JPS6110328Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support structure for a dielectric resonator.

Although there are various types of dielectric resonators, a coaxial dielectric resonator will be explained below as an example. in general,
The outer metal film of the coaxial dielectric resonator is at ground potential, and needs to be at the same potential as the case that houses it. Also, when fixing this coaxial dielectric resonator to a support metal fitting, it is necessary to connect it with a sufficiently low electrical contact resistance to reduce loss.
It is also necessary to mechanically fix it sufficiently strongly so that the resonant frequency of the resonator does not change. Conventionally,
As shown in the perspective view of FIG. 1, the coaxial dielectric resonator 1 is fixed to the support fitting 3 by mechanically tightening it with a band 2, or as shown in the cross-sectional view of FIG.
A method of gluing and fixing was used. However, these methods not only lack mechanical strength but also fail to provide sufficient electrical contact.

The purpose of this invention is to improve these drawbacks by using the metal film on the outer surface of the coaxial type structure and directly soldering it to the support fitting, thereby making it mechanically strong enough and electrically sufficient. An object of the present invention is to provide a support structure for a dielectric resonator that can maintain good contact.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 3 is a perspective view of an embodiment of the present invention, and FIG. 4 is a sectional view of FIG. 3. In these figures, a coaxial dielectric resonator 1 has a metal film 5 covering its outer surface connected directly to a recess 6 of a flat plate support 3 by solder 7. This recess 6 is provided for the purpose of positioning during soldering and increasing the soldering area. Further, the support fitting 3 is provided with a mounting hole 8 for receiving it in a chassis or a printed board.

As explained above, this dielectric resonator is partially directly soldered to the recessed part of the support fitting 3, so it is not only firmly fixed mechanically but also has sufficient electrical contact. Furthermore, there is no peeling of the metal film due to strain force caused by the difference in coefficient of linear expansion between the resonator, the support fitting, and the metal film. Therefore, it is possible to provide a resonator in which the oscillator has a high Q required for a wave generator, has little secular change, and has little distortion caused by temperature stress.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional support structure, FIG. 2 is another sectional view of the conventional support structure, FIG. 3 is a perspective view of an embodiment of the present invention, and FIG. 4 is a sectional view of FIG. 3. be. In the figure, 1... coaxial dielectric resonator, 2...
... band, 3 ... support metal fitting, 4 ... conductive adhesive, 5 ... metal film, 6 ... recess, 7 ... solder,
8...Mounting hole.

Claims (1)

[Scope of utility model registration request] A dielectric resonator, which is composed of a dielectric part and a conductor part covering the outer surface thereof and resonates at a predetermined frequency, is constructed by directly soldering the resonator to a recess of a conductive flat plate member to which the resonator is fixed. Support structure for dielectric resonators.