EMI suppressor having bandpass filtering function

Details EMI suppressor having bandpass filtering function EMI suppressor having bandpass filtering function

2009-11-24

2011-12-20

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S238000, C333S012000

Reexamination Certificate

active

08081051

ABSTRACT:
An electromagnetic interference (EMI) suppressor having a bandpass filtering function is provided. The EMI suppressor is disposed on a substrate, and includes a signal line, a ground line, an open-circuit line, a first line group, and a second line group. The signal line has an input terminal and an output terminal for feeding in and feeding out electromagnetic wave signals respectively. One terminal of the ground line is connected to the signal line and the other terminal is a ground terminal. One terminal of the open-circuit line is connected to the signal line and the other terminal is an open-circuit terminal. The first line group is formed by a first open-circuit line and a second open-circuit line, and is connected to the signal line. The second line group is formed by a third open-circuit line and a fourth open-circuit line, and is connected to the signal line.

REFERENCES:
patent: 3343069 (1967-09-01), Tsuda
patent: 3875538 (1975-04-01), Minet et al.
patent: 7057481 (2006-06-01), Yeh

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