High-frequency circuit board unit, high frequency module...

Details High-frequency circuit board unit, high frequency module... High-frequency circuit board unit, high frequency module...

2005-01-25

2005-01-25

Jones, Stephen E. (Department: 2817)

Wave transmission lines and networks

Long line elements and components

Strip type

C333S204000, C257S728000

Reexamination Certificate

active

06847275

ABSTRACT:
A ground electrode and a terminal electrode are formed on a first main surface of dielectric substrate forming a circuit board. Wiring electrodes are formed on a second main surface of the dielectric substrate. A semiconductor device and a filter are mounted on the wiring electrodes. A strip line electrode of the filter is connected to the ground electrode of the circuit board for conducting direct current, via a through-hole provided in the filter, a ground electrode of the filter, the wiring electrode, and a through-hole provided in the circuit board. With this arrangement, the terminal electrode is connected to a high-frequency signal terminal of the semiconductor device via the filter.

REFERENCES:
patent: 5510758 (1996-04-01), Fujita et al.
patent: 6043727 (2000-03-01), Warneke et al.
patent: 6359536 (2002-03-01), Sakamoto et al.
patent: 6-236937 (1994-08-01), None
patent: 07074285 (1995-03-01), None
European Search Report dated May 30, 2002.
Japanese Office Action issued Oct. 12, 2004 (w/ English translation of relevant portions).

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