Patent ID: 7091858
Filing Date: 2006-08-15
Classification: G06K,G08B,H01Q

Abstract:
1. An electronic article surveillance antenna system for wide exit interrogation zones, comprising: a first and a second transmit antenna, each of said first and said second transmit antennas adapted for installation on opposite sides of a wide interrogation zone; a third transmit antenna adapted for installation within a region across at least a portion of the wide interrogation zone, said first, said second, and said third transmit antennas connectable to a transmitter for generation of an interrogation signal for transmission into the wide interrogation zone; and, a plurality of amorphous core receiver antennas adapted for installation within a region across at least a portion of the wide interrogation zone, wherein an output of each of said plurality of amorphous core receiver antennas being connectable to a receiver for detection of a response signal from an electronic article surveillance tag disposed in the wide interrogation zone, said response signal responsive to said interrogation signal, wherein said plurality of amorphous core receiver antennas comprises plurality of orthogonal pairs of amorphous core receiver antennas.