CN211320274U - Folding structure adjustable window dielectric filter - Google Patents
Folding structure adjustable window dielectric filter Download PDFInfo
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- CN211320274U CN211320274U CN201922098933.XU CN201922098933U CN211320274U CN 211320274 U CN211320274 U CN 211320274U CN 201922098933 U CN201922098933 U CN 201922098933U CN 211320274 U CN211320274 U CN 211320274U
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Abstract
A folding structure adjustable window dielectric filter comprises a first dielectric module, a second dielectric module and a test board; the first medium module is of a cuboid structure; the center of the bottom surface of the first medium module is of a counter bore-shaped structure to form a first resonant cavity; two sides of the first medium module are provided with first coupling windows which are symmetrically arranged; an input port and an output port are arranged at two ends of the bottom surface of the first medium module; the second medium module is attached to the top surface of the first medium module; the center of the top surface of the second medium module is in a counter bore-shaped structure to form a second resonant cavity; two ends of the second medium module are provided with second side edge coupling windows, and the center of the second medium module is provided with a second center coupling module; the test board is in a rectangular plate-shaped structure and is attached to the bottom surface of the first medium module. The utility model has more stable input and output of the electrical performance; the method can reduce the production cost, improve the debugging production efficiency, is suitable for communication equipment in the wireless base station, and has wide application range.
Description
Technical Field
The utility model relates to a wave filter field, especially an adjustable window dielectric filter of beta structure.
Background
The Dielectric filter (English digital filter) is designed and manufactured by utilizing the characteristics of low loss, high Dielectric constant, small frequency temperature coefficient and thermal expansion coefficient, high power bearing and the like of a Dielectric ceramic material, and is composed of a plurality of longitudinal multistage series or parallel ladder circuits of long resonators. The dielectric filter is a microwave filter which adopts a dielectric first resonant cavity to achieve frequency selection effect through multi-stage coupling.
At present, dielectric filters are widely used in communication devices of wireless base stations and other electronic devices. Such a dielectric filter has a general structure including a first dielectric module, a second dielectric module, and a test board. The prior dielectric filter structure has the following technical defects: (1) the end part of the first medium module is provided with an input port and an output port, the test board is generally directly inserted into the input port or the output port to be in direct contact, the input port and the output port are not tightly attached, and when the electrode column outputs signals, the signal transmission of the input port and the output port is unstable. (2) The first media module and the second media module generally adopt the same structural form, and the matching between the first media module and the second media module is poor. To overcome this problem, the depth of the first coupling window between the resonator cavities must be adjusted, and the first resonator cavity needs to be reworked when the first coupling window is adjusted. As a result, not only is material wasted and production cost increased, but also production efficiency is lowered.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of the existence, the utility model discloses an adjustable window dielectric filter of beta structure, its concrete technical scheme as follows: a folding structure adjustable window dielectric filter comprises a first dielectric module, a second dielectric module and a test board;
the first medium module is of a cuboid structure; the center of the bottom surface of the first medium module is of a counter bore-shaped structure to form a first resonant cavity; first coupling windows are arranged on two sides of the first medium module and are symmetrically arranged; an input port and an output port are arranged at two ends of the bottom surface of the first medium module, and the end surfaces of the input port and the output port are of groove-shaped structures to form port grooves; the surface of the port groove is provided with a port lug, and the port lug is fixedly connected with the first medium module to form an integrated structure; the port jack is arranged on one side of the surface of the port bump and penetrates through the first medium module; one side of the port bump is provided with a port connecting hole; both sides of the top surface of the first medium module are provided with lower film side edge coupling windows; a lower film center coupling window is arranged in the center of the top surface of the first medium module;
the second medium module is in a cuboid structure, the size of the second medium module is matched with that of the first medium module, and the second medium module is attached to the top surface of the first medium module; the center of the top surface of the second medium module is of a counter bore-shaped structure to form a second resonant cavity; two ends of the second medium module are provided with second side edge coupling windows, and the center of the second medium module is provided with a second center coupling module; upper film side coupling windows are arranged on two sides of the bottom surface of the second medium module; an upper film center coupling window is arranged in the center of the bottom surface of the second medium module;
the test board is of a rectangular plate-shaped structure and is attached to the bottom surface of the first medium module; two ends of the top surface of the test board are of groove-shaped structures to form a test board top groove, and one end of the test board groove is provided with a test board top lug; the test board is characterized in that two ends of the bottom surface of the test board are of groove-shaped structures to form a bottom groove of the test board, a bottom bump of the test board is arranged at one end of the bottom groove of the test board, a through hole of the test board is arranged at the center of the bottom bump of the test board, and the through hole of the test board penetrates through the bottom bump of the test board and the top bump of the test board.
Furthermore, the number of the first resonant cavities is five, and the first resonant cavities are arranged in a transverse I shape.
Furthermore, the number of the first coupling windows is eight, and each first coupling window is in a through hole-shaped structure.
Furthermore, each first coupling window is arranged in a transverse array, and the number of the first coupling windows arranged between every two first resonant cavities is two, and the first coupling windows are respectively arranged at two sides of the first resonant cavities and symmetrically arranged.
Furthermore, the number of the port grooves is two, and the port grooves are symmetrically arranged at two ends of the bottom surface of the first medium module; the port groove is of a circular structure.
Furthermore, one side of the port bump is of a circular ring structure, one side of the port bump is of a triangular structure, and the surface of the port bump is of an arrow-shaped structure.
Furthermore, the port jack is of a circular hole-shaped structure and is arranged in a circular ring on one side of the port bump.
Furthermore, the port connecting hole is arranged on one side of the port jack, and the port connecting hole extends into the first media module.
Further, the diameter of the port connecting hole is smaller than that of the port inserting hole.
Furthermore, the number of the lower film side coupling windows is four, and each lower film side coupling window is arranged between two first coupling windows on each side and symmetrically arranged on two sides; each lower film side coupling window is of a rectangular structure.
Furthermore, the number of the lower film center coupling windows is two, the lower film center coupling windows are symmetrically arranged at two ends of the top surface of the first medium module, and each lower film side coupling window is arranged between the first coupling windows at two sides.
Furthermore, the plane of each lower film central coupling window is in a T shape.
Furthermore, the number of the second resonant cavities is four, and the second resonant cavities are arranged in a transverse I shape; and the position of each second resonant cavity is eccentrically arranged with the first resonant cavity.
Furthermore, the second central coupling modules are symmetrically arranged in two rows, and the number of the second central coupling modules in each row is three.
Furthermore, the number of the upper film side coupling windows is four, each upper film side coupling window is of a rectangular structure, and the position of each upper film side coupling window is matched with that of the lower film side coupling window.
Furthermore, the number of the upper film central coupling windows is two, and the position of each upper film central coupling window is adapted to the position of the lower film central coupling window; the shape of each upper film center coupling window is consistent with that of the corresponding lower film center coupling window, and the upper film center coupling windows and the lower film center coupling windows are in T-shaped structures.
Furthermore, the test board top groove is of an arc-shaped structure, and the shape and the size of the test board top groove are matched with those of the port groove.
Furthermore, the bottom groove of the test board is of a square structure.
The structure principle of the utility model is that:
attaching the top surface of the first medium module to the bottom surface of the second medium module; and attaching the top surface of the test board to the bottom surface of the first dielectric module, aligning the through hole of the test board with the port connecting hole, penetrating the electrode column through the test board and extending into the port connecting hole, and fixing the test board and the dielectric filter body.
The utility model has the advantages that:
(1) the utility model discloses improved the input port of first medium module and the structure of output port, designed the port lug of port department for "arrow point shape" structure, the port department is inseparable with test board top lug compaction, is equipped with the port connecting hole of a miniature deep hole in one side of port lug, can be connected survey test panel and first medium door module through spliced pole cooperation port connecting hole to electric property's input/output is more stable.
(2) The utility model discloses carry out the improvement design with coupling window structure between first medium module and the second medium module, generally be circular or square counter bore structure that current form adopted, change into "T" font counter bore structure, be equipped with circular through-hole structure simultaneously in resonant cavity both sides; the coupling structure can be embedded into a T-shaped coupling window with a smaller shape, so that the first medium module and the second medium module can be quickly positioned without secondary processing of the resonant cavity; the dielectric filter adopting the port transmission structure can reduce the production cost, improve the debugging production efficiency, is suitable for communication equipment in an infinite base station and has wide application range. Simultaneously, utility model discloses an adjust the aperture of first coupling window and second side coupling window, can change the data flux of first medium module and second medium module.
Drawings
Fig. 1 is a schematic bottom view of a first media module of the present invention.
Figure 2 is a top view of a first media module of the present invention.
Fig. 3 is a schematic bottom view of a second media module according to the present invention.
Fig. 4 is a top view of a second media module according to the present invention.
FIG. 5 is a bottom view of the test board of the present invention.
FIG. 6 is a schematic top view of the test board of the present invention.
Fig. 7 is a schematic structural diagram of the first dielectric module after the test board is mounted on the bottom surface of the first dielectric module.
List of reference numerals: the device comprises a first medium module 1, a first resonant cavity 1-1, a first coupling window 1-2, a port groove 1-3, a port bump 1-4, a port jack 1-5, a port connecting hole 1-6, a lower membrane side coupling window 1-7 and a lower membrane center coupling window 1-8;
the first medium module 2, a first resonant cavity 2-1, a first side coupling window 2-2, a first center coupling module 2-3, an upper membrane side coupling window 2-4 and an upper membrane center coupling window 2-5;
the test board 3, the test board top groove 3-1, the test board top bump 3-2, the test board bottom groove 3-3, the test board bottom bump 3-4, and the test board through hole 3-5.
Detailed Description
For making the technical scheme of the utility model clear more clearly and definitely, it is right to combine the drawing below the utility model discloses further describe, any is right the utility model discloses technical scheme's technical characteristic carries out the scheme that equivalent replacement and conventional reasoning reachs and all falls into the utility model discloses protection scope. The fixed connection, the fixed arrangement and the fixed structure mentioned in the embodiment are known technologies known to those skilled in the art, such as gluing, welding, screwing, bolt-nut connection, riveting and the like.
With reference to the attached drawings, the tunable window dielectric filter with the folding structure comprises a first dielectric module, a second dielectric module and a test board;
the first medium module is of a cuboid structure; the center of the bottom surface of the first medium module is of a counter bore-shaped structure to form a first resonant cavity; first coupling windows are arranged on two sides of the first medium module and are symmetrically arranged; an input port and an output port are arranged at two ends of the bottom surface of the first medium module, and the end surfaces of the input port and the output port are of groove-shaped structures to form port grooves; the surface of the port groove is provided with a port lug, and the port lug is fixedly connected with the first medium module to form an integrated structure; the port jack is arranged on one side of the surface of the port bump and penetrates through the first medium module; one side of the port bump is provided with a port connecting hole; both sides of the top surface of the first medium module are provided with lower film side edge coupling windows; a lower film center coupling window is arranged in the center of the top surface of the first medium module;
the second medium module is in a cuboid structure, the size of the second medium module is matched with that of the first medium module, and the second medium module is attached to the top surface of the first medium module; the center of the top surface of the second medium module is of a counter bore-shaped structure to form a second resonant cavity; two ends of the second medium module are provided with second side edge coupling windows, and the center of the second medium module is provided with a second center coupling module; upper film side coupling windows are arranged on two sides of the bottom surface of the second medium module; an upper film center coupling window is arranged in the center of the bottom surface of the second medium module;
the test board is of a rectangular plate-shaped structure and is attached to the bottom surface of the first medium module; two ends of the top surface of the test board are of groove-shaped structures to form a test board top groove, and one end of the test board groove is provided with a test board top lug; the test board is characterized in that two ends of the bottom surface of the test board are of groove-shaped structures to form a bottom groove of the test board, a bottom bump of the test board is arranged at one end of the bottom groove of the test board, a through hole of the test board is arranged at the center of the bottom bump of the test board, and the through hole of the test board penetrates through the bottom bump of the test board and the top bump of the test board.
Furthermore, the number of the first resonant cavities is five, and the first resonant cavities are arranged in a transverse I shape.
Furthermore, the number of the first coupling windows is eight, and each first coupling window is in a through hole-shaped structure.
Furthermore, each first coupling window is arranged in a transverse array, and the number of the first coupling windows arranged between every two first resonant cavities is two, and the first coupling windows are respectively arranged at two sides of the first resonant cavities and symmetrically arranged.
Furthermore, the number of the port grooves is two, and the port grooves are symmetrically arranged at two ends of the bottom surface of the first medium module; the port groove is of a circular structure.
Furthermore, one side of the port bump is of a circular ring structure, one side of the port bump is of a triangular structure, and the surface of the port bump is of an arrow-shaped structure.
Furthermore, the port jack is of a circular hole-shaped structure and is arranged in a circular ring on one side of the port bump.
Furthermore, the port connecting hole is arranged on one side of the port jack, and the port connecting hole extends into the first media module.
Further, the diameter of the port connecting hole is smaller than that of the port inserting hole.
Furthermore, the number of the lower film side coupling windows is four, and each lower film side coupling window is arranged between two first coupling windows on each side and symmetrically arranged on two sides; each lower film side coupling window is of a rectangular structure.
Furthermore, the number of the lower film center coupling windows is two, the lower film center coupling windows are symmetrically arranged at two ends of the top surface of the first medium module, and each lower film side coupling window is arranged between the first coupling windows at two sides.
Furthermore, the plane of each lower film central coupling window is in a T shape.
Furthermore, the number of the second resonant cavities is four, and the second resonant cavities are arranged in a transverse I shape; and the position of each second resonant cavity is eccentrically arranged with the first resonant cavity.
Furthermore, the second central coupling modules are symmetrically arranged in two rows, and the number of the second central coupling modules in each row is three.
Furthermore, the number of the upper film side coupling windows is four, each upper film side coupling window is of a rectangular structure, and the position of each upper film side coupling window is matched with that of the lower film side coupling window.
Furthermore, the number of the upper film central coupling windows is two, and the position of each upper film central coupling window is adapted to the position of the lower film central coupling window; the shape of each upper film center coupling window is consistent with that of the corresponding lower film center coupling window, and the upper film center coupling windows and the lower film center coupling windows are in T-shaped structures.
Furthermore, the test board top groove is of an arc-shaped structure, and the shape and the size of the test board top groove are matched with those of the port groove.
Furthermore, the bottom groove of the test board is of a square structure.
The structure principle of the utility model is that:
attaching the top surface of the first medium module to the bottom surface of the second medium module; and attaching the top surface of the test board to the bottom surface of the first dielectric module, aligning the through hole of the test board with the port connecting hole, penetrating the electrode column through the test board and extending into the port connecting hole, and fixing the test board and the dielectric filter body.
The utility model has the advantages that:
(1) the utility model discloses improved the input port of first medium module and the structure of output port, designed the port lug of port department for "arrow point shape" structure, the port department is inseparable with test board top lug compaction, is equipped with the port connecting hole of a miniature deep hole in one side of port lug, can be connected survey test panel and first medium door module through spliced pole cooperation port connecting hole to electric property's input/output is more stable.
(2) The utility model discloses carry out the improvement design with coupling window structure between first medium module and the second medium module, generally be circular or square counter bore structure that current form adopted, change into "T" font counter bore structure, be equipped with circular through-hole structure simultaneously in resonant cavity both sides; the coupling structure can be embedded into a T-shaped coupling window with a smaller shape, so that the first medium module and the second medium module can be quickly positioned without secondary processing of the resonant cavity; the dielectric filter adopting the port transmission structure can reduce the production cost, improve the debugging production efficiency, is suitable for communication equipment in an infinite base station and has wide application range. Simultaneously, utility model discloses an adjust the aperture of first coupling window and second side coupling window, can change the data flux of first medium module and second medium module.
Claims (10)
1. A folding structure adjustable window dielectric filter is characterized by comprising a first dielectric module, a second dielectric module and a test board;
the first medium module is of a cuboid structure; the center of the bottom surface of the first medium module is of a counter bore-shaped structure to form a first resonant cavity; first coupling windows are arranged on two sides of the first medium module and are symmetrically arranged; an input port and an output port are arranged at two ends of the bottom surface of the first medium module, and the end surfaces of the input port and the output port are of groove-shaped structures to form port grooves; the surface of the port groove is provided with a port lug, and the port lug is fixedly connected with the first medium module to form an integrated structure; the port jack is arranged on one side of the surface of the port bump and penetrates through the first medium module; one side of the port bump is provided with a port connecting hole; both sides of the top surface of the first medium module are provided with lower film side edge coupling windows; a lower film center coupling window is arranged in the center of the top surface of the first medium module;
the second medium module is in a cuboid structure, the size of the second medium module is matched with that of the first medium module, and the second medium module is attached to the top surface of the first medium module; the center of the top surface of the second medium module is of a counter bore-shaped structure to form a second resonant cavity; two ends of the second medium module are provided with second side edge coupling windows, and the center of the second medium module is provided with a second center coupling module; upper film side coupling windows are arranged on two sides of the bottom surface of the second medium module; an upper film center coupling window is arranged in the center of the bottom surface of the second medium module;
the test board is of a rectangular plate-shaped structure and is attached to the bottom surface of the first medium module; two ends of the top surface of the test board are of groove-shaped structures to form a test board top groove, and one end of the test board groove is provided with a test board top lug; the test board is characterized in that two ends of the bottom surface of the test board are of groove-shaped structures to form a bottom groove of the test board, a bottom bump of the test board is arranged at one end of the bottom groove of the test board, a through hole of the test board is arranged at the center of the bottom bump of the test board, and the through hole of the test board penetrates through the bottom bump of the test board and the top bump of the test board.
2. The tunable window dielectric filter with folded structure of claim 1, wherein each of the first coupling windows is disposed in a transverse array, and the number of the first coupling windows disposed between each two first resonant cavities is two, and the first coupling windows are disposed on two sides of the first resonant cavities respectively and symmetrically disposed.
3. The tunable window dielectric filter with a folded structure as claimed in claim 1, wherein the number of the port recesses is two, and the port recesses are symmetrically disposed at two ends of the bottom surface of the first dielectric module; the port groove is of a circular structure.
4. The tunable window dielectric filter with a folded structure as claimed in claim 1, wherein one side of the port bump has a circular ring structure, one side of the port bump has a triangular structure, and the surface of the port bump has an "arrow" structure.
5. The tunable window dielectric filter of claim 1, wherein the port connection hole is disposed on one side of the port insertion hole, and the port connection hole extends into the first dielectric module.
6. The tunable window dielectric filter with folded structure of claim 1, wherein the number of the lower film side coupling windows is four, and each lower film side coupling window is disposed between two of the first coupling windows on each side, symmetrically disposed on both sides; each lower film side coupling window is of a rectangular structure.
7. The tunable window dielectric filter with folded structure of claim 6, wherein the number of the lower film central coupling windows is two, the two lower film central coupling windows are symmetrically disposed at two ends of the top surface of the first dielectric module, and each of the lower film side coupling windows is disposed between the two first coupling windows.
8. A tunable folded structure window dielectric filter according to claim 6, wherein the plane of each of the lower film central coupling windows is "T" shaped.
9. A tunable folded structure window dielectric filter according to claim 1, wherein the number of the upper film side coupling windows is four, each of the upper film side coupling windows has a rectangular structure, and the position of each of the upper film side coupling windows is adapted to the position of the lower film side coupling window.
10. A tunable window dielectric filter with a folded structure according to claim 1 or 9, wherein the number of the upper film central coupling windows is two, and each of the upper film central coupling windows is located at a position corresponding to the position of the lower film central coupling window; the shape of each upper film center coupling window is consistent with that of the corresponding lower film center coupling window, and the upper film center coupling windows and the lower film center coupling windows are in T-shaped structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098933.XU CN211320274U (en) | 2019-11-29 | 2019-11-29 | Folding structure adjustable window dielectric filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098933.XU CN211320274U (en) | 2019-11-29 | 2019-11-29 | Folding structure adjustable window dielectric filter |
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| Publication Number | Publication Date |
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| CN211320274U true CN211320274U (en) | 2020-08-21 |
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| CN201922098933.XU Active CN211320274U (en) | 2019-11-29 | 2019-11-29 | Folding structure adjustable window dielectric filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994089A (en) * | 2019-11-29 | 2020-04-10 | 常州市瑞得通讯科技有限公司 | Folding structure adjustable window dielectric filter |
| CN110994089B (en) * | 2019-11-29 | 2024-06-21 | 常州市瑞得通讯科技有限公司 | Window dielectric filter with adjustable folding structure |
-
2019
- 2019-11-29 CN CN201922098933.XU patent/CN211320274U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994089A (en) * | 2019-11-29 | 2020-04-10 | 常州市瑞得通讯科技有限公司 | Folding structure adjustable window dielectric filter |
| CN110994089B (en) * | 2019-11-29 | 2024-06-21 | 常州市瑞得通讯科技有限公司 | Window dielectric filter with adjustable folding structure |
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