CN220291052U

CN220291052U - Slotted dielectric filter

Info

Publication number: CN220291052U
Application number: CN202322019907.XU
Authority: CN
Inventors: 沈逸城; 高飞; 陈卫平
Original assignee: Zhejiang Jiakang Electronics Co ltd
Current assignee: Zhejiang Jiakang Electronics Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-02
Anticipated expiration: 2033-07-31

Abstract

The utility model provides a slotted dielectric filter, which comprises a dielectric filter, wherein a plurality of resonant cavities are formed in the dielectric filter, any resonant cavity penetrates through the dielectric filter, a plurality of transverse slots are formed in one end of the dielectric filter, any transverse slot is communicated with two resonant cavities, a plurality of vertical slots are formed in the other end of the dielectric filter, and the vertical slots are arranged between gaps of the resonant cavities at adjacent positions; the length of the transverse groove is more than twice the diameters of the two resonant cavities. The utility model can effectively reduce the loss of the transmission line filtering through the transverse grooves and the vertical grooves, thereby improving the suppression degree of the dielectric filter in the far-end signal processing and improving the signal quality; compared with the traditional complex structure, the structure of the scheme is simple, the number and complexity of components are reduced, the production and manufacturing cost is reduced, and the production efficiency is improved.

Description

Slotted dielectric filter

Technical Field

The utility model belongs to the technical field of dielectric filters, and particularly relates to a slotted dielectric filter.

Background

In the field of communication device assembly technology, filters are a very important element; the filter can remove unnecessary frequency components in the electronic circuit so as to ensure the quality of the signal; in the field of signal processing, filters are also widely used in the fields of audio processing, image processing, and the like.

There are some solutions of dielectric filters in the prior art, which use different structures and materials to implement the filtering function, wherein common dielectric filter structures include multilayer ceramic filters, resonator filters, microwave line filters, etc., which can effectively suppress harmonic components in the signal and improve the quality of the signal.

The existing dielectric filter structure can effectively inhibit harmonic components in signals, but in the far-end signal processing, the inhibiting effect is often limited to a certain extent, because the dielectric filter can introduce unnecessary noise and distortion due to the loss of a transmission line in the process of transmitting signals, thereby influencing the quality of the signals.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a slotted dielectric filter which reduces the filtering loss of a transmission line and improves the signal quality.

The technical scheme adopted for solving the technical problems is as follows: the filter comprises a dielectric filter, wherein a plurality of resonant cavities are formed in the dielectric filter, any resonant cavity penetrates through the dielectric filter, a plurality of transverse grooves are formed in one end of the dielectric filter, and a plurality of vertical grooves are formed in the other end of the dielectric filter; any transverse groove is communicated with the two resonant cavities; the vertical grooves are arranged between gaps of the resonant cavities at adjacent positions; the length of the transverse groove is more than twice the diameters of the two resonant cavities.

Further provided is that: the length of the transverse groove is 3.4mm.

Further provided is that: the width of the transverse groove is 1.1mm.

Further provided is that: the dielectric filter is provided with 4 resonant cavities, and one end of the dielectric filter is provided with two transverse grooves; three vertical grooves are formed in the other end of the dielectric filter.

Further provided is that: the width of the transverse groove is larger than or equal to the diameter of the resonant cavity.

Further provided is that: the vertical groove is positioned at the middle position between the resonant cavities at the adjacent positions.

Further provided is that: the resonant cavities are arranged in pairs, and the number of the resonant cavities is twice that of the transverse grooves.

The beneficial effects of the utility model are as follows: the utility model can effectively reduce the loss of the transmission line filtering through the transverse grooves and the vertical grooves, thereby improving the suppression degree of the dielectric filter in the far-end signal processing and improving the signal quality; compared with the traditional complex structure, the structure of the scheme is simple, the number and complexity of components are reduced, the production and manufacturing cost is reduced, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic view of an angle structure of the present utility model;

FIG. 2 is a schematic view of another angle structure of the present utility model;

FIG. 3 is a top view of the present utility model;

FIG. 4 is a bottom view of the present utility model;

FIG. 5 is a side view of the present utility model;

FIG. 6 is a schematic perspective view of the present utility model;

fig. 7 is an electrical performance diagram of a dielectric filter of the present utility model.

In the figure: 1-dielectric filter, 2-resonant cavity, 3-horizontal slot, 4-vertical slot.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

embodiment one: as shown in fig. 1-7: the embodiment comprises a dielectric filter 1, wherein a plurality of resonant cavities 2 are formed in the dielectric filter 1, a plurality of transverse grooves 3 are formed in one end of the dielectric filter 1, the resonant cavities 2 are arranged in pairs, and the number of the resonant cavities 2 is twice that of the transverse grooves 3; any transverse groove 3 is communicated with two resonant cavities 2, the width of the transverse groove 3 is larger than or equal to the diameter of the resonant cavities 2, the width of the transverse groove 3 is 1.1mm, the length of the transverse groove 3 is larger than or equal to twice the diameter of the two resonant cavities 2, the length of the transverse groove 3 is 3.4mm, two ends of the transverse groove 3 are semicircular or polygonal, a plurality of vertical grooves 4 are formed in the other end of the dielectric filter 1, the number of the vertical grooves 4 is one less than that of the resonant cavities 2, the vertical grooves 4 are located in the middle positions among the resonant cavities 2 at adjacent positions, the vertical grooves 4 penetrate through the dielectric filter 1, the resonant cavities 2 are vertically arranged with the vertical grooves 4, and the arrangement of the transverse grooves 3 and the vertical grooves 4 can effectively reduce the loss of transmission line filtering, so that the suppression degree of the dielectric filter in signal processing at the far end is improved, and the quality of signals is improved.

In addition, any resonant cavity 2 penetrates through the dielectric filter 1, and the dielectric filter 1 is communicated with the transverse groove 3; the utility model adopts the structure and the size of the optimally designed dielectric filter, reduces the manufacturing cost, improves the production efficiency and further improves the performance and the expandability of the filter.

Embodiment two: as shown in fig. 1-7: the embodiment comprises a dielectric filter 1, 4 resonant cavities 2 are formed in the dielectric filter 1, two transverse grooves 3 are formed in one end of the dielectric filter 1, any transverse groove 3 is communicated with the two resonant cavities 2, the width of each transverse groove 3 is larger than or equal to the diameter of each resonant cavity 2, the diameter of each resonant cavity 2 is 1.1mm, the length of each transverse groove 3 is larger than twice the diameter of each resonant cavity 2, the length of each transverse groove 3 is 3.4mm, two ends of each transverse groove 3 are semicircular or polygonal, three vertical grooves 4 are formed in the other end of the dielectric filter 1, the vertical grooves 4 are located in the middle positions among the resonant cavities 2 in adjacent positions, the vertical grooves 4 penetrate the dielectric filter 1, the resonant cavities 2 are perpendicular to the vertical grooves, and the transverse grooves 3 and the vertical grooves 4 are arranged, so that the loss of transmission line filtering can be effectively reduced, the suppression degree of the dielectric filter in signal processing at the far end is improved, and the quality of signals is improved.

In addition, any of the resonators 2 penetrates the dielectric filter 1, and the dielectric filter 1 communicates with the transverse grooves 3, the resonators 2 are arranged in pairs, and the number of the resonators 2 is twice that of the transverse grooves 3.

As can be seen from the electrical performance diagram of fig. 7: through the special grooving design, the harmonic wave at the far end is well restrained.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fluting dielectric filter, includes dielectric filter (1) to and offer a plurality of resonant cavities (2) on dielectric filter (1), its characterized in that: any resonant cavity (2) penetrates through the dielectric filter (1), a plurality of transverse grooves (3) are formed in one end of the dielectric filter (1), and any transverse groove (3) is communicated with two resonant cavities (2); a plurality of vertical grooves (4) are formed in the other end of the dielectric filter (1), and the vertical grooves (4) are arranged between gaps of the resonant cavities (2) at adjacent positions; the length of the transverse groove (3) is more than twice the diameter of the two resonant cavities (2).

2. A slotted dielectric filter in accordance with claim 1, wherein: the length of the transverse groove (3) is 3.4mm.

3. A slotted dielectric filter in accordance with claim 1, wherein: the width of the transverse groove (3) is 1.1mm.

4. A slotted dielectric filter in accordance with claim 1, wherein: 4 resonant cavities (2) are formed in the dielectric filter (1), and two transverse grooves (3) are formed in one end of the dielectric filter (1); three vertical grooves (4) are formed in the other end of the dielectric filter (1).

5. A slotted dielectric filter as defined in claim 1 or 3, characterized in that: the width of the transverse groove (3) is larger than or equal to the diameter of the resonant cavity (2).

6. A slotted dielectric filter in accordance with claim 1, wherein: the vertical grooves (4) are positioned at the middle positions among the adjacent resonant cavities (2).

7. A slotted dielectric filter in accordance with claim 5, wherein: the resonant cavities (2) are arranged in pairs, and the number of the resonant cavities (2) is twice that of the transverse grooves (3).