Invention Grant
- Patent Title: Antenna construction, for example for an RFID transponder system
- Patent Title (中): 天线结构，例如RFID应答器系统
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Application No.: US14355850Application Date: 2012-10-31
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Publication No.: US09349091B2Publication Date: 2016-05-24
- Inventor: Kaarle Jaakkola
- Applicant: Teknologian tutkimuskeskus VTT
- Applicant Address: FI VTT
- Assignee: Teknologian tutkimuskeskus VTT
- Current Assignee: Teknologian tutkimuskeskus VTT
- Current Assignee Address: FI VTT
- Agency: Seppo Laine Oy
- Priority: FI20116088 20111104
- International Application: PCT/FI2012/051058 WO 20121031
- International Announcement: WO2013/064741 WO 20130510
- Main IPC: G06K19/06
- IPC: G06K19/06 ; G06K19/077 ; H01Q1/22 ; H01Q7/00 ; H01Q9/26 ; H01Q23/00 ; H01Q9/28
Abstract:
The invention relates to an antenna construction for an RFID chip for long ranges, which comprises a substrate, an antenna of conducting material supported by the substrate, the antenna is formed as a magnetic dipole, and coupling means for coupling the antenna to a circuit, which coupling means are formed by overlapping extensions of the antenna conductor. In accordance with the invention the antenna is formed of at least three sections each of different width W1, W2 and W3, where the sections are widest and the section is the narrowest W2 with an optimized shape.
Public/Granted literature
- US20140374490A1 Antenna Construction, for example for an RFID Transponder System Public/Granted day:2014-12-25
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