CN112436260A

CN112436260A - Novel TE mode dielectric resonator

Info

Publication number: CN112436260A
Application number: CN202011341805.4A
Authority: CN
Inventors: 朱琦; 张远飞
Original assignee: Suzhou Canqin Communication Technology Co ltd
Current assignee: Suzhou Canqin Communication Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-03-02

Abstract

The application discloses novel TE mode dielectric resonator, including casing and the apron of setting at the casing top, the casing is separated into two cavitys through establishing the boss in, be equipped with positive coupling piece on the boss, positive coupling piece includes first section, second section and third section, first section and second section symmetry set up the both sides at the boss, the one end that first section and second section are located the homonymy is connected to the third section, the third section is fixed on the boss, be equipped with the screw thread through-hole on the apron, be equipped with the coupling screw rod in the screw thread through-hole, the one end of coupling screw rod extends to in the casing. This syntonizer replaces traditional coupling line transition piece through positive coupling piece and the boss that increases specific structure, has improved the uniformity and the stability of coupling window greatly, has increased the adjustable screw rod simultaneously for the compensation is because of the coupling variation volume that production equipment tolerance leads to, thereby has realized that production is adjustable, avoids the waste and the unnecessary loss of repeated rework leading to the fact time simultaneously, and product debugging time is shorter, more convenient.

Description

Novel TE mode dielectric resonator

Technical Field

The application relates to the field of attenuators, in particular to a novel TE mode dielectric resonator.

Background

In a TE mode dielectric filter, according to the performance requirement of the filter, a positive zero point is often needed, the energy of the conventional TE mode dielectric resonator is negative coupling, so a special structure is needed to be added to realize the conversion of the positive and negative coupling between the resonators, the conventional design uses a transmission lead to pass through the fully surrounding or semi-surrounding dielectric resonator, the scheme has some disadvantages in the whole debugging, such as dimension error in the whole assembly, or insufficient precision, and rework is needed, the current method is to open a cover plate of the filter, re-correct a coupling sheet, correct the distance between the coupling line and the dielectric resonator, adjust the precision, then mount the filter, mount the cover plate, continue debugging, if the coupling value is not suitable, and continue the work, the method can generate some adverse factors, and the precision is insufficient when the size of the coupling sheet deviates, the debugging difficulty is high, the index debugging is not ideal, the reworking times are more, time and labor are wasted, the size of the coupling piece can be changed in the reworking process, the coupling line can be broken, and the cavity fixing screw can be broken. The phenomena of tooth sliding and cavity scrapping.

Disclosure of Invention

The invention aims to provide a novel TE mode dielectric resonator to overcome the defects in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the embodiment of the application discloses novel TE mode dielectric resonator, its characterized in that: the medium resonator is arranged in each cavity, a medium tuning disc matched with the medium resonator is arranged on the cover plate, a positive coupling block is arranged on the boss and comprises a first section, a second section and a third section, the first section and the second section are symmetrically arranged on two sides of the boss, the third section is connected with one end, located on the same side, of the first section and the second section, the third section is fixed on the boss, a threaded through hole is formed in the cover plate, a coupling screw rod is arranged in the threaded through hole, and one end of the coupling screw rod extends into the shell.

Preferably, in the above-described novel TE mode dielectric resonator, the coupling screw is disposed between the first segment and the second segment.

Preferably, in the above-mentioned novel TE mode dielectric resonator, the first segment and the second segment are both inclined gradually downward toward the end far from the third segment.

Preferably, in the above-mentioned novel TE mode dielectric resonator, the cross section of the positive coupling block is "U" shaped.

Preferably, in the above novel TE mode dielectric resonator, the third section is provided with a screw hole, and the third section is fixedly connected to the boss by a screw penetrating through the screw hole.

Compared with the prior art, the invention has the advantages that:

this syntonizer replaces traditional coupling line transition piece through positive coupling piece and the boss that increases specific structure, has improved the uniformity and the stability of coupling window greatly, has increased the adjustable screw rod simultaneously for the compensation is because of the coupling variation volume that production equipment tolerance leads to, thereby has realized that production is adjustable, avoids the waste and the unnecessary loss of repeated rework leading to the fact time simultaneously, and product debugging time is shorter, more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a novel TE mode dielectric resonator according to an embodiment of the present invention;

fig. 2 is a top sectional view of the novel TE mode dielectric resonator in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-2, the novel TE mode dielectric resonator in this embodiment includes a housing 1 and a cover plate 2 disposed at the top of the housing 1, the housing 1 is separated into two cavities 4 by an internal boss 3, a dielectric resonator 5 is disposed in each cavity 4, a dielectric tuning disk 6 cooperating with the dielectric resonator 5 is disposed on the cover plate 2, a positive coupling block 7 is disposed on the boss 3, the positive coupling block 7 includes a first section 701, a second section 702, and a third section 703, the first section 701 and the second section 702 are symmetrically disposed on two sides of the boss 3, the third section 703 is connected to one end of the first section 701 and the second section 702 on the same side, the third section 703 is fixed on the boss 3, a threaded through hole 201 is disposed on the cover plate 2, a coupling screw 202 is disposed in the threaded through hole 201, and one end of the coupling screw.

Further, the coupling screw 202 is disposed between the first section 701 and the second section 702.

Further, the first section 701 and the second section 702 are both gradually inclined downwards towards one end far away from the third section 703.

Further, the cross section of the positive coupling block 7 is "U" shaped.

Further, a screw hole 704 is formed in the third section 703, and the third section 704 is fixedly connected to the boss 3 through a screw 705 penetrating through the screw hole 704.

In the technical scheme, the resonator replaces a traditional coupling line conversion sheet by the positive coupling block and the boss which are added with a specific structure, the consistency and the stability of a coupling window are greatly improved, and meanwhile, the adjustable screw rod is added for compensating the coupling variable quantity caused by production assembly tolerance, so that the production is adjustable, the waste and unnecessary loss of time caused by repeated reworking are avoided, and the product debugging time is shorter and more convenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.

Claims

1. A novel TE mode dielectric resonator is characterized in that: the medium resonator is arranged in each cavity, a medium tuning disc matched with the medium resonator is arranged on the cover plate, a positive coupling block is arranged on the boss and comprises a first section, a second section and a third section, the first section and the second section are symmetrically arranged on two sides of the boss, the third section is connected with one end, located on the same side, of the first section and the second section, the third section is fixed on the boss, a threaded through hole is formed in the cover plate, a coupling screw rod is arranged in the threaded through hole, and one end of the coupling screw rod extends into the shell.

2. The novel TE mode dielectric resonator according to claim 1, characterized in that: the coupling screw is disposed between the first segment and the second segment.

3. The novel TE mode dielectric resonator according to claim 1, characterized in that: the first section and the second section are both gradually inclined downwards towards one end far away from the third section.

4. The novel TE mode dielectric resonator according to claim 1, characterized in that: the cross section of the positive coupling block is U-shaped.

5. The novel TE mode dielectric resonator according to claim 1, characterized in that: the third section is provided with a screw hole and is fixedly connected with the boss through a screw penetrating through the screw hole.