LC filter device having magnetic resin encapsulating material

Details LC filter device having magnetic resin encapsulating material LC filter device having magnetic resin encapsulating material

1988-07-21

1991-07-23

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

336200, H03H 7075, H05K 116

Patent

active

050347101

ABSTRACT:
An LC filter device includes a dielectric substrate having opposing sets of coil electrode patterns and capacitor electrode patterns. Each set of coil electrode patterns forms an inductive element, and each set of capacitor electrode patterns forms a capacitive element. The inductive and capacitive elements are interconnected to form an LC circuit configuration. The dielectric substrate is encapsulated by a resin coating. The resin coating includes a magnetic material, such as a high frequency ferrite powder, to increase the inductance of the LC filter and to reduce the stray capacitance of the LC filter.

REFERENCES:
patent: 4314213 (1982-02-01), Wakino
patent: 4320364 (1982-03-01), Sakamoto et al.
patent: 4591814 (1986-05-01), Ito et al.
patent: 4758808 (1988-07-01), Sasaki et al.

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