Patent ID: 7978078

Claim:
An electronic article surveillance antenna for generating an electromagnetic field to interrogate and detect electronic surveillance markers, comprising: a core formed by a plurality of amorphous alloy ribbons insulated from each other and stacked to form a substantially elongated solid rectangular shape; and a coil winding of wire disposed around at least a portion of said core, said coil winding of wire insulated from said core, said core and said coil winding being of a minimum size for generation of an electromagnetic field for interrogation and detection of electronic article surveillance markers; wherein said core includes a central member about 50 centimeters long and about 2 centimeters wide comprised of about 25 amorphous alloy ribbons, each amorphous alloy ribbon about 23 microns thick stacked and laminated together forming said central core member, and a first outer member and a second outer member disposed on opposite sides of said central member, each of said first outer member and said second outer member about 30 centimeters long and 2 centimeters wide comprised of about 15 amorphous alloy ribbons, each amorphous alloy ribbon about 23 microns thick stacked and laminated together forming said first outer layer and said second outer layer, respectively, said central core member and said first and said second outer members together form said core.