Layered low-pass filter having a conducting portion that...

Details Layered low-pass filter having a conducting portion that... Layered low-pass filter having a conducting portion that...

2011-08-16

2011-08-16

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S167000, C333S177000, C333S204000

Reexamination Certificate

active

07999634

ABSTRACT:
A layered low-pass filter includes: a layered substrate; an input terminal, an output terminal and a grounding terminal each disposed on a periphery of the layered substrate; first and second inductors connected in series and provided between the input terminal and the output terminal; first to fifth capacitors formed within the layered substrate; a grounding conductor layer provided within the layered substrate; and a conducting portion formed within the layered substrate. The conducting portion includes a conductor layer connected to the grounding terminal, and a conducting path formed of a plurality of through holes. The conducting portion connects the grounding conductor layer to the grounding terminal via a path longer than the shortest distance between the grounding conductor layer and the grounding terminal.

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