antenna unit are substantially identical. The RFID unit and the antenna can be manufactured independently.

Claims

1. A radio frequency identification tag, comprising:

an IC chip unit formed in a form of a dipole antenna; and

an antenna unit including an antenna pattern and a chip mounting portion in which the IC chip unit is to be mounted, wherein

the IC chip unit and-the chip mounting portion have a substantially identical length.

2. The radio frequency identification tag according to claim 1, wherein the length of the IC chip unit is set so as to make the IC chip capable of transmitting and receiving radio waves having the shortest wavelength.

3. The radio frequency identification tag according to claim 1, wherein the IC chip unit further includes a conductive adhesive.

4. The radio frequency identification tag according to claim 1, wherein the antenna unit includes an inductor mounting portion in which an inductor is mounted.