CN204103874U - A kind of split type filter based on aluminum oxide substrate - Google Patents
A kind of split type filter based on aluminum oxide substrate Download PDFInfo
- Publication number
- CN204103874U CN204103874U CN201420471661.8U CN201420471661U CN204103874U CN 204103874 U CN204103874 U CN 204103874U CN 201420471661 U CN201420471661 U CN 201420471661U CN 204103874 U CN204103874 U CN 204103874U
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- Prior art keywords
- aluminum oxide
- oxide substrate
- block
- conductive material
- resonator
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000000758 substrate Substances 0.000 title claims abstract description 66
- 239000004020 conductor Substances 0.000 claims abstract description 67
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052709 silver Inorganic materials 0.000 claims abstract description 17
- 239000004332 silver Substances 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 3
- 238000005476 soldering Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
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Abstract
The utility model discloses a kind of split type filter based on aluminum oxide substrate, comprise PCB surface plate, resonator, aluminum oxide substrate, patch capacitor.Aluminum oxide substrate is provided with upper and lower surface, by conductive silver layer, the perfection of the upper and lower surface of aluminum oxide substrate is connected and conducting, compared to being also applicable to producing in enormous quantities by plain conductor conducting while ensureing to realize enough large input and output electric capacity, easy to operate, fraction defective is low, save man-hour, considerably reduce production cost.And plain conductor in use exists the possibility of fracture, the use of described conducting silver layer obviously can extend the life-span of filter.At the direct soldering surface mounted formula electric capacity in aluminum oxide substrate surface, by the size regulating aluminum oxide substrate to change electric capacity, realize the fine setting to Filter specification, solve the problem that aluminum oxide substrate capacitance is too little.
Description
Technical field
The utility model belongs to wave filter technology field, relates to a kind of split type filter based on aluminum oxide substrate specifically.
Background technology
At present, the method for designing of split type dielectric filter has two kinds, and one uses chip inductor electric capacity direct-assembling on PCB pad, and another uses aluminum oxide substrate to realize.
But these two kinds of modes all existing defects, are specially:
The device capacitor inductance value size that the first situation uses is fixed, and can not debug;
The size of the aluminum oxide substrate that second case uses by regulating the distribution size of electric conducting material of thereon to carry out control capacitance, but the capacitance that aluminum oxide substrate is formed is limited, cannot meet the demands time larger for the capacity ratio needed for the filter correspondence that passband is wider.
In view of this, someone proposes a kind of split type filter, comprising: PCB surface plate, several the separate resonators welded with PCB surface plate, the aluminum oxide substrate be arranged on PCB surface plate.It is in order to realize the enough large and function that can finely tune of filter input and output, employ a wire upper surface of aluminum oxide substrate is connected, although such design can realize larger input and output, but in large batch of explained hereafter, be not too applicable to volume production, in assembling link, the installation of wire is difficult to operation, brings a lot of trouble to production in enormous quantities.
Utility model content
The utility model aim to provide a kind of both can realize enough large input and output electric capacity while also can be applicable to produce in enormous quantities the split type filter based on aluminum oxide substrate.
For solving the problems of the technologies described above, the technical solution of the utility model is:
Based on a split type filter for aluminum oxide substrate, comprise PCB surface plate, resonator, aluminum oxide substrate, patch capacitor.
Wherein said resonator comprises multiple and parallel with one another, and multiple described resonator is welded on described PCB surface plate, and described resonator is provided with guide hole, is provided with plain conductor in described guide hole, and described several separate resonators form filter circuit.
Described aluminum oxide substrate is arranged on described PCB surface plate, and described aluminum oxide substrate is disposed adjacent with described resonator, and described aluminum oxide substrate is provided with upper and lower surface.
Described aluminum oxide substrate upper surface is provided with multiple first block of conductive material corresponding with multiple described resonator, connected by patch capacitor between described first block of conductive material, described first block of conductive material connects the resonator of described correspondence by plain conductor, be positioned on the outer angular direction in two described first block of conductive material of described aluminum oxide substrate upper surface end positions and be respectively equipped with the 3rd block of conductive material, described 3rd block of conductive material departs from described first block of conductive material, connected by patch capacitor between described first block of conductive material and the 3rd block of conductive material, described 3rd block of conductive material is provided with through hole.
Described aluminum oxide substrate lower surface is provided with two the second block of conductive material being positioned at described aluminum oxide substrate two ends, and described second block of conductive material offers the through hole through with described 3rd block of conductive material, described through-hole inner surface is coated with conductive silver layer.
Described PCB surface plate is provided with input interface and output interface, and described second block of conductive material is connected with the described input interface on described PCB surface plate and described output interface.Described second block of conductive material is connected by welding manner with the described input interface on described PCB surface plate and described output interface further.
Adopt technique scheme, the utility model at least comprises following beneficial effect:
1. the split type filter based on aluminum oxide substrate described in the utility model, by described conductive silver layer, the perfection of the upper and lower surface of described aluminum oxide substrate is connected and conducting, compared to being also applicable to producing in enormous quantities by plain conductor conducting while ensureing to realize enough large input and output electric capacity, easy to operate, fraction defective is low, save man-hour, considerably reduce production cost.And plain conductor in use exists the possibility of fracture, the use of described conducting silver layer obviously can extend the life-span of filter.
2. the split type filter based on aluminum oxide substrate described in the utility model, owing to there being conductive silver layer, aluminum oxide substrate upper and lower surface is connected, the electric capacity that the size of input and output electric capacity can be formed by original upper and lower surface electric conducting material changes the SMD electric capacity being directly welded on the upper right corner, upper left into, so the size of its value is unrestricted, some passband standing internal waves are required that the optimization of high performance of filter can play good effect.
3. the split type filter based on aluminum oxide substrate described in the utility model, at the direct soldering surface mounted formula electric capacity in described aluminum oxide substrate surface, by the size regulating aluminum oxide substrate to change electric capacity, realize the fine setting to Filter specification, solve the problem that aluminum oxide substrate capacitance is too little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the split type filter based on aluminum oxide substrate that the utility model provides;
Fig. 2 a, Fig. 2 b are the design diagram on the upper and lower surface of aluminum oxide substrate that the utility model provides respectively;
Fig. 3 is the paster connection diagram of the aluminum oxide substrate upper surface that the utility model provides;
Fig. 4 is the filter circuit construction figure of the split type filter based on aluminum oxide substrate that the utility model provides.
Wherein: 1.PCB panel, 2. resonator, 3. aluminum oxide substrate, 4. patch capacitor, 5. plain conductor, 31. first block of conductive material, 32. second block of conductive material, 33. the 3rd block of conductive material, 34. through holes.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figures 1 to 4, for meeting a kind of split type filter based on aluminum oxide substrate of the present utility model, PCB surface plate 1, resonator 2, aluminum oxide substrate 3, patch capacitor 4 is comprised.
Wherein said resonator 2 comprises multiple and parallel with one another, and multiple described resonator 2 is welded on described PCB surface plate 1, and described resonator 2 is provided with guide hole, is provided with plain conductor 5 in described guide hole, and described several separate resonators 2 form filter circuit.
Described aluminum oxide substrate 3 is arranged on described PCB surface plate 1, and described aluminum oxide substrate 3 is disposed adjacent with described resonator 2, and described aluminum oxide substrate 3 is provided with upper and lower surface.
Described aluminum oxide substrate 3 upper surface is provided with multiple first block of conductive material 31 corresponding with multiple described resonator 2, connected by patch capacitor 4 between described first block of conductive material 31, described first block of conductive material 31 connects the resonator 2 of described correspondence by plain conductor 5, be positioned on the outer angular direction in two described first block of conductive material 31 of described aluminum oxide substrate 3 upper surface end positions and be respectively equipped with the 3rd block of conductive material 33, described 3rd block of conductive material 33 departs from described first block of conductive material 31, connected by patch capacitor 4 between described first block of conductive material 31 and the 3rd block of conductive material 33, described 3rd block of conductive material 33 is provided with through hole 34.
Described aluminum oxide substrate 3 lower surface is provided with two the second block of conductive material 32 being positioned at described aluminum oxide substrate 3 two ends, described second block of conductive material 32 offers the through hole 34 through with described 3rd block of conductive material 33, described through hole 34 inner surface is coated with conductive silver layer, and the perfection of the upper and lower surface of described aluminum oxide substrate 3 connects and conducting by described conductive silver layer.
Described PCB surface plate 1 is provided with input interface and output interface (fail in accompanying drawing to show, but those skilled in the art should know).Described second block of conductive material 32 is connected with the described input interface on described PCB surface plate 1 and described output interface.
In a specific embodiment: the aluminum oxide substrate 3 having offered through hole 34 before the silver layer of printing upper and lower surface first by drip hole technique, namely, silver slurry is dripped near upper surface or below the limit, hole shown, be positioned on getter device, this getter device is designed with the corresponding suction hole in the described through hole 34 size position offered, impel the silver on limit, hole to starch by the suction of gas and flow into described through hole 34 inwall, reach the object at described through hole 34 coated inner wall silver, before silver slurry is completely not dry, can reach by high temperature the effect being communicated with upper and lower surface by after the silver of a lower surface slurry wiped clean after end, and stability of characteristics, preparation method.Especially compared to being also applicable to producing in enormous quantities by plain conductor 5 conducting while ensureing to realize enough large input and output electric capacity, easy to operate, fraction defective is low, saves man-hour, considerably reduces production cost.And plain conductor in use exists the possibility of fracture, the use of described conducting silver layer obviously can extend the life-span of filter.
Preferably described second block of conductive material 32 is connected by welding manner with the described input interface on described PCB surface plate 1 and described output interface.Preferably the quantity of described first block of conductive material 31 is 4.
Above-mentioned connection, as shown in Figure 3, wherein, in figure, R1, R2, R3, R4 are resonator 2.
In the present embodiment, the above-mentioned element such as resonator 2, described PCB surface plate 1 and described aluminum oxide substrate 3 described in several constitutes filter circuit, as shown in Figure 4, wherein:
Three, centre electric capacity (C2, C3, C4) the corresponding diagram 2a controlling passband width in circuit is welded on aluminum oxide substrate 3 three electric capacity above, upper left above two electric capacity (C1, C5) the corresponding diagram 2a controlling passband standing internal wave size in circuit, the input and output electric capacity in the upper right corner, the electric conducting material can polished with debugging acid when regulating Filter specification above aluminum oxide substrate 3, change the distance between block of conductive material, change capacitance size, to reach the object of fine setting performance of filter.
In the present embodiment, owing to there being conductive silver layer, aluminum oxide substrate 3 upper and lower surface is connected, the electric capacity that the size of input and output electric capacity can be formed by original upper and lower surface electric conducting material changes the SMD electric capacity being directly welded on the upper right corner, upper left into, so the size of its value is unrestricted, some passband standing internal waves are required that the optimization of high performance of filter can play good effect.
The present embodiment, at the direct soldering surface mounted formula electric capacity in described aluminum oxide substrate 3 surface, by the size regulating aluminum oxide substrate 3 to change electric capacity, realizes the fine setting to Filter specification, solves the problem that aluminum oxide substrate 3 capacitance is too little.
Above an embodiment of the present utility model has been described in detail, but described content is only the preferred embodiment that the utility model is created, and can not be considered to for limiting practical range of the present utility model.All any equivalent variations done according to the utility model application range, all should still be within patent covering scope of the present utility model.
Claims (2)
1. based on a split type filter for aluminum oxide substrate, it is characterized in that, comprise PCB surface plate, resonator, aluminum oxide substrate, patch capacitor;
Wherein said resonator comprises multiple and parallel with one another, and multiple described resonator is welded on described PCB surface plate, and described resonator is provided with guide hole, is provided with plain conductor in described guide hole, and described several separate resonators form filter circuit;
Described aluminum oxide substrate is arranged on described PCB surface plate, and described aluminum oxide substrate is disposed adjacent with described resonator, and described aluminum oxide substrate is provided with upper and lower surface;
Described aluminum oxide substrate upper surface is provided with multiple first block of conductive material corresponding with multiple described resonator, connected by patch capacitor between described first block of conductive material, described first block of conductive material connects the resonator of described correspondence by plain conductor, be positioned on the outer angular direction in two described first block of conductive material of described aluminum oxide substrate upper surface end positions and be respectively equipped with the 3rd block of conductive material, described 3rd block of conductive material departs from described first block of conductive material, connected by patch capacitor between described first block of conductive material and the 3rd block of conductive material, described 3rd block of conductive material is provided with through hole,
Described aluminum oxide substrate lower surface is provided with two the second block of conductive material being positioned at described aluminum oxide substrate two ends, and described second block of conductive material offers the through hole through with described 3rd block of conductive material, described through-hole inner surface is coated with conductive silver layer;
Described PCB surface plate is provided with input interface and output interface, and described second block of conductive material is connected with the described input interface on described PCB surface plate and described output interface.
2., as claimed in claim 1 based on the split type filter of aluminum oxide substrate, it is characterized in that: described second block of conductive material is connected by welding manner with the described input interface on described PCB surface plate and described output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471661.8U CN204103874U (en) | 2014-08-20 | 2014-08-20 | A kind of split type filter based on aluminum oxide substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471661.8U CN204103874U (en) | 2014-08-20 | 2014-08-20 | A kind of split type filter based on aluminum oxide substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103874U true CN204103874U (en) | 2015-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420471661.8U Expired - Lifetime CN204103874U (en) | 2014-08-20 | 2014-08-20 | A kind of split type filter based on aluminum oxide substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204103874U (en) |
-
2014
- 2014-08-20 CN CN201420471661.8U patent/CN204103874U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yadong Inventor after: Chen Rongda Inventor before: Li Junjie Inventor before: Chen Rongda |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI JUNJIE CHEN RONGDA TO: LIU YADONG CHEN RONGDA |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215129, 14, national environmental protection industrial park, 369 deer Road, hi tech Zone, Jiangsu, Suzhou Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATION Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATION Co.,Ltd. Address before: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATION Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 215000 No.65, Chengji Road, Hushuguan Town, high tech Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150114 |
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| CX01 | Expiry of patent term |