Resonant frequency characteristic tag and method of manufacturin

Details Resonant frequency characteristic tag and method of manufacturin Resonant frequency characteristic tag and method of manufacturin

1989-04-27

1991-01-15

Ryan, Patrick J.

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Halogen containing compound

428 76, 428137, 428209, 428447, 428448, 428457, 428480, 428520, 428901, 343895, 540572, B32B 300

Patent

active

049852884

ABSTRACT:
A resonant frequency characteristic tag has a thin dielectric film made of a polymer such as polyethylene, and a pair of resonant frequency characteristic circuits each formed on each side of the thin dielectric film, made of a metal foil and having a particular resonant frequency, the two resonant frequency characteristic circuits have terminal sections short-circuited to one another. A release paper is applied by a pressure sensitive adhesive to the surface of one of the two resonant frequency characteristic circuits, and a through hole or opening(s) with a diameter in a range between 0.5 and 3 mm is formed at an electrode plate in a capacitor section of the circuit. The distance between the two electrode plates is adjusted to a predetermined dimension by heating and pressing a portion at the periphery of the through hole or opening(s) with a suitable tool.

REFERENCES:
patent: 4498076 (1985-02-01), Lichtblau
patent: 4658264 (1987-04-01), Baker

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