Antenna Construction, for Example for an RFID Transponder System

Heikki Seppa (Inventor), Kaarle Jaakkola (Inventor)

Research output: PatentPatent


The invention relates to an antenna construction for a double-ended antenna circuit 4. The antenna construction comprises a conductive ground place (6) on a first surface, a transmission line (3) on at least one second surface, connected to the ground plane (6) through a fold (1) in the edge of the antenna construction, so that the fold acts as a primary source of a magnetic field, an insulation layer (7) arranged between the first and the second surfaces, and an electronic component (4), in which there is a double-ended antenna connector, connected to the antenna construction. According to the invention, the electronic component (4) is attached to the second surface of the antenna construction and connected from the first antenna terminal to the transmission line (3) and from the second terminal to either a second transmission line (3) or the fold (1).

Patent family as of 27.8.2021
CN101194393 A 20080604 CN200680016111 20060508      
CN101194393 B 20130327 CN200680016111 20060508      
EP1886379 A1 20080213 EP20060743517 20060508      
EP1886379 A4 20140319 EP20060743517 20060508      
FI119668 B 20090130 FI20050000507 20050512      
FI20050507 A 20061113 FI20050000507 20050512      
FI20050507 A0 20050512 FI20050000507 20050512      
HK1120931 A1 20090409 HK20080112600 20081118      
HK1120931 A3 20090409 HK20080112600 20081118      
HK1120931 B 20130816 HK20080112600 20081118      
US2009096612 AA 20090416 US20060920235 20060508      
US7724143 BB 20100525 US20060920235 20060508      
WO06120287 A1 20061116 WO2006FI00149 20060508

Link to current patent family on right 

Original languageEnglish
Patent numberUS2009096612
IPCH01Q 7/ 00 A I
Priority date8/05/06
Publication statusPublished - 16 Apr 2009
MoE publication typeH1 Granted patent


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