CN211530150U - Double-mode ceramic dielectric filter - Google Patents
Double-mode ceramic dielectric filter Download PDFInfo
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- CN211530150U CN211530150U CN201922497022.4U CN201922497022U CN211530150U CN 211530150 U CN211530150 U CN 211530150U CN 201922497022 U CN201922497022 U CN 201922497022U CN 211530150 U CN211530150 U CN 211530150U
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- dielectric block
- frequency tuning
- tuning hole
- dielectric
- coupling
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- 239000000919 ceramic Substances 0.000 title claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 60
- 238000010168 coupling process Methods 0.000 claims abstract description 60
- 238000005859 coupling reaction Methods 0.000 claims abstract description 60
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000002902 bimodal effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model provides a bimodulus ceramic dielectric filter, including first dielectric block, second dielectric block, first dielectric block, second dielectric block are cavity structure, be provided with the coupling diaphragm between first dielectric block and the second dielectric block, first dielectric block and second dielectric block fixed connection, be provided with diaphragm coupling window on the coupling diaphragm, first dielectric block bottom is provided with first coupling mouth, second dielectric block bottom is provided with the second coupling mouth, first dielectric block top is provided with first frequency tuning hole, second dielectric block top is provided with second frequency tuning hole, first dielectric block side is provided with third frequency tuning hole, second dielectric block is provided with fourth frequency tuning hole with the same side in first dielectric block third frequency tuning hole. Through the utility model discloses to solve the complicated problem that leads to of bulky, the manufacturing cost is high of wave filter part assembly that prior art exists.
Description
Technical Field
The utility model relates to a microwave filter technical field, specifically speaking relate to a bimodulus ceramic dielectric filter.
Background
Along with the continuous development of communication technology, communication base station tends to develop towards miniaturization more and more, and the wave filter is one of the important component parts of base station, also developing towards miniaturization more and more, and traditional metal cavity wave filter has the advantage such as the insertion loss is little, isolation height, but also accompanies simultaneously that the part assembly is complicated, manufacturing cost is high, shortcomings such as bulky.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bimodulus ceramic dielectric filter to solve the complicated problem that leads to of wave filter part assembly that prior art exists bulky, manufacturing cost is high.
In order to solve the above technical problems, the present invention provides a dual-mode ceramic dielectric filter, comprising a first dielectric block and a second dielectric block, wherein the first dielectric block and the second dielectric block are in a cavity structure, a coupling diaphragm is arranged between the first dielectric block and the second dielectric block, the first dielectric block is fixedly connected with the second dielectric block, a diaphragm coupling window is arranged on the coupling diaphragm, a first coupling port is arranged at the bottom of the first dielectric block, a second coupling port is arranged at the bottom of the second dielectric block, a first frequency tuning hole is arranged at the top of the first dielectric block, a second frequency tuning hole is arranged at the top of the second dielectric block, a third frequency tuning hole is arranged at the side of the first dielectric block, a fourth frequency tuning hole is arranged at the same side of the third frequency tuning hole of the second dielectric block and the first dielectric block, a first chamfer surface is arranged between the top plane of the first dielectric block and the side of the third frequency tuning hole, the first chamfer surface is a first coupling window, a second chamfer surface is arranged between the bottom plane of the second dielectric block and the side face where the fourth frequency tuning hole is located, and the second chamfer surface is a second coupling window.
The surfaces of the first dielectric block and the second dielectric block are metalized, the used metal material is silver, and the thickness of the metal silver coating is set to be 15 um.
The shape of the diaphragm coupling window is a cross shape.
The length of the cross-shaped transverse opening of the diaphragm coupling window is 6.95mm, the width of the cross-shaped transverse opening of the diaphragm coupling window is 1mm, and the length of the longitudinal opening of the diaphragm coupling window is 7.13mm, and the width of the longitudinal opening of the diaphragm coupling window is 1.4 mm.
The utility model discloses the beneficial effect who brings: compared with the prior art, the double-mode ceramic dielectric filter of the utility model divides the four-order filter into two parts by utilizing the working mode of a cavity and a double mode, thereby greatly reducing the assembly difficulty, improving the assembly precision, promoting the product yield, and having the advantages of small volume, simple structure and convenient mass production; meanwhile, the filter has the characteristics of high Q value, small insertion loss and high isolation.
Drawings
FIG. 1 is a perspective view of a dual-mode ceramic dielectric filter according to an embodiment of the present invention
The first-frequency-tunable filter comprises a first dielectric block 1, a second dielectric block 2, a coupling diaphragm 3, a diaphragm coupling window 4, a first coupling port 5, a second coupling port 6, a first frequency tuning hole 7, a second frequency tuning hole 8, a third frequency tuning hole 9, a fourth frequency tuning hole 10, a first coupling window 11 and a second coupling window 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1, the utility model provides a dual-mode ceramic dielectric filter, which comprises a first dielectric block 1 and a second dielectric block 2, wherein the first dielectric block 1 and the second dielectric block 2 are in a cavity structure, a coupling diaphragm 3 is arranged between the first dielectric block 1 and the second dielectric block 2, the first dielectric block 1 is fixedly connected with the second dielectric block 2, a diaphragm coupling window 4 is arranged on the coupling diaphragm 3, a first coupling port 5 is arranged at the bottom of the first dielectric block 1, a second coupling port 6 is arranged at the bottom of the second dielectric block 2, a first frequency tuning hole 7 is arranged at the top of the first dielectric block 1, a second frequency tuning hole 8 is arranged at the top of the second dielectric block 2, a third frequency tuning hole 9 is arranged at the side of the first dielectric block 1, a fourth frequency tuning hole 10 is arranged at the same side of the second dielectric block 2 and the third frequency tuning hole 9 of the first dielectric block 1, a first chamfer surface is arranged between the top plane of the first dielectric block 1 and the side face where the third frequency tuning hole 9 is located, the first chamfer surface is a first coupling window 11, a second chamfer surface is arranged between the bottom plane of the second dielectric block 2 and the side face where the fourth frequency tuning hole 10 is located, and the second chamfer surface is a second coupling window 12.
Further, the surfaces of the first dielectric block 1 and the second dielectric block 2 are metalized, the used metal material is silver, and the thickness of the metal silver coating is set to be 15 um.
Further, the shape of the diaphragm coupling window 4 is a cross shape.
Further, the length of the cross-shaped transverse opening of the diaphragm coupling window 4 is 6.95mm, the width thereof is 1mm, and the length of the longitudinal opening thereof is 7.13mm, and the width thereof is 1.4 mm.
Sintering and molding the first dielectric block 1 and the second dielectric block 2, using a metal material silver to metalize the surfaces of the first dielectric block 1 and the second dielectric block 2, stripping the metal layers of the metalized first dielectric block 1 and the metalized second dielectric block 2 by using a laser machine to form a diaphragm coupling window 4, and aligning and welding the stripped first dielectric block 1 and the stripped second dielectric block 2 together.
Electromagnetic waves are input from the first coupling port 5, the electromagnetic waves in a required frequency range sequentially pass through the first dielectric block 1, the diaphragm coupling window 4 and the second dielectric block 2 and are output from the second coupling port 6, and the attenuation of the electromagnetic waves outside the required frequency range is filtered and cannot be output from the second coupling port 6.
Example two
As shown in fig. 1, the utility model provides a dual-mode ceramic dielectric filter, which comprises a first dielectric block 1 and a second dielectric block 2, wherein the first dielectric block 1 and the second dielectric block 2 are in a cavity structure, a coupling diaphragm 3 is arranged between the first dielectric block 1 and the second dielectric block 2, the first dielectric block 1 is fixedly connected with the second dielectric block 2, a diaphragm coupling window 4 is arranged on the coupling diaphragm 3, a first coupling port 5 is arranged at the bottom of the first dielectric block 1, a second coupling port 6 is arranged at the bottom of the second dielectric block 2, a first frequency tuning hole 7 is arranged at the top of the first dielectric block 1, a second frequency tuning hole 8 is arranged at the top of the second dielectric block 2, a third frequency tuning hole 9 is arranged at the side of the first dielectric block 1, a fourth frequency tuning hole 10 is arranged at the same side of the second dielectric block 2 and the third frequency tuning hole 9 of the first dielectric block 1, a first chamfer surface is arranged between the top plane of the first dielectric block 1 and the side face where the third frequency tuning hole 9 is located, the first chamfer surface is a first coupling window 11, a second chamfer surface is arranged between the bottom plane of the second dielectric block 2 and the side face where the fourth frequency tuning hole 10 is located, and the second chamfer surface is a second coupling window 12.
Further, the surfaces of the first dielectric block 1 and the second dielectric block 2 are metalized, the used metal material is silver, and the thickness of the metal silver coating is set to be 15 um.
Further, the shape of the diaphragm coupling window 4 is a cross shape.
Further, the length of the cross-shaped transverse opening of the diaphragm coupling window 4 is 6.95mm, the width thereof is 1mm, and the length of the longitudinal opening thereof is 7.13mm, and the width thereof is 1.4 mm.
Sintering and molding the first dielectric block 1 and the second dielectric block 2, using a metal material silver to metalize the surfaces of the first dielectric block 1 and the second dielectric block 2, stripping the metal layers of the metalized first dielectric block 1 and the metalized second dielectric block 2 by using a laser machine to form a diaphragm coupling window 4, and aligning and welding the stripped first dielectric block 1 and the stripped second dielectric block 2 together.
Electromagnetic waves are input from the second coupling port 6, the electromagnetic waves in a required frequency range sequentially pass through the second dielectric block 2, the diaphragm coupling window 4 and the first dielectric block 1 and are output from the first coupling port 5, and the attenuation of the electromagnetic waves outside the required frequency range is filtered and cannot be output from the first coupling port 5.
To sum up, the utility model discloses a bimodulus ceramic dielectric filter utilizes the mode of operation of a chamber bimodulus, cuts four rank filters into two, greatly reduces the assembly degree of difficulty, has improved the assembly precision, promotes the product yield, has small, simple structure, the advantage of the mass production of being convenient for; meanwhile, the filter has the characteristics of high Q value, small insertion loss and high isolation.
The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. A double-mode ceramic dielectric filter comprises a first dielectric block (1) and a second dielectric block (2), and is characterized in that: the first dielectric block (1) and the second dielectric block (2) are of cavity structures, a coupling diaphragm (3) is arranged between the first dielectric block (1) and the second dielectric block (2), the first dielectric block (1) and the second dielectric block (2) are fixedly connected, a diaphragm coupling window (4) is arranged on the coupling diaphragm (3), a first coupling port (5) is arranged at the bottom of the first dielectric block (1), a second coupling port (6) is arranged at the bottom of the second dielectric block (2), a first frequency tuning hole (7) is arranged at the top of the first dielectric block (1), a second frequency tuning hole (8) is arranged at the top of the second dielectric block (2), a third frequency tuning hole (9) is arranged on the side surface of the first dielectric block (1), and a fourth frequency tuning hole (10) is arranged on the same side surface of the second dielectric block (2) and the third frequency tuning hole (9) of the first dielectric block (1), a first chamfer surface is arranged between the top plane of the first dielectric block (1) and the side face where the third frequency tuning hole (9) is located, the first chamfer surface is a first coupling window (11), a second chamfer surface is arranged between the bottom plane of the second dielectric block (2) and the side face where the fourth frequency tuning hole (10) is located, and the second chamfer surface is a second coupling window (12).
2. The double-mode ceramic dielectric filter as claimed in claim 1, wherein the first dielectric block (1) and the second dielectric block (2) are surface-metalized, the metal material used is silver, and the thickness of the metal silver coating is set to be 15 μm.
3. A bimodal ceramic dielectric filter as claimed in claim 1, characterized in that said iris coupling window (4) has a cross-like shape.
4. A bimodal ceramic dielectric filter as claimed in claim 3, characterized in that said cross-shaped lateral opening of said diaphragm coupling window (4) has a length of 6.95mm and a width of 1mm, and the longitudinal opening has a length of 7.13mm and a width of 1.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497022.4U CN211530150U (en) | 2019-12-31 | 2019-12-31 | Double-mode ceramic dielectric filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497022.4U CN211530150U (en) | 2019-12-31 | 2019-12-31 | Double-mode ceramic dielectric filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211530150U true CN211530150U (en) | 2020-09-18 |
Family
ID=72448685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922497022.4U Expired - Fee Related CN211530150U (en) | 2019-12-31 | 2019-12-31 | Double-mode ceramic dielectric filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211530150U (en) |
-
2019
- 2019-12-31 CN CN201922497022.4U patent/CN211530150U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200918 |