Resonator and high-frequency filter

Details Resonator and high-frequency filter Resonator and high-frequency filter

2005-08-23

2005-08-23

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S219100

Reexamination Certificate

active

06933811

ABSTRACT:
The resonator of the present invention includes a cylindrical dielectric and a conductor film covering the surface of the dielectric in close contact therewith. The conductor film is constructed of a cylindrical portion and two flat portions, and is formed by subjecting the surface of the dielectric to metallization or the like. With the conductor film formed in close contact with the dielectric, deterioration of the Q value and the like caused by instability of connection at the corners can be suppressed even when a radio frequency induced current flows from the cylindrical portion over the two flat portions.

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Notice of Reasons of Rejection for Patent Application No. 2001-176674 and English Translation; Mailed Sep. 24, 2003.

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