LC noise filter
First Claim
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1. An LC noise filter comprising:
- a dielectric material;
a plurality of spiral grooves provided in at least one surface of said dielectric material in such a manner as to be concentrically adjacent to each other; and
a plurality of inductor conductors at least one of which is provided in each of said grooves;
each of said inductor conductors forming a capacitor with the inductor conductor adjacent thereto with a wall body of said dielectric material therebetween.
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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.
77 Citations
23 Claims
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1. An LC noise filter comprising:
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a dielectric material; a plurality of spiral grooves provided in at least one surface of said dielectric material in such a manner as to be concentrically adjacent to each other; and a plurality of inductor conductors at least one of which is provided in each of said grooves; each of said inductor conductors forming a capacitor with the inductor conductor adjacent thereto with a wall body of said dielectric material therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A multi-channel noise filter comprising:
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a substrate made of a dielectric material; and a plurality of LC noise filters arranged adjacently to each other on said substrate; each of said LC noise filters including; a plurality of spiral grooves provided in at least one surface of said substrate in such a manner as to be concentrically adjacent to each other; and a plurality of inductor conductors at least one of which is provided in each of said grooves; each of said inductor conductors forming a capacitor with the inductor conductor adjacent thereto with a wall body of said dielectric material therebetween.
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11. An LC noise filter comprising:
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a dielectric material; a spiral groove provided in at least one surface of said dielectric material; and at least one ground groove provided in at least one surface of said dielectric material in such a manner as to be adjacent to a part of said spiral groove; an inductor conductor provided in said spiral groove; a grounding block conductor provided in said ground groove; said inductor conductor forming a capacitor with the grounding block conductor adjacent thereto with a wall body of said dielectric material therebetween. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A multi-channel noise filter comprising:
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a substrate made of a dielectric material; and a plurality of LC noise filters arranged adjacently to each other on said substrate; each of said LC noise filters including; a spiral groove provided in at least one surface of said substrate; at least one ground groove provided in at least one surface of said dielectric in such a manner as to be adjacent to a part of said spiral groove; an inductor conductor provided in said spiral groove; and a grounding block conductor provided in said ground groove; said inductor conductor forming a capacitor with a grounding block conductor adjacent thereto with a wall body of said dielectric material therebetween.
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23. An Lc noise filter comprising:
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an insulating substrate; a spiral inductor conductor provided on at least one surface of said substrate; and at least one grounding block conductor provided on at least one surface of said substrate in such a manner as to be adjacent to and on a same surface as a part of said inductor conductor; said inductor conductor forming a capacitor with the grounding block conductor adjacent thereto.
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Specification