High-frequency circuit device and high-frequency circuit module

Wave transmission lines and networks – Resonators – Dielectric type

Reexamination Certificate

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Details

C333S134000

Reexamination Certificate

active

07057483

ABSTRACT:
A high-frequency circuit device includes a dielectric member1, a shielding conductor2surrounding the dielectric member1, a support member3for fixing and supporting the dielectric member1, and a pair of transmission lines4each of which is formed of a microstrip-line. Each of the transmission lines includes a substrate6formed of a dielectric material, a strip conductor5, and an earth conductor layer9. An end portion of the strip conductor5faces part of the dielectric member1and functions as a coupling probe for input/output coupling. Each of the transmission lines4is formed of a strip line, a mictostrip line, a coplanar line or the like, and has low-loss when connected to a circuit board.

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Microfilm of the specification and drawings annexed to the request of Japanese Utility model Application No. 111546/1988 (Laid-open No. 32213/1990) (Murata Mfg. Co., Ltd.), Feb. 28, 1990, p. 9, line 6 to p. 10, line 10; Fig. 6 (Family: none).
Microfilm of the specification and drawings annexed to the request of Japanese Utility model Application No. 49318/1990 (Laid-open No. 8501/1992) (Murata Mfg. Co., Ltd.), Jan., 27, 1992, p. 1., line 17 to p. 2, line 8; Figs. 5 to 6 (Family: none).
Microfilm of the specification and drawings annexed to the request of Japanese Utility model Application No. 53754/1987 (Laid-open No. 159901/1988) (Mitsubishi Electric Corp.), Oct., 19, 1988, p. 4, line 12 to p. 5, line 8; Fig. 1 (Family: none).

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