Murata Manufacturing Co., Ltd.

Shinichi Tamura

Atsushi Saitoh

Hiroaki Tanaka

Takatoshi Kato

Taiyo Nishiyama

Hidemasa Iwami

Hideki Imura

A waveguide, a high-frequency circuit, and a high-frequency circuit device having the waveguide are provided. The waveguide includes two conductor plates each of which has a surface having a groove. At least one of the conductor plates has protrusions extending from the surface at both sides of the groove. The two conductor plates are in contact with each other such that the grooves face each other. Screws disposed between the protrusions and bumps, which are formed outside the protrusions on the conductor plate, fasten the conductor plates with a predetermined pressure.

Waveguide, high-frequency circuit, and high-frequency circuit device

A dielectric strip is located in a space formed by facing grooves in two conductors. A corner of the groove bottom surface Gb has a sectionally substantial arc form. A groove side surface Gs is tapered such that a gap can be provided between the groove side surface Gs and the side surface of the dielectric strip.

Dielectric line, having a dielectric strip fitted in a groove between two contacting conductors

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Moriyama, Japan

Shinichi Tamura