Invention Grant
US08351959B2 Spatially selective UHF near field microstrip coupler device and RFID systems using device
有权
空间选择性UHF近场微带耦合器器件和RFID系统使用器件
- Patent Title: Spatially selective UHF near field microstrip coupler device and RFID systems using device
- Patent Title (中): 空间选择性UHF近场微带耦合器器件和RFID系统使用器件
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Application No.: US13422950Application Date: 2012-03-16
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Publication No.: US08351959B2Publication Date: 2013-01-08
- Inventor: Boris Y. Tsirline , Clive P. Hohberger , Robert Gawelczyk , Daniel Donato
- Applicant: Boris Y. Tsirline , Clive P. Hohberger , Robert Gawelczyk , Daniel Donato
- Applicant Address: US IL Lincolnshire
- Assignee: ZIH Corp.
- Current Assignee: ZIH Corp.
- Current Assignee Address: US IL Lincolnshire
- Agency: Alston & Bird LLP
- Main IPC: H04W24/00
- IPC: H04W24/00

Abstract:
A system having a UHF RFID transceiver is adapted to communicate exclusively with a single electro-magnetically coupled transponder located in a predetermined confined transponder operating region. The system includes a near field coupling device comprising a plurality of lines connected in parallel with an unmatched load. The near field coupling device may be formed, for example on a printed circuit board with a plurality of electrically interconnected traces and a ground plane. The system establishes, at predetermined transceiver power levels, a mutual electro-magnetic coupling which is selective exclusively for a single transponder located in a defined transponder operating region. Also included are methods for selective communication with the transponder in an apparatus such as a printer-encoder.
Public/Granted literature
- US20120176224A1 SPATIALLY SELECTIVE UHF NEAR FIELD MICROSTRIP COUPLER DEVICE AND RFID SYSTEMS USING DEVICE Public/Granted day:2012-07-12
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