UHF RFID TAG COMPRISING SEPARATE LOOP PORTION SHEET AND DIPOLE PORTION SHEET

• US 20150069135A1
• Filed: 02/01/2012
• Published: 03/12/2015
• Est. Priority Date: 12/22/2011
• Status: Abandoned Application

• Current Assignee: exax, Inc.
• Original Assignee: exax, Inc.
• Inventors: Kang, Min Suk, Yang, Young Mi, Goo, Young Ran, Han, Seung Jun, Lee, Hyun Mi, Heo, Soon Yeong
• Application Number:
  US14/367,904
• Publication Number:
  US 20150069135A1
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: G06K 19/07783 the coil being planar
• CPC Class Codes: G06K 19/07786 the antenna being of the HF type, such as a dipole
• CPC Class Codes: G06K 19/07794 the record carrier comprising a booster or auxiliary antenna in addition to the antenna connected directly to the integrated circuit
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H01Q 9/065 Microstrip dipole antennas patch antenna H01Q9/0407

Abstract

The present invention relates to a UHF RFID tag, and provides a set of UHF RFID tag comprising a loop-patterned sheet on which a RFID chip is mounted so as to form a closed loop and a dipole-patterned sheet that is separate from the other.

According to the present invention, loop-patterned sheets having simple form and small size can be mass-produced in a few simple types. A mounting process for a RFID chip on the loop-patterned sheets which require precise work can be simplified. In addition, a set of RFID tag according to the present invention can be applied in various environments by combining a few types of the loop-patterned sheet and various types of dipole-patterned sheets.

Claims

1. A set of UHF RFID tag consisting of a loop-patterned sheet on which a RFID chip is mounted so as to form a closed loop and a dipole-patterned sheet.

2. A set of UHF RFID tag according to claim 1, wherein the patterns on the loop-patterned sheet and on the dipole-patterned sheet are formed by direct printing method using conductive ink.

3. A set of UHF RFID tag according to claim 1, wherein substrates of the loop-patterned sheet and the dipole-patterned sheet are made of polyester, paper or polyimide.

4. A set of UHF RFID tag according to claim 2, wherein the loop-patterned sheet on which an RFID chip is mounted so as to form a closed loop, is continuously prepared by a roll to roll method.

5. a set of UHF RFID tag according to claim 1, wherein the loop-patterned sheet and the dipole-patterned sheet are disposed with insertion of packing paper having a thickness of 5 mm or less between each other or are aligned within a range of 4 cm or less in longitudinal direction of an antenna and 10 mm or less in lateral direction of the antenna from conformity.