Magnetic antenna and board mounted with the same

Details Magnetic antenna and board mounted with the same Magnetic antenna and board mounted with the same

2008-01-03

2011-12-06

Mancuso, Huedung (Department: 2821)

Communications: radio wave antennas

Antennas

Including magnetic material

Reexamination Certificate

active

08072387

ABSTRACT:
There is provided a magnetic antenna, suitable for use in an RFID tag and an RFID tag reader/writer, which operates stable even if brought close to a metallic object and suitable for mass-production, and a board mounted with the magnetic antenna. The magnetic antenna has a coil comprising a magnetic layer and a conductive layer provided on the magnetic layer via an insulating layer. Alternatively, the magnetic antenna has a plurality of coils each comprising a magnetic layer having a square or rectangular shape and arranged radially. One ends of the coils are connected in series or parallel to one another by the magnetic layers thereof such that the coils have the same polarity. An insulating layer is provided on one or both outer surface of the coils, and a conductive layer is provided on an outer surface of at least one of the insulating layers. The magnetic antenna is produced using an LTCC technology.

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English translation of Official Action in JP 2005-206254 dated Aug. 10, 2010.
International Search Report dated Aug. 22, 2006.

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