CN210489795U - Novel filter capacitor cross coupling structure - Google Patents
Novel filter capacitor cross coupling structure Download PDFInfo
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- CN210489795U CN210489795U CN201922134734.XU CN201922134734U CN210489795U CN 210489795 U CN210489795 U CN 210489795U CN 201922134734 U CN201922134734 U CN 201922134734U CN 210489795 U CN210489795 U CN 210489795U
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Abstract
The utility model discloses a novel wave filter electric capacity cross coupling structure, the power distribution cavity comprises a cavity body, be provided with in the middle of the cavity rear end face and take a percentage, take a percentage and be provided with the connector outward, the cavity up end is provided with the apron, from the top down has set gradually resonance bar, first medium and second medium between bottom lateral wall in apron and the cavity, the rotation is provided with the tuning screw rod in the middle of the apron, simple structure, and the structure is clear easily understood, mutual assembly connection between resonance bar, first medium, second medium and the metal sleeve, the sheetmetal closely assembles between resonance bar and resonance post to inlay and the coupling medium, design increase coupling volume, reduce frequency increases the distance between two resonance bars, satisfies the intensity and the reliability demand of filtering article product to this structure, thereby improves the product uniformity, strengthens integrated structure.
Description
Technical Field
The utility model relates to the field of communication technology, specifically be a novel wave filter electric capacity cross coupling structure.
Background
Along with the development of the related industries of modern wireless communication and communication, radio frequency resources are more and more tense, frequency bands used by communication systems of various systems are more and more close, and the communication systems of adjacent frequency bands are easily interfered and cannot normally work, so that higher requirements are put forward on the communication systems, the frequency is reduced, the time delay is enhanced, and the product consistency is improved.
In the existing development and design process of a broadband filter, the coupling amount required by the requirement of the passband width is large, the size of a coupling window of the filter is relatively increased, but the limitation of the appearance of a cavity cannot be infinitely increased, so the coupling between resonators needs to be strengthened by other methods, the debugging space is small (the debugging difficulty is increased and the consistency is poor), the Q value of the filter is deteriorated, the frequency of the resonator is increased, an isolated island is formed on the cavity, the material is difficult to fill, the strength is poor, the service life of a mold is shortened, and the risk cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel wave filter electric capacity cross coupling structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a novel filter electric capacity cross coupling structure, includes the cavity, be provided with in the middle of the cavity rear end face and take a percentage, take a percentage and be provided with the connector outward, the cavity up end is provided with the apron, from the top down has set gradually resonance bar, first medium and second medium between the bottom lateral wall in apron and the cavity, it is provided with tuning screw to rotate in the middle of the apron.
As a further aspect of the present invention: the cover plate is fixedly connected with the side wall of the wall body through a plurality of third screws.
As a further aspect of the present invention: the resonance rod comprises a disc and a sleeve which are connected integrally, a round hole is formed in the middle of the disc and the sleeve, and the lower end of the tuning screw rod extends into the round hole.
As a further aspect of the present invention: the first medium is arranged in a flange shape, and the first medium is sleeved on the outer surface of a sleeve in the tuning screw rod.
As a further aspect of the present invention: the second medium is arranged in a cylindrical shape, and a resonance column is fixedly arranged on the side wall of the bottom in the cavity.
As a further aspect of the present invention: the outer surface of the second medium is sleeved with a metal sleeve, the outer surface of the sleeve in the tuning screw is sleeved with the second medium, and the upper ends of the second medium and the metal sleeve are in abutting connection with the lower end face of the first medium.
As a further aspect of the present invention: the sleeve in the tuning screw rod is fixedly connected with the resonance column through a first screw, and a metal sheet is arranged between the lower end face of the sleeve in the tuning screw rod and the upper end face of the resonance column.
As a further aspect of the present invention: the connector is fixedly connected with the rear side wall of the cavity through a plurality of second screws.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, the structure is clear understandable, mutual assembly connection between resonance bar, first medium, second medium and the metal sleeve, the sheetmetal closely assembles between resonance bar and resonance post to inlay and the coupling medium, design increase coupling volume, reduce frequency, increase the distance between two resonance bars, satisfy the intensity and the reliability demand of filtering article product to this structure, thereby improve the product uniformity, strengthen the wholeization structure.
Drawings
FIG. 1 is an exploded assembly diagram of a novel cross-coupled filter capacitor structure;
FIG. 2 is a schematic diagram of an assembled cross-sectional structure of a novel cross-coupling structure of a filter capacitor;
FIG. 3 is a schematic diagram of a second dielectric structure of a novel cross-coupling structure of a filter capacitor;
FIG. 4 is a schematic diagram of a metal bushing structure of a novel cross-coupling structure of a filter capacitor;
fig. 5 is a schematic diagram of a first dielectric structure of a novel filter capacitor cross-coupling structure.
In the figure: 1-tuning screw rod, 2-tap, 3-resonance rod, 4-second medium, 5-metal sleeve, 6-first medium, 7-metal sheet, 8-cavity, 9-cover plate, 10-connector, 11-first screw, 12-second screw, 13-third screw and 14-resonance column.
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 work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a novel filter capacitor cross coupling structure comprises a cavity 8, a tap 2 is arranged in the middle of the rear end face of the cavity 8, a connector 10 is arranged outside the tap 2, a cover plate 9 is arranged on the upper end face of the cavity 8, a resonance rod 3, a first medium 6 and a second medium 4 are sequentially arranged between the cover plate 9 and the bottom side wall in the cavity 8 from top to bottom, a tuning screw rod 1 is rotatably arranged in the middle of the cover plate 9, the cover plate 9 is fixedly connected with the side wall of a wall 8 through a plurality of third screws 13, the resonance rod 3 comprises an integrally connected disc and a sleeve, a round hole is arranged in the middle of the disc and the sleeve, the lower end of the tuning screw rod 1 extends into the round hole, the connector 10 is fixedly connected with the rear side wall of the cavity 8 through a plurality of second screws 12, the first medium 6 is arranged in a flange shape, and the first medium 6 is sleeved on the outer surface of, second medium 4 sets up for the cylinder, the fixed resonance post 14 that is provided with on the bottom lateral wall in the cavity 8, 4 surface covers of second medium are equipped with metal sleeve 5, 4 covers of second medium establish the sleeve surface in tuning screw 1, the terminal surface is contradicted to be connected and is set up under second medium 4 and the 5 upper ends of metal sleeve and the first medium 6, sleeve in tuning screw 1 passes through first screw 11 and resonance post 14 fixed connection, be provided with sheetmetal 7 between terminal surface and the resonance post 14 up end under the sleeve in tuning screw 1.
The structure of the utility model is composed of coupling medium (a first medium 6 and a second medium 4), a metal sheet 7, screws (a first screw 11, a second screw and a third screw) and a cavity 8 matching structure; the resonance rod 3, the first medium 6, the second medium 4 and the metal sleeve 5 are mutually assembled and connected, the metal sheet 7 is tightly assembled between the resonance rod 3 and the resonance column 14 and is embedded with the coupling medium, the coupling amount is increased by the design, the frequency is reduced, the distance between the two resonance rods is increased, and the requirements of a filter product on the strength and the reliability of the structure are met.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A novel filter capacitor cross-coupling structure comprises a cavity (8), and is characterized in that: be provided with in the middle of cavity (8) rear end face and take a percentage (2), take a percentage (2) and be provided with connector (10) outward, cavity (8) up end is provided with apron (9), resonance bar (3), first medium (6) and second medium (4) have set gradually from the top down between bottom lateral wall in apron (9) and cavity (8), it is provided with tuning screw (1) to rotate in the middle of apron (9).
2. A novel filter capacitor cross-coupling structure as claimed in claim 1, wherein: the cover plate (9) is fixedly connected with the side wall of the cavity (8) through a plurality of third screws (13).
3. A novel filter capacitor cross-coupling structure as claimed in claim 2, wherein: the resonance rod (3) comprises a disc and a sleeve which are connected in an integrated mode, a round hole is formed in the middle of the disc and the sleeve, and the lower end of the tuning screw rod (1) extends into the round hole to be arranged.
4. A novel filter capacitor cross-coupling structure as claimed in claim 3, wherein: the first medium (6) is arranged in a flange shape, and the first medium (6) is sleeved on the outer surface of a sleeve in the tuning screw rod (1).
5. The novel filter capacitor cross-coupling structure of claim 4, wherein: the second medium (4) is arranged in a cylindrical shape, and a resonance column (14) is fixedly arranged on the side wall of the bottom in the cavity (8).
6. The novel filter capacitor cross-coupling structure of claim 5, wherein: the outer surface cover of second medium (4) is equipped with metal sleeve (5), sleeve surface in tuning screw (1) is established to second medium (4) cover, second medium (4) and metal sleeve (5) upper end and first medium (6) lower terminal surface are contradicted and are connected the setting.
7. The novel filter capacitor cross-coupling structure of claim 6, wherein: the sleeve in the tuning screw rod (1) is fixedly connected with the resonance column (14) through a first screw (11), and a metal sheet (7) is arranged between the lower end face of the sleeve in the tuning screw rod (1) and the upper end face of the resonance column (14).
8. The novel filter capacitor cross-coupling structure of claim 7, wherein: the connector (10) is fixedly connected with the rear side wall of the cavity (8) through a plurality of second screws (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134734.XU CN210489795U (en) | 2019-12-03 | 2019-12-03 | Novel filter capacitor cross coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134734.XU CN210489795U (en) | 2019-12-03 | 2019-12-03 | Novel filter capacitor cross coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210489795U true CN210489795U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922134734.XU Active CN210489795U (en) | 2019-12-03 | 2019-12-03 | Novel filter capacitor cross coupling structure |
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|---|---|
| CN (1) | CN210489795U (en) |
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2019
- 2019-12-03 CN CN201922134734.XU patent/CN210489795U/en active Active
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