System and method for providing a low and narrow-profile radio frequency identification (RFID) tag

• US 7,659,857 B2
• Filed: 06/29/2007
• Issued: 02/09/2010
• Est. Priority Date: 07/05/2006
• Status: Active Grant

• Current Assignee: Patrick F. King
• Original Assignee: Patrick F. King
• Inventors: King, Patrick F.
• Primary Examiner(s): PHAN, THO GIA
• Application Number:
  US11/771,600
• Publication Number:
  US 20080122704A1
• Time in Patent Office: 956 Days
• Field of Search: 343/702, 343/873, 340/572.1, 340/572.7, 340/572.8
• US Class Current: 343/702
• 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: G06K 19/07771 the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
• 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 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 1/52 Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure absorbing means H01Q17/00
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence
• CPC Class Codes: H01Q 9/30 with feed to end of elongated active element, e.g. unipole H01Q9/44 takes precedence
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making
• CPC Class Codes: Y10T 29/49018 with other electrical component

Abstract

Methods and systems for wireless devices are disclosed. According to one system, a radio frequency identification (RFID) tag includes an RFID circuit packaged within a chip carrier package. The chip carrier package bonds out a first antenna connection for the RFID circuit. An antenna including a conductive lead is interfaced with the first antenna connection. The chip carrier package and the first conductive lead are coupled to a first side of a first spacer. A second spacer having a second dielectric constant greater than the first dielectric constant is coupled to a second side of the first spacer. The second spacer isolates the RFID circuit from a metal surface.

Claims

1. A method of attaching a wireless communication device to a cylindrical surface, comprising:

attaching wireless communication electronics to an inside surface of a flexible cylindrical material, wherein the flexible cylindrical material recoils when released after being unrolled; and

unrolling, at least partially, the flexible cylindrical material;

placing a first edge of the at least partially unrolled flexible cylindrical material onto the cylindrical surface; and

allowing the flexible cylindrical material to recoil around the cylindrical surface to attach the wireless communication electronics to the cylindrical surface.

2. The wireless communication device of claim 1 further comprising encapsulating at least a portion of the wireless communication electronics within an environmental encapsulate to protect the wireless communication electronics from at least one of a contaminant, water, temperature, and impact.

3. The wireless communication device of claim 2 further comprising fastening tape to a second edge of the flexible cylindrical material and to an outer surface of the flexible cylindrical material near the second edge of the flexible cylindrical material.