CN220774696U - Porous ceramic substrate with grooves - Google Patents
Porous ceramic substrate with grooves Download PDFInfo
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- CN220774696U CN220774696U CN202322344204.4U CN202322344204U CN220774696U CN 220774696 U CN220774696 U CN 220774696U CN 202322344204 U CN202322344204 U CN 202322344204U CN 220774696 U CN220774696 U CN 220774696U
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- 239000000919 ceramic Substances 0.000 title claims abstract description 96
- 239000000758 substrate Substances 0.000 title claims abstract description 96
- 238000004891 communication Methods 0.000 claims abstract description 10
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The utility model discloses a porous ceramic substrate with grooves, which is of a tetragonal structure, wherein grooves are formed in the ceramic substrate and are arranged along the height direction of the ceramic substrate, the grooves penetrate through the ceramic substrate, and the opening direction of the grooves is perpendicular to the height direction of the ceramic substrate; the first surface of the ceramic substrate is provided with a first blind hole, the second surface of the ceramic substrate is provided with a second blind hole, the first surface and the second surface are vertically arranged, and the aperture of the first blind hole is larger than that of the second blind hole; the first blind hole comprises a first sub blind hole and a second sub blind hole, the first sub blind hole is far away from the center point of the ceramic substrate, and the second sub blind hole is close to the center point of the ceramic substrate; the distance between the first sub blind hole and the second surface is equal to the sum of the radius of the first sub blind hole and the depth of the second blind hole. The porous ceramic substrate with the grooves has the characteristics of small volume and light weight, and can effectively reduce the volume of a wireless communication base station.
Description
Technical Field
The utility model relates to the technical field of communication components, in particular to a porous ceramic substrate with grooves.
Background
With the continuous development of wireless communication technology, wireless communication base stations are increasingly densely distributed, and the requirement on the size of the base stations is increasingly high, so that the base stations are required to be continuously miniaturized. One of the most important components of the base station is a filter, and the purpose of reducing the volume of the base station can be achieved by adopting a small filter. Whereas filters are typically fabricated using ceramic substrates.
The ceramic substrate in the prior art is usually large in size and cannot meet the requirements of practical application.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the porous ceramic substrate with the grooves, so that the miniaturization and the light weight of the ceramic substrate are realized while the performance of the ceramic substrate is ensured.
In order to solve the technical problems in the background art, the utility model provides a porous ceramic substrate with a groove, wherein the ceramic substrate is of a tetragonal structure, the ceramic substrate is provided with the groove, the groove is arranged along the height direction of the ceramic substrate, the groove penetrates through the ceramic substrate, and the opening direction of the groove is perpendicular to the height direction of the ceramic substrate;
the first surface of the ceramic substrate is provided with a first blind hole, the second surface of the ceramic substrate is provided with a second blind hole, the first surface and the second surface are vertically arranged, and the aperture of the first blind hole is larger than that of the second blind hole;
the first blind hole comprises a first sub blind hole and a second sub blind hole, the first sub blind hole is far away from the center point of the ceramic substrate, and the second sub blind hole is near to the center point of the ceramic substrate; the distance between the first sub blind holes and the second surface is equal to the sum of the radius of the first sub blind holes and the depth of the second blind holes.
Further, the grooves comprise a first groove and a second groove, the first groove is arranged between the first sub blind holes and the second sub blind holes, the number of the second sub blind holes is multiple, and the second groove is arranged between the second sub blind holes.
Further, the first groove and the second groove are both U-shaped grooves, and the sizes of the first groove and the second groove are the same.
Further, two first sub blind holes are symmetrically arranged at two ends of the first surface; the number of the first grooves is two, and the connecting lines of the corresponding center points of the two first sub blind holes pass through the center point of the first surface.
Further, the number of the second blind sub-holes is three, and the three second blind sub-holes are arranged between the two first blind sub-holes; the connecting lines of the central points corresponding to the three second sub blind holes respectively form a triangular structure; the second grooves are arranged among the three second sub blind holes.
Further, the first sub blind holes are communicated with the second blind holes, and the second blind holes are arranged at the center of the first surface.
Further, the number of the second blind holes is two, and the two second blind holes are respectively arranged on the two first surfaces opposite to the ceramic substrate.
Further, the aperture of the first sub blind hole and the aperture of the second sub blind hole are both 1.0+/-0.02 mm, and the aperture of the second blind hole is 0.44+/-0.02 mm.
Further, the height of the ceramic substrate is 6.0+/-0.02 mm, and the distance between the second blind hole and the first surface is 3.0+/-0.02 mm.
Further, the depth of the first blind hole is 2.25+/-0.02 mm, and the depth of the second blind hole is 2.17+/-0.02 mm.
The beneficial effects of the utility model are as follows:
(1) The porous ceramic substrate with the grooves has the characteristics of small volume and light weight, can be used for preparing monoblock dielectric filters, and can effectively reduce the volume of a wireless communication base station;
(2) The porous ceramic substrate with the grooves has the characteristics of low insertion loss, convenient installation and the like, and is widely used in various circuits; the method can be applied to the field of electronic components, for example, used for preparing base stations, small stations, T/R components, radio frequency microwaves, wi-Fi, repeater stations and the like.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a ceramic substrate of the present utility model;
FIG. 2 is a top view of a ceramic substrate provided by the present utility model;
FIG. 3 is a cross-sectional view of a first blind hole provided by the present utility model;
FIG. 4 is a side view of a ceramic substrate provided by the present utility model;
FIG. 5 is a cross-sectional view of a second blind hole provided by the present utility model;
wherein, the reference numerals in the figures correspond to: 1-groove, 11-first groove, 12-second groove, 2-first blind hole, 21-first sub blind hole, 22-second sub blind hole, 3-second blind hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
The utility model discloses a porous ceramic substrate with a groove, wherein the ceramic substrate is of a tetragonal structure, the tetragonal structure comprises a cube and a cuboid, a groove 1 is arranged on the ceramic substrate, the groove 1 is arranged along the height direction of the ceramic substrate, the groove 1 penetrates through the ceramic substrate, and the opening direction of the groove 1 is perpendicular to the height direction of the ceramic substrate; the tetragonal body can be a tetragonal body or a cuboid structure.
The first surface of the ceramic substrate is provided with a first blind hole 2, the second surface of the ceramic substrate is provided with a second blind hole 3, the first surface and the second surface are vertically arranged, and the aperture of the first blind hole 2 is larger than that of the second blind hole 3;
the first blind hole 2 comprises a first sub blind hole 21 and a second sub blind hole 22, the first sub blind hole 21 is far away from the central point of the ceramic substrate, and the second sub blind hole 22 is near to the central point of the ceramic substrate; the distance between the first sub blind hole 21 and the second surface is equal to the sum of the radius of the first sub blind hole 21 and the depth of the second blind hole 3.
Further, the aperture of the first blind hole 2 near the first surface is larger than the aperture of the first blind hole 2 far from the first surface.
Further, the groove 1 includes a first groove 11 and a second groove 12, the first groove 11 is disposed between the first sub blind hole 21 and the second sub blind hole 22, the second sub blind holes 22 are plural, and the second groove 12 is disposed between the second sub blind holes 22.
Further, the first groove 11 and the second groove 12 are both U-shaped grooves, and the first groove 11 and the second groove 12 have the same size.
Further, two first sub blind holes 21 are provided, and the two first sub blind holes 21 are symmetrically arranged at two ends of the first surface; the number of the first grooves 11 is two, and the connecting lines of the corresponding center points of the two first sub-blind holes 21 pass through the center point of the first surface.
Further, the number of the second sub blind holes 22 is three, and the three second sub blind holes 22 are arranged between the two first sub blind holes 21; the connecting lines of the central points corresponding to the three second sub blind holes 22 form a triangle structure; the second recess 12 is disposed between three of the second sub-blind holes 22.
Further, the first sub blind hole 21 is in communication with the second blind hole 3, and the second blind hole 3 is disposed at a center position of the first surface.
Further, two second blind holes 3 are provided, and the two second blind holes 3 are respectively arranged on the two first surfaces opposite to each other of the ceramic substrate.
Further, the aperture of the first sub-blind hole 21 and the aperture of the second sub-blind hole 22 are both 1.0±0.02mm, and the aperture of the second blind hole 3 is 0.44±0.02mm.
Further, the height of the ceramic substrate is 6.0+/-0.02 mm, and the distance between the second blind hole 3 and the first surface is 3.0+/-0.02 mm.
Further, the depth of the first blind hole 2 is 2.25 plus or minus 0.02mm, and the depth of the second blind hole 3 is 2.17 plus or minus 0.02mm.
The porous ceramic substrate with the grooves has the characteristics of small volume and light weight, can be used for preparing monoblock dielectric filters, and can effectively reduce the volume of a wireless communication base station; the method can be applied to the field of electronic components, for example, used for preparing base stations, small stations, T/R components, radio frequency microwaves, wi-Fi, repeater stations and the like.
Example 2
1-5, FIG. 1 is a schematic view showing the structure of a porous ceramic substrate with grooves according to the present embodiment; FIG. 2 is a top view of a ceramic substrate provided by the present utility model; FIG. 3 is a cross-sectional view of a first blind hole provided by the present utility model; FIG. 4 is a side view of a ceramic substrate provided by the present utility model;
FIG. 5 is a cross-sectional view of a second blind hole provided by the present utility model; the utility model discloses a porous ceramic substrate with a groove, wherein the ceramic substrate is of a cuboid structure, a groove 1 is formed in the ceramic substrate, the groove 1 is formed in the height direction of the ceramic substrate, the groove 1 penetrates through the ceramic substrate, and the opening direction of the groove 1 is perpendicular to the height direction of the ceramic substrate; the first surface of the ceramic substrate is provided with a first blind hole 2, the second surface of the ceramic substrate is provided with a second blind hole 3, the first surface is perpendicular to the second surface, the first surface is the upper surface of the ceramic substrate, and the second surface is the side surface of the ceramic substrate; the aperture of the first blind hole 2 is larger than that of the second blind hole 3; the first blind hole 2 comprises a first sub blind hole 21 and a second sub blind hole 22, the first sub blind hole 21 is far away from the central point of the ceramic substrate, and the second sub blind hole 22 is near to the central point of the ceramic substrate; the distance between the first sub blind hole 21 and the second surface is equal to the sum of the radius of the first sub blind hole 21 and the depth of the second blind hole 3. The ceramic substrate has a length of 12.7 + -0.02 mm, a width of 6.0 + -0.02 mm, and a height of 2.5 + -0.02 mm. The distance between the second blind hole 3 and the bottom of the ceramic substrate is 1.34+/-0.02 mm, the distance between the second blind hole 3 and the first surface of the ceramic substrate is 1.34+/-0.02 mm, the first surface is provided with round corners close to the first blind hole 2, the radius of each round corner is 0.1+/-0.02 mm, and the round corners are eight.
In this embodiment of the present disclosure, the groove 1 includes a first groove 11 and a second groove 12, the first groove 11 is disposed between the first sub-blind hole 21 and the second sub-blind hole 22, the second sub-blind holes 22 are plural, and the second groove 12 is disposed between the plural second sub-blind holes 22.
In this embodiment, the first groove 11 and the second groove 12 are both U-shaped grooves, and the first groove 11 and the second groove 12 have the same size.
In the embodiment of the present disclosure, two first sub-blind holes 21 are provided, and the two first sub-blind holes 21 are symmetrically disposed at two ends of the first surface; the number of the first grooves 11 is two, and the connecting lines of the corresponding center points of the two first sub-blind holes 21 pass through the center point of the first surface. In the embodiment of the present disclosure, the number of the second sub-blind holes 22 is three, and three of the second sub-blind holes 22 are disposed between two of the first sub-blind holes 21; the connecting lines of the central points corresponding to the three second sub blind holes 22 form a triangle structure; the second recess 12 is disposed between three of the second sub-blind holes 22. The number of the first grooves 11 is two, the openings of the two first grooves 11 deviate from the center of the first surface, the openings of the second grooves 12 deviate from the center of the first surface, the first grooves 11 and the second grooves 12 are arranged on two long sides of the first surface, and the openings of the first grooves 11 and the second grooves 12 are opposite. The depth of the first groove 11 is smaller than the width of the first surface and the depth of the second groove 12 is smaller than the width of the first surface. The distances between the two first grooves 11 and the second groove 12 are equal; the length of the first surface is 12.7 + -0.02 mm, and the width of the first surface is 6.0 + -0.02 mm. The side of the bottom arc of the first groove 11 is 0.3 + -0.02 mm. The distance between the bottom of the first groove 11 and the long side of the first surface is 2.0 plus or minus 0.02mm, the distance between the first sub blind hole 21 and the long side of the first surface is 3.0 plus or minus 0.02mm, and the distance between the second sub blind hole 22 close to the first sub blind hole 21 and the long side of the first surface is 3.8 plus or minus 0.02mm; as shown in FIG. 2, the distances between the five sub blind holes and the right wide edge of the first surface are respectively 11.5+/-0.02 mm, 8.45+/-0.02 mm, 6.2+/-0.02 mm, 4.15+/-0.02 mm and 1.25+/-0.02 mm from left to right; the distance between the two sides of the three grooves and the right wide side of the first surface is respectively 10+/-0.02 mm, 9.3+/-0.02 mm (leftmost groove), 6.7+/-0.02 mm, 6.0+/-0.02 mm (middle groove), 3.3+/-0.02 mm and 2.6+/-0.02 mm (rightmost groove).
As shown in fig. 2, the distances between the five sub blind holes and the long side below the first surface are 4.2 plus or minus 0.02mm, 3.8 plus or minus 0.02mm, 3.0 plus or minus 0.02mm and 1.65 plus or minus 0.02mm respectively from top to bottom; the distances between the bottoms of the three grooves and the long side below the first surface are 3.3 plus or minus 0.02mm (leftmost groove), 2.0 plus or minus 0.02mm (middle groove), and 2.0 plus or minus 0.02mm (rightmost groove), respectively.
In the embodiment of the present disclosure, the first sub-blind hole 21 is in communication with the second blind hole 3, and the second blind hole 3 is disposed at a central position of the first surface.
In this embodiment of the present disclosure, two second blind holes 3 are provided, and the two second blind holes 3 are respectively disposed on two first surfaces opposite to each other of the ceramic substrate.
In the embodiment of the present disclosure, the aperture of the first blind sub-hole 21 and the aperture of the second blind sub-hole 22 are both 1.0±0.02mm, and the aperture of the second blind hole 3 is 0.44±0.02mm. The distance between the second blind hole 3 and the bottom of the ceramic substrate is 3.0+/-0.02 mm, and the distance between the second blind hole 3 and the edge of the ceramic substrate is 1.34+/-0.02 mm.
In the embodiment of the present specification, the height of the ceramic substrate is 6.0±0.02mm, and the distance between the second blind hole 3 and the first surface is 3.0±0.02mm.
In the present embodiment, the depth of the first sub blind hole 21 is 2.25±0.02mm, and the depth of the second sub blind hole 22 is 2.23±0.02mm. The depth of the second blind hole 3 is 2.17+/-0.02 mm.
The performance parameters of the dielectric filter corresponding to the ceramic substrate of this embodiment are shown in table 1 below:
TABLE 1
Wherein, center Frequency (Center Frequency): the frequency f0 of the filter passband is generally f0= (f1+f2)/2, and f1 and f2 are the side frequency points of the left and right relative drops of the bandpass or bandstop filter by 1dB or 3 dB. The narrowband filter often calculates the passband bandwidth with the insertion loss minimum point as the center frequency.
Passband bandwidth: refer to the spectral width that needs to be passed, bw= (f 2-f 1). f1 and f2 are based on the insertion loss at the center frequency f 0.
Insertion Loss (Insertion Loss): the attenuation caused by the filter to the original signal in the circuit is characterized by loss at the center or cut-off frequency, as the full band interpolation loss is emphasized.
In-band Ripple (Passband Ripple): the amount of variation in insertion loss in the passband with frequency. The in-band ripple within the 1dB bandwidth is 1dB.
Stop band suppression degree: and measuring an important index of the filter selection performance. The higher the index, the better the out-of-band interferer rejection.
It can be seen that the dielectric filter of this embodiment has good filtering performance.
The beneficial effects of the utility model are as follows:
(1) The porous ceramic substrate with the grooves has the characteristics of small volume and light weight, can be used for preparing monoblock dielectric filters, and can effectively reduce the volume of a wireless communication base station;
(2) The porous ceramic substrate with the grooves has the characteristics of low insertion loss, convenient installation and the like, and is widely used in various circuits; the method can be applied to the field of electronic components, for example, used for preparing base stations, small stations, T/R components, radio frequency microwaves, wi-Fi, repeater stations and the like.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.
Claims (10)
1. The porous ceramic substrate with the grooves is characterized in that the ceramic substrate is of a tetragonal structure, grooves (1) are formed in the ceramic substrate, the grooves (1) are formed in the height direction of the ceramic substrate, the grooves (1) penetrate through the ceramic substrate, and the opening direction of the grooves (1) is perpendicular to the height direction of the ceramic substrate;
the ceramic substrate comprises a ceramic substrate body, wherein a first blind hole (2) is formed in the first surface of the ceramic substrate body, a second blind hole (3) is formed in the second surface of the ceramic substrate body, the first surface is perpendicular to the second surface, and the aperture of the first blind hole (2) is larger than that of the second blind hole (3);
the first blind hole (2) comprises a first sub blind hole (21) and a second sub blind hole (22), the first sub blind hole (21) is far away from the center point of the ceramic substrate, and the second sub blind hole (22) is near the center point of the ceramic substrate; the distance between the first sub blind hole (21) and the second surface is equal to the sum of the radius of the first sub blind hole (21) and the depth of the second blind hole (3).
2. Ceramic substrate according to claim 1, characterized in that the recess (1) comprises a first recess (11) and a second recess (12), the first recess (11) being arranged between the first sub-blind hole (21) and the second sub-blind hole (22), the second sub-blind hole (22) being a plurality, the second recess (12) being arranged between a plurality of the second sub-blind holes (22).
3. Ceramic substrate according to claim 2, characterized in that the first recess (11) and the second recess (12) are both U-shaped recesses, the dimensions of the first recess (11) and the second recess (12) being identical.
4. A ceramic substrate according to claim 3, wherein the number of the first sub blind holes (21) is two, and the two first sub blind holes (21) are symmetrically arranged at two ends of the first surface; the number of the first grooves (11) is two, and the connecting lines of the corresponding center points of the two first sub blind holes (21) pass through the center point of the first surface.
5. Ceramic substrate according to claim 4, characterized in that said second sub-blind holes (22) are three, three of said second sub-blind holes (22) being arranged between two of said first sub-blind holes (21); the connecting lines of the corresponding center points of the three second sub blind holes (22) form a triangle structure; the second grooves (12) are arranged among the three second sub blind holes (22).
6. Ceramic substrate according to claim 1, characterized in that the first sub-blind hole (21) is in communication with the second blind hole (3), the second blind hole (3) being arranged in a central position of the first surface.
7. Ceramic substrate according to claim 1, characterized in that said second blind holes (3) are two, and that said two second blind holes (3) are provided on said two opposite first surfaces of said ceramic substrate, respectively.
8. Ceramic substrate according to claim 1, characterized in that the aperture of the first sub-blind hole (21) and the aperture of the second sub-blind hole (22) are both 1.0±0.02mm, and the aperture of the second blind hole (3) is 0.44±0.02mm.
9. Ceramic substrate according to claim 1, characterized in that the height of the ceramic substrate is 6.0±0.02mm, and the distance of the second blind hole (3) from the first surface is 3.0±0.02mm.
10. Ceramic substrate according to claim 9, characterized in that the depth of the first blind hole (2) is 2.25±0.02mm and the depth of the second blind hole (3) is 2.17±0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344204.4U CN220774696U (en) | 2023-08-30 | 2023-08-30 | Porous ceramic substrate with grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322344204.4U CN220774696U (en) | 2023-08-30 | 2023-08-30 | Porous ceramic substrate with grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220774696U true CN220774696U (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322344204.4U Active CN220774696U (en) | 2023-08-30 | 2023-08-30 | Porous ceramic substrate with grooves |
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| Country | Link |
|---|---|
| CN (1) | CN220774696U (en) |
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2023
- 2023-08-30 CN CN202322344204.4U patent/CN220774696U/en active Active
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