Noise filter

Details Noise filter Noise filter

2006-09-26

2006-09-26

Ham, Seungsook (Department: 2817)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S185000

Reexamination Certificate

active

07113057

ABSTRACT:
A noise filter includes: a dielectric element formed of a stack of dielectric layers; a pair of first terminal electrodes disposed on one face of the dielectric element and each connectable to an external circuit; a second terminal electrode disposed on the face on which the pair of first terminal electrodes exist, and connectable to the external circuit; a pair of first internal conductors having bent portions respectively and disposed in the dielectric element with both ends thereof being led out outside the dielectric element and with the ends thereof on one side being individually connected to the pair of first terminal electrodes; a coupling electrode disposed on a face of the dielectric element and connecting the other ends of the pair of first internal conductors to each other on an outer face of the dielectric element; and a second internal conductor which is arranged at least between the pair of first internal conductors in the dielectric element, being separated from the pair of first internal conductors by dielectric layers, and whose one end is led out to the face of the dielectric element to be connected to the second terminal electrode. Therefore, a noise filter with an improved noise filtering effect can be obtained.

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patent: 6292351 (2001-09-01), Ahiko et al.
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patent: 2657953 (1997-06-01), None

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