CN204103877U - A kind of three hole Ceramic Dielectric Filter - Google Patents
A kind of three hole Ceramic Dielectric Filter Download PDFInfo
- Publication number
- CN204103877U CN204103877U CN201420471714.6U CN201420471714U CN204103877U CN 204103877 U CN204103877 U CN 204103877U CN 201420471714 U CN201420471714 U CN 201420471714U CN 204103877 U CN204103877 U CN 204103877U
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- Prior art keywords
- hole
- silver bullion
- capacitor
- resonant tank
- dielectric filter
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- 239000000919 ceramic Substances 0.000 title claims abstract description 28
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 71
- 229910052709 silver Inorganic materials 0.000 claims description 71
- 239000004332 silver Substances 0.000 claims description 71
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000007639 printing Methods 0.000 claims description 10
- 238000005457 optimization Methods 0.000 abstract description 7
- 230000001629 suppression Effects 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000003854 Surface Print Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Filters And Equalizers (AREA)
Abstract
The utility model discloses a kind of three hole Ceramic Dielectric Filter, the design of through hole in ceramic block inside, by level design in a row before, makes triangular design into, and namely three through holes are not on a horizontal line.Because three holes are all direct neighbor each other, coupling can be realized each other, solve the design limitations of three hole Ceramic Dielectric Filter of the prior art.A trap wave point can be produced on low limit, to realize the suppression optimization at some Frequency points simultaneously.
Description
Technical field
The utility model relates to wave filter technology field, relates to a kind of three hole Ceramic Dielectric Filter specifically.
Background technology
The design key of dielectric filter is the design of ceramic matrix circuit face printed circuit, its diversified design can realize multiple different filter characteristic, the ceramic matrix of existing dielectric filter inner due to circuit design need all need to offer the hole that quantity do not wait, the circuit designed on hole end surface prints, to realize the electrical characteristic between Kong Yukong, but some filters due to characteristic need also need to there is coupling between the non-conterminous hole of requirement, to realize the specific electric property of one.
Be illustrated in figure 1 a kind of three hole Ceramic Dielectric Filter of the prior art, because three holes are all that side-by-side horizontal is arranged each other, realize coupling each other and ceramic matrix must be relied on to be assembled in above PCB realize.As shown in Figure 2, its performance plot as shown in Figure 3 for its equivalent circuit diagram.Owing to having the interference in other hole between non-conterminous hole, so generally poorly realize, cause certain limitation to the design of dielectric filter, such as cannot realize the suppression optimization at some Frequency points.
Utility model content
The utility model aims to provide a kind of three hole Ceramic Dielectric Filter that can solve the design limitations be coupled between three holes.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of three hole Ceramic Dielectric Filter, comprise electrode surface, circuit printing surface and capacitor and inductor resonant tank, described electrode surface welds with pcb board, and described electrode surface is provided with input port and output port; Described capacitor and inductor resonant tank is the cylinder with a through hole, a silver bullion on the equal corresponding described circuit printing surface of through hole described in each.
The quantity of wherein said capacitor and inductor resonant tank is three, be respectively the first capacitor and inductor resonant tank, the second capacitor and inductor resonant tank, the 3rd capacitor and inductor resonant tank, described first capacitor and inductor resonant tank is the cylinder with the first through hole, described second capacitor and inductor resonant tank is the cylinder with the second through hole, and described 3rd capacitor and inductor resonant tank is the cylinder with third through-hole.
Described circuit printing surface comprises the first silver bullion, second silver bullion, 3rd silver bullion, described first silver bullion and described second silver bullion side-by-side horizontal are arranged, described 3rd silver bullion is arranged on the front end of described first silver bullion and described second silver bullion, described first silver bullion connects described first through hole and passes through described first through hole ground connection, described second silver bullion connects described second through hole and passes through described second through hole ground connection, described 3rd silver bullion connects described third through-hole and by described third through-hole ground connection, described first through hole, shape triangular in shape between described second through hole and the center of circle of described third through-hole, described first through hole, described second through hole is connected by signal with described third through-hole.
Distance further between described 3rd silver bullion and described first silver bullion equals the distance between described 3rd silver bullion and described second silver bullion.
Further described first through hole, between described second through hole and the center of circle of described third through-hole in equilateral triangle shape.
Adopt technique scheme, the utility model at least comprises following beneficial effect:
Three hole Ceramic Dielectric Filter described in the utility model, the design of through hole in ceramic block inside, by level design in a row before, makes triangular design into, and namely three through holes are not on a horizontal line.Because three holes are all direct neighbor each other, coupling can be realized each other, solve the design limitations of three hole Ceramic Dielectric Filter of the prior art.A trap wave point can be produced on low limit, to realize the suppression optimization at some Frequency points simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of three hole Ceramic Dielectric Filter of the prior art;
Fig. 2 is the circuit theory diagrams of three hole Ceramic Dielectric Filter of the prior art;
Fig. 3 is the performance plot of three hole Ceramic Dielectric Filter of the prior art;
Fig. 4 is the structural representation of three hole Ceramic Dielectric Filter described in the utility model;
Fig. 5 is the circuit theory diagrams of three hole Ceramic Dielectric Filter described in the utility model;
Fig. 6 is the performance plot of three hole Ceramic Dielectric Filter described in the utility model.
Wherein: 1. electrode surface, 2. circuit printing surface, 11. input ports, 12. output ports, 21. first silver bullions, 22. second silver bullions, 23. the 3rd silver bullions, 211. first through holes, 212. second through holes, 213. third through-holes.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 4, for meeting a kind of three hole Ceramic Dielectric Filter of the present utility model, comprise electrode surface 1, circuit printing surface 2 and capacitor and inductor resonant tank, described electrode surface 1 welds with pcb board, and described electrode surface 1 is provided with input port 11 and output port 12; Described capacitor and inductor resonant tank is the cylinder with a through hole, a silver bullion on the equal corresponding described circuit printing surface 2 of through hole described in each.
The quantity of wherein said capacitor and inductor resonant tank is three, be respectively the first capacitor and inductor resonant tank, the second capacitor and inductor resonant tank, the 3rd capacitor and inductor resonant tank, described first capacitor and inductor resonant tank is the cylinder with the first through hole 211, described second capacitor and inductor resonant tank is the cylinder with the second through hole 212, and described 3rd capacitor and inductor resonant tank is the cylinder with third through-hole 213.
Described circuit printing surface 2 comprises the first silver bullion 21, second silver bullion 22, 3rd silver bullion 23, described first silver bullion 21 and described second silver bullion 22 side-by-side horizontal are arranged, described 3rd silver bullion 23 is arranged on the front end of described first silver bullion 21 and described second silver bullion 22, described first silver bullion 21 connects described first through hole 211 and by described first through hole 211 ground connection, described second silver bullion 22 connects described second through hole 212 and by described second through hole 212 ground connection, described 3rd silver bullion 23 connects described third through-hole 213 and by described third through-hole 213 ground connection, described first through hole 211, shape triangular in shape between described second through hole 212 and the center of circle of described third through-hole 213, described first through hole 211, described second through hole 212 is connected by signal with described third through-hole 213.
Referring to Fig. 5, is the circuit theory diagrams of Fig. 4, comprising the first capacitor and inductor resonant tank LC1, the second capacitor and inductor resonant tank LC2, the 3rd capacitor and inductor resonant tank LC3.Ground connection after described first capacitor and inductor resonant tank LC1 connects with the first electric capacity C1, ground connection after described second capacitor and inductor resonant tank LC2 connects with described first electric capacity C1, the second electric capacity C2 and the 5th electric capacity C5, ground connection after described 3rd capacitor and inductor resonant tank LC3 connects with described first electric capacity C1 and described second electric capacity C2, described first electric capacity C1 is connected with described input port 11, and described 6th electric capacity C6 is connected with described output port 12.Output port 12 in input port 11, P2 corresponding diagram 4 in P1 in Fig. 5 and corresponding diagram 4.
During work, refer to Fig. 4 and Fig. 5, electrode surface 1 welds with pcb board, and described first silver bullion 21 and described second silver bullion 22 are connected with the described input port 11 of signal and described output port 12 respectively.Signal first enters described first silver bullion 21 from described input port 11.At this, signal is divided into three tunnels, wherein described first through hole 211 ground connection of the first via by being connected with described first silver bullion 21; Second tunnel arrives described 3rd silver bullion 23, and between described first silver bullion 21 and described 3rd silver bullion 23, form described second electric capacity C2, the size of described second electric capacity C2 is determined by the distance between described first silver bullion 21 and described 3rd silver bullion 23; 3rd tunnel arrives described second silver bullion 22, and between described first silver bullion 21 and described second silver bullion 22, form described 3rd electric capacity C3, the size of described 3rd electric capacity C3 is determined by the distance between described first silver bullion 21 and described second silver bullion 22.After arriving described 3rd silver bullion 23, signal divides two-way, lead up to described third through-hole 213 ground connection corresponding with described 3rd silver bullion 23, another road arrives described second silver bullion 22, between described second silver bullion 22 and described 3rd silver bullion 23, form described 5th electric capacity C5, the size of described 5th electric capacity C5 is determined by the distance between described second silver bullion 22 and described 3rd silver bullion 23.Arrive described second silver bullion 22 and be divided into two-way, lead up to described second through hole 212 ground connection corresponding with described second silver bullion 22, described output port 12 of separately leading up to exports, and forms a signal and flows to complete filter circuit, have the advantage that standing wave is little while passband is wide.
Preferably described first through hole 211, between described second through hole 212 and the center of circle of described third through-hole 213 in equilateral triangle shape.Between adjacent silver bullion, the size of distance determines the size of electric capacity, therefore preferably the capacitance of described second electric capacity C2 and described 5th electric capacity C5 is 3.7 pF, and the capacitance of described 3rd electric capacity C3 is 1.144 pF.
As shown in Figure 6, adopt three hole Ceramic Dielectric Filter described in the present embodiment, a trap wave point can be produced on low limit, to realize the suppression optimization at some Frequency points.Adopt can to obtain during numerical value described above to obtain when Frequency point is 0.355 GHz and suppress effect of optimization preferably.By obtaining different suppression effect of optimizations to the setting of its different numerical value, the present embodiment is not construed as limiting this, and those skilled in the art should know.
To sum up, the design of through hole in ceramic block inside, by level design in a row before, makes triangular design into, and namely three through holes are not on a horizontal line.Because three holes are all direct neighbor each other, coupling can be realized each other, solve the design limitations of three hole Ceramic Dielectric Filter of the prior art.A trap wave point can be produced on low limit, to realize the suppression optimization at some Frequency points simultaneously.
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 (3)
1. three hole Ceramic Dielectric Filter, is characterized in that, comprise electrode surface, circuit printing surface and capacitor and inductor resonant tank, described electrode surface welds with pcb board, and described electrode surface is provided with input port and output port; Described capacitor and inductor resonant tank is the cylinder with a through hole, a silver bullion on the equal corresponding described circuit printing surface of through hole described in each;
The quantity of wherein said capacitor and inductor resonant tank is three, be respectively the first capacitor and inductor resonant tank, the second capacitor and inductor resonant tank, the 3rd capacitor and inductor resonant tank, described first capacitor and inductor resonant tank is the cylinder with the first through hole, described second capacitor and inductor resonant tank is the cylinder with the second through hole, and described 3rd capacitor and inductor resonant tank is the cylinder with third through-hole;
Described circuit printing surface comprises the first silver bullion, second silver bullion, 3rd silver bullion, described first silver bullion and described second silver bullion side-by-side horizontal are arranged, described 3rd silver bullion is arranged on the front end of described first silver bullion and described second silver bullion, described first silver bullion connects described first through hole and passes through described first through hole ground connection, described second silver bullion connects described second through hole and passes through described second through hole ground connection, described 3rd silver bullion connects described third through-hole and by described third through-hole ground connection, described first through hole, shape triangular in shape between described second through hole and the center of circle of described third through-hole, described first through hole, described second through hole is connected by signal with described third through-hole.
2. three hole Ceramic Dielectric Filter as claimed in claim 1, is characterized in that: the distance between described 3rd silver bullion and described first silver bullion equals the distance between described 3rd silver bullion and described second silver bullion.
3. three hole Ceramic Dielectric Filter as claimed in claim 2, is characterized in that: described first through hole, between described second through hole and the center of circle of described third through-hole in equilateral triangle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471714.6U CN204103877U (en) | 2014-08-20 | 2014-08-20 | A kind of three hole Ceramic Dielectric Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471714.6U CN204103877U (en) | 2014-08-20 | 2014-08-20 | A kind of three hole Ceramic Dielectric Filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103877U true CN204103877U (en) | 2015-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420471714.6U Active CN204103877U (en) | 2014-08-20 | 2014-08-20 | A kind of three hole Ceramic Dielectric Filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204103877U (en) |
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2014
- 2014-08-20 CN CN201420471714.6U patent/CN204103877U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for 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 | ||
| 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. |
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| CP02 | Change in the address 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. |