Antenna core and method for production of an antenna core

Details Antenna core and method for production of an antenna core Antenna core and method for production of an antenna core

2005-07-21

2009-08-04

Wimer, Michael C (Department: 2821)

Communications: radio wave antennas

Antennas

Including magnetic material

C343S788000

Reexamination Certificate

active

07570223

ABSTRACT:
An antenna core comprises a flexible stack of a plurality of oblong soft-magnetic strips consisting of an amorphous or nanocrystalline alloy. The strips of said antenna core are separated from one another by an electrically insulating film each. The amorphous or nanocrystalline alloy has a magnetostriction value lambdas in the range of +4 <·>10<−6> to −4<·>10<−6> and a linear BH loop. The coefficient of induction L of the antenna core changes at 60 kHz at a center distortion by 25% of its length by less than 10% and the quality Q of the antenna core is >=10 at 60 kHz.

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