Low-pass filter capable of preventing unnecessary...

Details Low-pass filter capable of preventing unnecessary... Low-pass filter capable of preventing unnecessary...

2006-09-15

2008-09-09

Le, Don P (Department: 2819)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S185000

Reexamination Certificate

active

07423500

ABSTRACT:
A plurality of conductive patterns constituting first, second, and third inductors are formed in a multi-layer wiring board. A fifth dielectric layer is disposed between second to fourth dielectric layers having the first inductor and a seventh dielectric layer having the second inductor. First and second electrode layers are disposed facing each other across the fifth dielectric layer so as to constitute a capacitor. The capacitor is disposed between the first and third inductors and the second inductor. The first electrode layer, i.e., one electrode of the capacitor, is a ground layer.

REFERENCES:
patent: 5499000 (1996-03-01), Morikawa et al.
patent: 6483400 (2002-11-01), Phillips, Jr.
patent: 7091800 (2006-08-01), Yamamoto et al.
patent: 2005/0012567 (2005-01-01), Liu
patent: 2005/0219011 (2005-10-01), Lin et al.
patent: 2005/0231304 (2005-10-01), White et al.
patent: 2006/0038635 (2006-02-01), Richiuso et al.

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