Dielectric resonator, assembly method therefor, and dielectric filter
A dielectric resonator includes: two dielectric resonant cylinders and a metal cavity, wherein the dielectric resonant cylinders are located within the metal cavity; and it also includes: a fastener and a connector, wherein bottoms of the dielectric resonant cylinders are connected via the connector to form a U-shaped structure, and the connector is fixed on the metal cavity via the fastener. With the dielectric resonator of the embodiments of the present invention, a good close contact between the dielectric resonant cylinders and the metal cavity can be guaranteed, thereby improving the resonant performance of the dielectric resonator.
1. A dielectric resonator, comprising: two dielectric resonant cylinders and a metal cavity, wherein the two dielectric resonant cylinders are located within the metal cavity; and further comprising:
a fastener and a connector, wherein bottoms of the dielectric resonant cylinders are connected via the connector to form a U-shaped structure, and the connector is fixed on the bottom of the metal cavity via the fastener.
2. The dielectric resonator according to claim 1 , wherein, the fastener is a metal fastener, and a first metal layer is plated or a conductive gasket is set on a surface of the connector of the U-shaped structure and is in contact with the metal fastener.
3. The dielectric resonator according to claim 1 , wherein, the fastener is a non-metal fastener, and a second metal layer is plated on a surface of the connector of the U-shaped structure and is in contact with the non-metal fastener.
4. The dielectric resonator according to claim 1 , wherein, the U-shaped structure is a unibody structure or a non-unibody structure.
5. The dielectric resonator according to claim 1 , wherein, the fastener is a fastening screw, and the connector is a connecting piece.
6. A dielectric filter, formed by connecting at least two dielectric resonators according to claim 1 .
7. The dielectric resonator according to claim 2 , wherein, the U-shaped structure is a unibody structure or a non-unibody structure.
8. The dielectric resonator according to claim 3 , wherein, the U-shaped structure is a unibody structure or a non-unibody structure.
9. The dielectric resonator according to claim 2 , wherein, the fastener is a fastening screw, and the connector is a connecting piece.
10. The dielectric resonator according to claim 3 , wherein, the fastener is a fastening screw, and the connector is a connecting piece.
11. An assembly method for a dielectric resonator, comprising:
connecting bottoms of dielectric resonant cylinders via a connector to form a U-shaped structure; and
fixing the connector on the bottom of a metal cavity via a fastener.
12. The method according to claim 11 , wherein, the fastener is a metal fastener, and a first metal layer is plated or a conductive gasket is set on a surface of the connector of the U-shaped structure and is in contact with the metal fastener.
13. The method according to claim 11 , wherein, the fastener is a non-metal fastener, and a second metal layer is plated on a surface of the connector of the U-shaped structure and is in contact with the non-metal fastener.
14. The method according to claim 11 , wherein, the U-shaped structure is set as a unibody structure or a non-unibody structure.
15. The method according to claim 12 , wherein, the U-shaped structure is set as a unibody structure or a non-unibody structure.
16. The method according to claim 13 , wherein, the U-shaped structure is set as a unibody structure or a non-unibody structure.