CN218513662U

CN218513662U - High-low ceramic dielectric material combined waveguide filter

Info

Publication number: CN218513662U
Application number: CN202123335630.9U
Authority: CN
Inventors: 吴奎
Original assignee: Suzhou Rf Top Electronic Communications Co ltd
Current assignee: Suzhou Rf Top Electronic Communications Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2023-02-21
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to a high-low ceramic dielectric material combined waveguide filter, which comprises a ceramic dielectric block made of low dielectric constant material, a plurality of debugging holes arranged on the ceramic dielectric block, and ceramic ring resonators respectively arranged in the debugging holes; the ceramic ring resonator is made of a high dielectric constant material; the surfaces of the ceramic dielectric block and the ceramic ring resonator are coated with conductive materials; the utility model discloses a set up the ceramic ring syntonizer of making by high dielectric constant material in the ceramic dielectric block that low dielectric constant material made, can change the QF in single chamber, improve 10% than the QF value of the same volume of the same kind of low dielectric constant material, the high QF value of the difficult realization of ceramic waveguide filter has been solved, the insertion loss difficult problem of little volume, the ability of promoting the filter at the low insertion loss high suppression of same volume, reach low energy consumption effect, the miniaturization and the low loss etc. of developing for communication technology conveniently provide huge breakthrough.

Description

High-low ceramic dielectric material combined waveguide filter

Technical Field

The utility model relates to a ceramic waveguide filter technical field refers in particular to a height ceramic dielectric material combination waveguide filter.

Background

With the rapid development of communication technology, the traditional metal filter cannot meet the requirements of miniaturization and low cost of a 5G communication system, so that a dielectric waveguide filter is derived; the existing dielectric waveguide filter usually uses a material with a single dielectric constant as a substrate, and is difficult to meet the requirement of improving the Q value on the basis of further size reduction, so that the development of the communication technology is limited; although there is a filter capable of improving the Q value on the market, a high Q value miniaturized dielectric waveguide filter as disclosed in the prior art 202010174421.1 includes: a shield case made of a material having a first dielectric constant, a shield cavity being formed in the shield case; and a frequency reducing component which is arranged in the shielding box and is made of a material with a second dielectric constant, wherein the second dielectric constant is larger than the first dielectric constant, but the volume is larger, so that the use is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the deficiency of the prior art and providing a high-low ceramic dielectric material combined waveguide filter.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a high-low ceramic dielectric material combined waveguide filter comprises a ceramic dielectric block made of a low dielectric constant material, a plurality of debugging holes formed in the ceramic dielectric block, and ceramic ring resonators respectively arranged in the debugging holes; the ceramic ring resonator is made of a high dielectric constant material; and the surfaces of the ceramic dielectric block and the ceramic ring resonator are coated with conductive materials.

Preferably, the Qf value of the ceramic ring resonator is 83000-100000.

Preferably, the inner ring diameter of the ceramic ring resonator is one half to two thirds of the outer ring diameter.

Preferably, the height of the ceramic ring resonator is one half to three quarters of the depth of the tuning hole.

Preferably, the Qf value of the ceramic dielectric block is 51000-55000.

Preferably, the conductive material is a metallic silver layer.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model discloses a set up the ceramic ring syntonizer of making by high dielectric constant material in the ceramic dielectric block that the low dielectric constant material was made, can change the QF in single chamber, improve 10% than the QF value of the same volume of the same kind of low dielectric constant material, the high QF value of the difficult realization of ceramic waveguide filter has been solved, the insertion loss difficult problem of little volume, the ability that the promotion filter is high at the low insertion loss of the same volume, reach the low energy consumption effect, the miniaturization and the low-loss etc. that develop for communication technology conveniently provide huge breakthrough.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a partial schematic view of a high-low ceramic dielectric material combined waveguide filter according to the present invention;

fig. 2 is an electrical characteristic curve diagram of the waveguide filter made of the high-low ceramic dielectric material combination according to the present invention.

Wherein: 1. a ceramic dielectric block; 2. debugging the hole; 3. a ceramic ring resonator.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 shows a high-low ceramic dielectric material combined waveguide filter of the present invention, which comprises a ceramic dielectric block 1 made of a low dielectric constant material, a plurality of debugging holes 2 disposed on the ceramic dielectric block 1, and ceramic ring resonators 3 disposed in the debugging holes 2, respectively; the ceramic ring resonator 3 is made of a high dielectric constant material; the surfaces of the ceramic dielectric block 1 and the ceramic ring resonator 3 are coated with metal silver layers; the dielectric constant of the ceramic dielectric block 1 is 40, and the qf value is 53000; the dielectric constant of the ceramic ring resonator 3 is 20,qf is 83000, the diameter of the inner ring of the ceramic ring resonator 3 is two thirds of the diameter of the outer ring, and the height of the ceramic ring resonator 3 is three quarters of the depth of the tuning hole 2.

The utility model discloses a set up the ceramic ring syntonizer 3 of being made by high dielectric constant material in the ceramic medium piece 1 that the low dielectric constant material was made, can change the QF in single chamber, the QF value that is more than the same kind of low dielectric constant material with the volume improves 10%, the high QF value of the difficult realization of ceramic waveguide filter has been solved, the insertion loss difficult problem of little volume, the ability that the promotion filter is high suppression at the low insertion loss of same volume, reach the low energy consumption effect, the miniaturization and the low-loss etc. of developing for communication technology conveniently provide huge breakthrough.

Fig. 2 is an electrical characteristic curve diagram of the high-low ceramic dielectric material combined waveguide filter in this embodiment, which shows that the high-low ceramic dielectric material combined waveguide filter in this embodiment has good isolation characteristics and harmonic characteristics, and is strong in anti-interference capability.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All technical solutions formed by adopting equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. A high-low ceramic dielectric material combined waveguide filter is characterized in that: the ceramic ring resonator comprises a ceramic dielectric block made of a low-dielectric-constant material, a plurality of debugging holes formed in the ceramic dielectric block, and ceramic ring resonators respectively arranged in the debugging holes; the ceramic ring resonator is made of a high dielectric constant material; and the surfaces of the ceramic dielectric block and the ceramic ring resonator are coated with conductive materials.

2. The high-low ceramic dielectric material combination waveguide filter of claim 1, wherein: the Qf value of the ceramic ring resonator is 83000-100000.

3. The high-low ceramic dielectric material combination waveguide filter of claim 2, wherein: the diameter of the inner ring of the ceramic ring resonator is one half to two thirds of the diameter of the outer ring.

4. The high-low ceramic dielectric material combination waveguide filter of claim 3, wherein: the height of the ceramic ring resonator is one half to three quarters of the depth of the tuning hole.

5. The high-low ceramic dielectric material combination waveguide filter of any one of claims 1-4, wherein: the Qf value of the ceramic dielectric block is 51000-55000.

6. The high-low ceramic dielectric material combination waveguide filter of claim 5, wherein: the conductive material is a metal silver layer.