H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
351/11, 351/47,
H01Q 7/04 (2006.01) G08B 13/24 (2006.01)
Patent
CA 1219948
Abstract of Disclosure A shielded, closely spaced transmit-receiver system for use in an electronic article surveillance system is disclosed wherein at least one of the antennas is provided with at least two twisted loops lying in a common plane each loop being twisted 180° to be in phase opposition with the adjacent loop and wherein both antennas are substantially enclosed by a conductive shield having a discontinuity in an outer portion enclosing each of the twisted loops.
455510
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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