US 2017/0365904 A1 · DIELECTRIC RESONATOR, DIELECTRIC FILTER, AND FABRICATION METHOD

Abstract

The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.

Claims20

Dependent claims

A method for fabricating a dielectric resonator, comprising:

forming a blind hole in a solid dielectric that forms the dielectric resonator;
performing overall metallization on the solid dielectric configured with the blind hole, to form a metallized layer of the dielectric resonator;
and
removing a part of the metallized layer from the metallized layer on surface of the blind hole, to form a demetallized notch.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/691,246Filed 30 Aug 2017

Priority

16 Apr 2013

Published

21 Dec 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01P 1/2056
Comb or interdigital filters; Cascaded coaxial cavities: comb filters or interdigital filters with metallised resonator holes in a dielectric block
H01P 7/06
Resonators of the waveguide type: cavity resonators
H01P 1/2002
Frequency-selective devices, e.g. filters: dielectric waveguide filters
H01P 1/2084
Cascaded cavities; Cascaded resonators inside a hollow waveguide structure: with dielectric resonators

Dielectric resonator, dielectric filter, and fabrication method

Life of this patent

Dielectric resonator, dielectric filter, and fabrication method

Life of this patent

Abstract

Claims20