Printed circuit board with RFID antenna

• US 7,432,816 B1
• Filed: 10/13/2005
• Issued: 10/07/2008
• Est. Priority Date: 10/13/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Pradhan, Salil, Lyon, Geoff, Ku, Joseph
• Primary Examiner(s): Lieu; Julie
• Application Number:
  US11/249,674
• Time in Patent Office: 1,090 Days
• Field of Search: None
• US Class Current: 340/572.7
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• 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 1/40 Radiating elements coated with or embedded in protective material

Abstract

A printed circuit board (PCB) includes an antenna for an RFID chip. An RFID chip for a tag is operable to be placed on the PCB such that the RFID chip is connected to the antenna and is operable to use the antenna to transmit data.

Claims

1. An apparatus comprising:

a printed circuit board (PCB); and

an antenna on the PCB, wherein at least a portion of the antenna is provided inside of the PCB and is connected to the RFID chip through at least one via,

wherein a radio frequency identification device (RFID) chip is operable to be placed on the PCB such that the RFID chip is connected to the PCB and the antenna and is operable to transmit data via the antenna.

2. The apparatus of claim 1, further comprising:

a connector on the PCB connecting the RFID chip to the antenna, wherein the connector includes an interface allowing the RFID chip to be mounted on the PCB after the PCB and the antenna on the PCB are manufactured.

3. The apparatus of claim 1, wherein the antenna is provided on an outer layer of the PCB.

4. The apparatus of claim 3, wherein the antenna is provided along an edge of the PCB.

5. The apparatus of claim 1, wherein the at least a portion of the antenna comprises a ground plane or a power plane for the PCB.

6. The apparatus of claim 1, wherein the antenna comprises a dipole antenna.

7. The apparatus of claim 1, wherein the antenna comprises at least one loop.

8. The apparatus of claim 1, further comprising:

a main electronic circuit area, wherein at least one electronic circuit is provided on the PCB in the main electronic circuit area.

9. The apparatus of claim 8, wherein at least a portion of the antenna is provided on a surface of the PCB, and the at least a portion of the antenna is located away from the main electronic circuit area on the surface.

10. A method of manufacturing a PCB having an antenna, the method comprising:

providing a PCB; and

providing an antenna on a layer of the PCB, wherein an RFID chip on the PCB is operable to use the antenna to transmit or receive information,

wherein providing an antenna on a layer of the PCB further includes

providing at least a portion of the antenna on an inner layer of the PCB; and

providing at least one via in the PCB to connect the at least a portion of the antenna on the inner layer to the RFID chip, and the at least one via connects the at least a portion of the antenna on the inner layer of the PCB to another portion of the antenna on an outer layer of the PCB.

11. The method of claim 10, further comprising:

providing a connector on the PCB, wherein the connector is operable to receive the RFID chip and connect the RFID chip to the antenna, and wherein the connector includes an interface allowing the RFID chip to be mounted on the PCB after the PCB and the antenna on the PCB are manufactured.

12. The method of claim 10, wherein providing an antenna on the PCB further comprises:

providing a trace on an outer layer of the PCB.

13. The method of claim 12, wherein providing a trace on an outer layer of the PCB further comprises:

providing the trace along an edge of the PCB.

14. The method of claim 10, wherein the at least a portion of the antenna comprises a ground plane or a power plane for the PCB.

15. The method of claim 10, wherein the antenna comprises one of a dipole antenna and a loop antenna.

16. An apparatus comprising:

a PCB

a main circuit area on the PCB including at least one circuit;

an antenna on the PCB;

an RFID chip not including an internal antenna and electrically isolated from the main circuit area, wherein the RFID chip is connected to the antenna and is smaller than an RFID tag having an internal antenna and at least a portion of the antenna is provided inside of the PCB and is connected to the RFID chip through at least one via; and

a connector on the PCB connecting the RFID chip to the antenna, wherein the connector includes an interface allowing the RFID chip to be mounted on the PCB after the PCB and the antenna on the PCB are manufactured.

17. The apparatus of claim 16, wherein the at least a portion of the antenna comprises a ground plane or a power plane for the PCB.