Filter device, multiband filter, duplexer and communications...

Details Filter device, multiband filter, duplexer and communications... Filter device, multiband filter, duplexer and communications...

2006-07-13

2009-10-13

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S133000

Reexamination Certificate

active

07602264

ABSTRACT:
A filter device includes a circuit board having a pattern electrode; a substrate having a filter to which a signal line for inputting or outputting a signal and a reference potential line having a reference potential are connected, and a pad electrode connected to the filter, the substrate being mounted on the circuit board such that the pad electrode and the pattern electrode face each other; and a connection part formed of the pad electrode, the pattern electrode, and a conductive member formed between the pattern electrode and the pad electrode to electrically connect the pattern electrode to the pad electrode, wherein the connection part is arranged to connect the signal line to the reference potential line.

REFERENCES:
patent: 7230512 (2007-06-01), Carpenter et al.
patent: 2005/0146397 (2005-07-01), Koga et al.
patent: 04-293310 (1992-10-01), None

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