CN213959111U - Adjustable symmetrical zero coupling piece and filter - Google Patents
Adjustable symmetrical zero coupling piece and filter Download PDFInfo
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- CN213959111U CN213959111U CN202022255992.6U CN202022255992U CN213959111U CN 213959111 U CN213959111 U CN 213959111U CN 202022255992 U CN202022255992 U CN 202022255992U CN 213959111 U CN213959111 U CN 213959111U
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Abstract
The utility model relates to an adjustable symmetry zero point coupling piece and wave filter, wherein, the coupling piece includes: the first sheet body is provided with a first coupling site and a second coupling site, and a first adjustable interval is formed between one end of the first sheet body and the center of the first coupling site; the second lamellar body, the second lamellar body is connected with first lamellar body and is formed T type structure, and is equipped with the installation site that is used for being connected with the wave filter body on the second lamellar body, and the length of second lamellar body forms the adjustable interval of second, the second lamellar body is kept away from the one end of first lamellar body with first lamellar body is kept away from form the adjustable interval of third between one side of second lamellar body. The length of the first adjustable interval can be adjusted to change the zero point at two ends, the length of the second adjustable interval can be adjusted to finely adjust the high-end zero point, and the length of the third adjustable interval can be adjusted to adjust the strength of the low-end zero point, so that the balance adjustment of the zero points at two sides is realized.
Description
Technical Field
The utility model relates to a wave filter technical field, in particular to adjustable symmetry zero point coupling piece and wave filter.
Background
Today, communication systems are more and more developed, the requirements on the size of filters are more and more stringent, and the requirements on suppression are more and more high. For the direct cavity filter, a structure of an additional zero point is often required, and the high-end zero point of the CQ coupling structure is much stronger than the low-end zero point of the traditional direct cavity filter under the low-frequency condition, which is difficult to satisfy the requirement of zero point balance when symmetrical suppression is provided on two sides.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an adjustable symmetry zero point coupling piece and wave filter has the advantage that can realize both sides zero point balance.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an adjustable symmetrical zero coupling plate, comprising:
the first sheet body is provided with a first coupling site and a second coupling site, and a first adjustable distance is formed between one end of the first sheet body close to the first coupling site and the center of the first coupling site;
the filter comprises a first sheet body, a second sheet body connected with the first sheet body, wherein the second sheet body is connected with the first sheet body to form a T-shaped structure, mounting sites used for being connected with the filter body are arranged on the second sheet body, the length of the second sheet body forms a second adjustable distance, and a third adjustable distance is formed between one end, far away from the first sheet body, of the second sheet body and one side, far away from the second sheet body, of the first sheet body.
According to the technical scheme, the length of the first adjustable interval can be adjusted to change the zero point at two ends, the length of the second adjustable interval can be adjusted to finely adjust the high-end zero point, and the length of the third adjustable interval can be adjusted to adjust the low-end zero point, so that balance adjustment of the two zero points is realized.
As an optimized proposal of the utility model, the junction of the first sheet body and the second sheet body is provided with a transition arc sheet.
Realize above-mentioned technical scheme, the connection shaping of the second lamellar body of the first lamellar body of being convenient for.
As an optimized scheme of the utility model, installation site passes through screw lock solid or welded fastening with the wave filter body.
As an optimized proposal of the utility model, the two sides of the installation site are provided with elastic deformation parts.
Realize above-mentioned technical scheme, be convenient for be connected second lamellar body and wave filter body mutually.
In another aspect, the present invention further provides a filter, including: a filter body and a coupling piece as described in any of the above claims.
To sum up, the utility model discloses following beneficial effect has:
the embodiment of the utility model provides a through providing an adjustable symmetry zero point coupling piece and wave filter, wherein, the coupling piece includes: the device comprises a first sheet body, a second sheet body and a third sheet body, wherein a first coupling point and a second coupling point are arranged on the first sheet body, a first adjustable interval is formed between one end of the first sheet body, close to the first coupling point, and the center of the first coupling point, and a second adjustable interval is formed between the length of the second sheet body; the filter comprises a first sheet body, a second sheet body connected with the first sheet body, wherein the second sheet body is connected with the first sheet body to form a T-shaped structure, a mounting site used for being connected with the filter body is arranged on the second sheet body, and a third adjustable distance is formed between one end, far away from the first sheet body, of the second sheet body and one side, far away from the second sheet body, of the first sheet body. The length of the first adjustable interval can be adjusted to change the zero point at two ends, the length of the second adjustable interval can be adjusted to finely adjust the high-end zero point, and the length of the third adjustable interval can be adjusted to adjust the strength of the low-end zero point, so that the balance adjustment of the zero points at two sides is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a frequency response curve diagram of the second embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. a first sheet body; 11. a first coupling site; 12. a second coupling site; 2. a second sheet body; 21. A mounting site; 22. a transition arc sheet; 23. an elastic deformation portion; 3. a filter body; l1, first adjustable spacing; l2, second adjustable spacing; l3, third adjustable spacing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
An adjustable symmetrical zero point coupling plate, as shown in fig. 1, comprises: the first sheet body 1 is provided with a first coupling site 11 and a second coupling site 12, and a first adjustable distance L1 is formed between one end of the first sheet body 1 close to the first coupling site 11 and the center of the first coupling site 11; the second sheet body 2 is connected with the first sheet body 1, the second sheet body 2 is connected with the first sheet body 1 to form a T-shaped structure, a mounting site 21 used for being connected with the filter body 3 is arranged on the second sheet body 2, a second adjustable distance L2 is formed by the length of the second sheet body 2, and a third adjustable distance L3 is formed between one end, away from the first sheet body 1, of the second sheet body 2 and one side, away from the second sheet body 2, of the first sheet body 1.
Specifically, the first sheet body 1 and the second sheet body 2 can be processed and formed in an integrated forming mode, and a transition arc piece 22 is arranged at the joint of the first sheet body 1 and the second sheet body 2, so that the second sheet body 2 of the first sheet body 1 can be connected and formed conveniently; the mounting point 21 and the filter body 3 are fixed by screw locking or welding, the welding mode can be selected from soldering, laser welding, friction welding, vacuum welding and the like, and elastic deformation parts 23 are arranged on two sides of the mounting point 21 so as to connect the second sheet body 2 with the filter body 3.
When the adjustable zero-point balance adjusting device is used, the zero points at two ends can be changed by adjusting the length of the first adjustable interval L1, the high-end zero point can be finely adjusted by adjusting the length of the second adjustable interval L2, the low-end zero point can be strengthened or weakened by adjusting the length of the third adjustable interval L3, and therefore balance adjustment of the zero points at two sides is achieved.
Example two
A filter, as shown in fig. 2, comprising: a filter body 3 and a coupling tab as described in the first embodiment, the coupling tab being fixed to the filter body 3 by mounting sites 21; as shown in fig. 3, according to the test result of fig. 3, the embodiment of the present invention can effectively improve the zero balance of the passband both sides with symmetric suppression, and therefore, the present invention can be widely applied when the filter has the requirement of symmetric suppression.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An adjustable symmetrical zero coupling plate, comprising:
the first sheet body is provided with a first coupling site and a second coupling site, and a first adjustable distance is formed between one end of the first sheet body close to the first coupling site and the center of the first coupling site;
the filter comprises a first sheet body, a second sheet body connected with the first sheet body, wherein the second sheet body is connected with the first sheet body to form a T-shaped structure, mounting sites used for being connected with the filter body are arranged on the second sheet body, the length of the second sheet body forms a second adjustable distance, and a third adjustable distance is formed between one end, far away from the first sheet body, of the second sheet body and one side, far away from the second sheet body, of the first sheet body.
2. The adjustable symmetrical zero coupling piece according to claim 1, wherein a transition arc piece is arranged at the joint of the first piece body and the second piece body.
3. The adjustable symmetrical zero coupling piece of claim 2, wherein the mounting sites and the filter body are fixed by screwing or welding.
4. The adjustable symmetrical zero point coupling piece according to claim 2 or 3, wherein the two sides of the mounting point are provided with elastic deformation parts.
5. A filter, comprising: a filter body and a coupling piece as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022255992.6U CN213959111U (en) | 2020-10-12 | 2020-10-12 | Adjustable symmetrical zero coupling piece and filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022255992.6U CN213959111U (en) | 2020-10-12 | 2020-10-12 | Adjustable symmetrical zero coupling piece and filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213959111U true CN213959111U (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022255992.6U Active CN213959111U (en) | 2020-10-12 | 2020-10-12 | Adjustable symmetrical zero coupling piece and filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213959111U (en) |
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2020
- 2020-10-12 CN CN202022255992.6U patent/CN213959111U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211110 Address after: 215000 8 Fujin Road, Guangfu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Anjie Technology Co.,Ltd. Address before: 215000 No. 3019, Hai Zang Xi Road, Luzhi Town, Wuzhong District, Suzhou, Jiangsu. Patentee before: Suzhou Weijie Communication Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |