| 摘要 |
PURPOSE: To provide an LC noise filter capable of easily and highly accurately setting a desired cutoff frequency. CONSTITUTION: A distance d in a laminating direction between the coil conductor pattern 2 of an inductor L and the capacitor electrode pattern 17 of a capacitor C1 adjacent in the laminating direction and the distance d in the laminating direction between the coil conductor pattern 6 of the inductor L and the capacitor electrode pattern 19 of the capacitor C2 are set appropriately. The distance d is selected within the range of 80 μm to 300 μm for instance, and the inductance value of the inductor L is finely adjusted. In is preferable to set the dielectric constant ε of the insulation layer of a laminate 40 within the range of 50 to 100. The distance b in the laminating direction mutually between the adjacent coil conductor patterns 2 to 6 is set to be equal to or more than 2.5 fold of the distance (a) of the laminating direction, mutually between the adjacent capacitor electrode patterns 16 to 19.
|
