Patent ID: 6476689
Filing Date: 2002-11-05
Classification: H03H

Abstract:
An LC filter comprising:a magnetic body; at least two coils including a metallic plate having a spiral shape, said at least two coils connected in series so as to generate a mutual inductance therebetween, and said at least two coils being disposed in said magnetic body; a capacitor electrode plate which is included within the shape of said at least two coils in the axial direction thereof such that said capacitor electrode plate does not interfere with the magnetic fluxes generated by said at least two coils, said capacitor electrode plate being disposed in the vicinity of the connection point of said at least two coils in said magnetic body such that at least a portion of said capacitor electrode plate is opposed to a portion of said at least two coils; and a grounding terminal integrally provided with the capacitor electrode plate, wherein said grounding terminal extends from said capacitor electrode plate to a bottom surface of the magnetic body.