LC noise filter

Details LC noise filter LC noise filter

1990-03-22

1992-05-05

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333185, 336200, H03H 701, H03H 709

Patent

active

051111691

ABSTRACT:
An LC noise filter comprising a dielectric substrate, a plurality of concentrically adjacent spiral grooves provided in at least one surface of the substrate, and a plurality of inductor conductors provided in the respective spiral grooves. The inductor conductors are opposed to each other with the wall body between the grooves therebetween so as not to obstruct the magnetic path of the magnetic flux of the opposite inductor conductor. That is, a distribution constant LC noise filter having a sufficient capacitance and excellent electric characteristics without lowering the inductance of each inductor conductor is disclosed.

REFERENCES:
patent: 1563731 (1925-12-01), Ducas
patent: 2583854 (1952-01-01), Kehbel
patent: 2584592 (1952-02-01), Kehbel
patent: 4081770 (1978-03-01), Mayer
patent: 4253079 (1981-02-01), Brosh
patent: 4313151 (1982-01-01), Vranken
patent: 4376274 (1983-03-01), Smart
patent: 4494100 (1985-01-01), Stengel et al.
patent: 4614925 (1986-09-01), Kane
patent: 4728911 (1988-03-01), Sjogren
patent: 4843404 (1989-06-01), Benge et al.

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