Double-tuned circuit

Details Double-tuned circuit Double-tuned circuit

2011-01-25

2011-01-25

Mai, Anh T (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

C336S223000, C336S232000

Reexamination Certificate

active

07876190

ABSTRACT:
A double-tuned circuit includes a primary side tuned circuit having a first air-cored coil and a secondary side tuned circuit having a second air-cored coil. The first air-cored coil and the second air-cored coil are opposed to each other so that one opening end of the first air-cored coil and one opening end of the second air-cored coil are capable of being coupled to each other on a coil mounting surface. The coil mounting surface is provided with a first conductive pattern formed adjacent to the first air-cored coil in a direction perpendicular to an arrangement direction of the first and second air-cored coils, and both ends of first conductive pattern are connected to a ground.

REFERENCES:
patent: 7710232 (2010-05-01), Stalford et al.
patent: 2003/0034868 (2003-02-01), Osada
patent: 2009/0289871 (2009-11-01), Lin et al.
patent: 08-070236 (1996-03-01), None
patent: 2001076936 (2001-03-01), None
patent: 2003-110408 (2003-04-01), None

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