Resonant marker for use with radio frequency electronic article

Details Resonant marker for use with radio frequency electronic article Resonant marker for use with radio frequency electronic article

1986-09-26

1988-09-27

Sikes, William L.

Communications: radio wave antennas

Antennas

Spiral or helical type

340572, H01Q 136

Patent

active

047745215

ABSTRACT:
A resonant marker for use with an RF electronic article surveillance system, said marker having a resonant circuit combining a flat coil with a condenser, adapted to be mounted on an article so as to be located by a goods monitoring apparatus by radio waves, characterized by setting a portion of said coil almost perpendicularly to the plane including the remainder of the coil.

REFERENCES:
patent: 4509039 (1985-04-01), Dowdle

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