Insertion-port loop antenna and non-contact type...

Details Insertion-port loop antenna and non-contact type... Insertion-port loop antenna and non-contact type...

2007-02-06

2007-02-06

Wong, Don (Department: 2163)

Communications: radio wave antennas

Antennas

Loop type

C343S866000, C455S557000

Reexamination Certificate

active

10943881

ABSTRACT:
An insertion-port loop antenna has a wide communication region for a non-contact type IC card inserted into an insertion port of a card reader, etc. An insertion-port loop antenna is mounted in the vicinity of an insertion port, through which a non-contact type communication medium is inserted. The insertion-port loop antenna comprises two loops. An upper loop is arranged above a long side of the insertion port. A lower loop is arranged below the long side of the insertion port. The two loops are opposite to each other in a direction of winding. Thereby, magnetic flux is generated between the upper loop and the lower loop. The magnetic flux is generated in front of the insertion port. Therefore, it is possible to begin communication before the non-contact type IC card is inserted into the insertion port.

REFERENCES:
patent: 5382781 (1995-01-01), Inoue
patent: 5602556 (1997-02-01), Bowers
patent: 6422475 (2002-07-01), May
patent: 6525694 (2003-02-01), Jiang et al.
patent: 2003/0184493 (2003-10-01), Robinet et al.
patent: 2002298117 (2002-10-01), None
patent: 2003-099730 (2003-04-01), None
patent: WO 9746964 (1997-12-01), None

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