CN107769752A - A kind of multiple channel acousto surface filtering module - Google Patents
A kind of multiple channel acousto surface filtering module Download PDFInfo
- Publication number
- CN107769752A CN107769752A CN201711147108.3A CN201711147108A CN107769752A CN 107769752 A CN107769752 A CN 107769752A CN 201711147108 A CN201711147108 A CN 201711147108A CN 107769752 A CN107769752 A CN 107769752A
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- China
- Prior art keywords
- printed board
- derailing switch
- multiple channel
- filtering module
- component
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Abstract
The invention discloses a kind of multiple channel acousto surface filtering module, including printed board and the component being arranged in printed board, all components are arranged on the same side of printed board, component includes prime derailing switch, rear class derailing switch and SAW filter, n SAW filter is arranged in printed board in two parallel row, prime derailing switch and rear class derailing switch are arranged between two row SAW filters, and n is natural number, and n is more than or equal to 2.Compared with prior art, using the multichannel surface acoustic wave filtration module of the components' placement structure of the present invention, it sufficiently make use of the space of printed board, reduce the area of the printed board needed to use, and it is laid out using one side, thickness is reduced, so as to reduce the volume of multi-channel surface filtration module, realizes the miniaturization of multi-channel surface filtration module.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of multiple channel acousto surface filtering module.
Background technology
With development communication technologies, working electromagnet environment becomes increasingly complex, and can usually be disturbed in communication bandwidth, needs
Broadband is divided into multiple arrowbands to filter out each interference signal.This requires surface acoustic wave filtration module by some sound surfaces
Wave filter is applied in combination.
At present, filtration module typically installs printed board using independent metal cavity is interior, the two-sided mounting related components of printed board
Structure, after being connected by leading-out terminal with external function module, realize corresponding function.It is as shown in figure 3, each in filtration module
Kind component is arranged on the two sides of printed board, and in the prior art, as shown in Fig. 2 various components are all according to signal
Flow to and be laid out successively toward a direction, SAW filter single file is arranged in printed board, by prime derailing switch and rear class
Derailing switch is separately positioned on the both sides of SAW filter, however, filtering mould using the surface acoustic wave of this components' placement
Block product is larger, is unfavorable for realizing the miniaturization of multichannel surface acoustic wave filtration module.
The content of the invention
For deficiencies of the prior art, the technical problem to be solved in the present invention is：How multiple channel acousto is realized
The miniaturization of surface filtering module.
In order to solve the above technical problems, present invention employs following technical scheme：
A kind of multiple channel acousto surface filtering module, including printed board and the component that is arranged in the printed board, it is described all
Component is arranged on the same side of the printed board, and the component includes prime derailing switch, rear class derailing switch and surface acoustic wave
Wave filter, the n SAW filters are arranged in the printed board in two parallel row, the prime derailing switch and institute
State rear class derailing switch to be arranged between the two row SAW filter, n is natural number, and n is more than or equal to 2.
Preferably, the printed board edge is provided with electrical connection hole.
Preferably, the electrical connection hole is semicircle orifice.
Preferably, the component surface is provided with plate muscle shell.
In summary, the invention discloses a kind of multiple channel acousto surface filtering module, including printed board and it is arranged on printing
Component on plate, all components are arranged on the same side of printed board, component include prime derailing switch, rear class derailing switch and
SAW filter, n SAW filter are arranged in printed board in two parallel row, and prime derailing switch and rear class are opened
Close device to be arranged between two row SAW filters, n is natural number, and n is more than or equal to 2.Compared with prior art, using this
The multichannel surface acoustic wave filtration module of the components' placement structure of invention, sufficiently make use of the space of printed board, reduces
The area of the printed board needed to use, and be laid out using one side, thickness is reduced, so as to reduce multi-channel surface filtering mould
The volume of block, realize the miniaturization of multi-channel surface filtration module.
Brief description of the drawings
In order that the purpose, technical scheme and advantage of invention are clearer, the present invention is made into one below in conjunction with accompanying drawing
The detailed description of step, wherein：
Fig. 1 is a kind of printed board top view of multiple channel acousto surface filtering module disclosed by the invention；
Fig. 2 is the printed board top view of multiple channel acousto surface filtering module in the prior art；
Fig. 3 is multiple channel acousto surface filtering module sectional view in the prior art.
The corresponding relation of label and part is in above-mentioned accompanying drawing：Component 1, SAW filter 11, prime switch
Device 12, rear class derailing switch 13, printed board 2, cavity 3, leading-out terminal 4.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, the invention discloses a kind of multiple channel acousto surface filtering module, including printed board 2 and it is arranged on print
Component 1 in making sheet 2, all components 1 are arranged on the same side of printed board 2, component 1 include prime derailing switch 12, after
Level derailing switch 13 and SAW filter 11, n SAW filter 11 are arranged in printed board 2 in two parallel row,
Prime derailing switch 12 and rear class derailing switch 13 are arranged between two row SAW filters 11, and n is natural number, and n is more than or waited
In 2.
Compared with prior art, using the multichannel surface acoustic wave filtration module of the layout structure of component 1 of the invention, fill
The space that make use of printed board 2 divided, the area of the printed board 2 needed to use is reduced, and be laid out using one side, reduced
Thickness, so as to reduce the volume of multi-channel surface filtration module, realize the miniaturization of multi-channel surface filtration module.At this
In the multichannel surface acoustic wave filtration module of disclosure of the invention, cabling back and forth is electrically connected in printed board 2, and cabling can be fully sharp
Intermediate layer, i.e. stereoscopic arrangement can be walked with the characteristics of multilayer cabling with printed board 2.By reasonably designing, for example, printed board 2 is set
Multiple radiofrequency signal layers are counted, rf signal line strictly by 50 ohm of designs, can cause the multichannel surface acoustic wave filter of the present invention
Ripple modular electrical performance remains able to reach design load.
For further optimization above-mentioned technical proposal, the edge of printed board 2 is provided with electrical connection hole.
As shown in figure 3, multichannel surface acoustic wave filtration module of the prior art is screwed, it is necessary to adopt when in use
On complete machine casing, this requires to leave installation operation gap；The connection of leading-out terminal 4 needs manual welding or passes through switching
Head, cable etc. carry out the interconnection between module.Space-consuming, time and effort consuming.
In the present invention, component 1 is all disposed within to the side of printed board 2, and sets and is electrically connected at the edge of printed board 2
Hole, when using multichannel surface acoustic wave filtration module disclosed by the invention, the one side for being not provided with component 1 is grounded, passed through
Electrical connection hole is attached, and so as to realize the surface mount of multichannel surface acoustic wave filtration module, is improving installation effectiveness
The space of occupancy can also be reduced simultaneously.
Semicircle orifice is may be designed to for further optimization above-mentioned technical proposal, electrical equipment connecting hole, so as to further reduce printing
The area of plate 2.
Preferably, the surface of component 1 is provided with plate muscle shell.
In the surface arranging plate muscle shell of component 1, the signal cross-talk in space can be prevented.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although passing through ginseng
According to the preferred embodiments of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
So that various changes are made to it in the form and details, the present invention that is limited without departing from appended claims
Spirit and scope.
Claims (4)
1. a kind of multiple channel acousto surface filtering module, including printed board and the component that is arranged in the printed board, its feature
It is, all components are arranged on the same side of the printed board, and the component includes prime derailing switch, rear class switchs
Device and SAW filter, the n SAW filters are arranged in the printed board in two parallel row, before described
Level derailing switch and the rear class derailing switch are arranged between the two row SAW filter, and n is natural number, and n is more than or waited
In 2.
2. multiple channel acousto surface filtering module as claimed in claim 1, it is characterised in that the printed board edge is provided with electricity
Gas connecting hole.
3. multiple channel acousto surface filtering module as claimed in claim 2, it is characterised in that the electrical equipment connecting hole is semicircle
Hole.
4. the multiple channel acousto surface filtering module as described in claim any one of 1-3, it is characterised in that the component surface
It is provided with plate muscle shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147108.3A CN107769752A (en) | 2017-11-17 | 2017-11-17 | A kind of multiple channel acousto surface filtering module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147108.3A CN107769752A (en) | 2017-11-17 | 2017-11-17 | A kind of multiple channel acousto surface filtering module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107769752A true CN107769752A (en) | 2018-03-06 |
Family
ID=61278841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711147108.3A Pending CN107769752A (en) | 2017-11-17 | 2017-11-17 | A kind of multiple channel acousto surface filtering module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107769752A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1160975B1 (en) * | 2000-06-02 | 2008-05-14 | Research In Motion Limited | A wireless communication system using surface acoustic wave (SAW) second harmonic techniques |
| CN101355348A (en) * | 2008-09-08 | 2009-01-28 | 无锡市好达电子有限公司 | Switch type two-channel SAW filter |
| WO2012079084A2 (en) * | 2010-12-10 | 2012-06-14 | Wispry, Inc. | Mems tunable notch filter frequency automatic control loop systems and methods |
| CN103125078A (en) * | 2010-09-29 | 2013-05-29 | 株式会社村田制作所 | High-frequency module |
-
2017
- 2017-11-17 CN CN201711147108.3A patent/CN107769752A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1160975B1 (en) * | 2000-06-02 | 2008-05-14 | Research In Motion Limited | A wireless communication system using surface acoustic wave (SAW) second harmonic techniques |
| CN101355348A (en) * | 2008-09-08 | 2009-01-28 | 无锡市好达电子有限公司 | Switch type two-channel SAW filter |
| CN103125078A (en) * | 2010-09-29 | 2013-05-29 | 株式会社村田制作所 | High-frequency module |
| WO2012079084A2 (en) * | 2010-12-10 | 2012-06-14 | Wispry, Inc. | Mems tunable notch filter frequency automatic control loop systems and methods |
Non-Patent Citations (3)
| Title |
|---|
| S.A. DOBERSTEIN 等: "A wide-range tunable/switchable low-loss SAW filter", 《2000 IEEE ULTRASONICS SYMPOSIUM. PROCEEDINGS. AN INTERNATIONAL SYMPOSIUM》 * |
| 奚柏清: "《开关电容网络的分析和设计》", 31 October 1992 * |
| 李帅 等: "基于绝缘硅的微环谐振可调谐滤波器", 《光子学报》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201228 Address after: 400060 Chongqing Nanping Nan'an District No. 14 Huayuan Road Applicant after: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO.26 Research Institute Address before: 401332 No.23, Xiyong Avenue, Xiyong micro power park, Shapingba District, Chongqing Applicant before: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION CHONGQING ACOUSTIC-OPTIC-ELECTRONIC Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
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| RJ01 | Rejection of invention patent application after publication |