Semi-coaxial cavity resonator, filter using the same, and communication apparatus using the same

A coaxial cavity and resonator technology, applied in resonators, waveguide devices, circuits, etc., can solve the problems of increased manufacturing costs, weight, and temperature waveform confusion, and achieve the effect of increased length
CN1965440AInactive Publication Date: 2007-05-16MURATA MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MURATA MFG CO LTD
Publication Date
2007-05-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A cavity reentrant cylindrical resonator formed by threading an inner conductor to an outer conductor, wherein an area allowing a screw (2) to deform therein is formed by forming, in a female screw hole inside the inner conductor (1), an internal cavity (5) not threaded with the screw (2) from the seat surface (4) of the inner conductor. Accordingly, the perpendicularity of the screw (2) to the seat surface (4) and the deviation of the perpendicularity of the female screw hole inside the inner conductor (1) can be absorbed by the deformation of the screw (2) to uniformly and securely bring the seat surface (4) of the inner conductor into contact with the bottom face (3a) of the outer conductor (3). As a result, the occurrence of an intermodulation distortion can be suppressed.
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Description

Technical field:

[0001] The present invention relates to a semi-coaxial cavity resonator, and a filter and communication equipment using the semi-coaxial cavity resonator. Background technique:

[0002] At present, the semi-coaxial cavity resonator used by people has a shell, and the outer conductor and the inner conductor in the shell are formed as a whole with aluminum or aluminum alloy. This semi-coaxial cavity resonator is also used in filters superior. The conductor can be formed by cutting or die casting, and a panel with adjusting bolts is bolted to it to form a closed space inside, so that it can be used as a resonator or filter. The material of the resonator and filter is not limited to aluminum or aluminum alloy, especially when it is formed by mechanical cutting, other different materials can be used, such as: invar, copper, copper alloy or iron, etc. Usually, When using these materials, surface treatment such as electroplating is carried out after processing. ...

Claims

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