CN110867633A - Novel filter - Google Patents
Novel filter Download PDFInfo
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- CN110867633A CN110867633A CN201911048608.0A CN201911048608A CN110867633A CN 110867633 A CN110867633 A CN 110867633A CN 201911048608 A CN201911048608 A CN 201911048608A CN 110867633 A CN110867633 A CN 110867633A
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- China
- Prior art keywords
- stub
- transmission line
- cavity
- coupling transmission
- novel filter
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
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Abstract
The application discloses novel wave filter, which comprises an outer shell, be equipped with the cavity in the shell, the middle part of cavity is equipped with the coupling transmission line, the left and right sides of coupling transmission line is equipped with two stub respectively, be equipped with four connectors on the shell, four the connector is not connected with the one end that the coupling transmission line is connected with four stub respectively, every be equipped with at least one through hole on the stub, the protruding screw rod that runs through the through hole that is equipped with in the cavity bottom, be equipped with the nut on the screw rod. The filter greatly improves the coupling bandwidth of a product by adding the branch stub, and realizes assembly through the through hole and the nut, so that the production efficiency is improved, and the overall isolation is high.
Description
Technical Field
The application relates to the field of filters, in particular to a novel filter.
Background
In modern mobile communication filters, with the arrival of 5G communication, the frequency bands of use of communication systems are increasing, especially increasing to above 5.8GHz, so that the distribution system in a communication room requires that all devices covered by communication must meet the full coverage of all frequency bands of use, i.e. the devices must meet the requirements of ultra wide band, high power capacity and high isolation. The cavity type bridge designed in the prior art is relatively narrow in bandwidth and large in size, brings great trouble to a 5G system in the later period, and improves the product cost.
Disclosure of Invention
The present invention is directed to a novel filter to overcome the deficiencies of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the application discloses novel filter, which comprises an outer shell, be equipped with the cavity in the shell, its characterized in that: the middle part of cavity is equipped with the coupling transmission line, the left and right sides of coupling transmission line is equipped with two stub respectively, be equipped with four connectors on the shell, four the connector is connected with the one end that four stub are not connected with the coupling transmission line respectively, every be equipped with at least one through hole on the stub, the protruding screw rod that runs through the through hole that is equipped with in cavity bottom, be equipped with the nut on the screw rod.
Preferably, in the above-described novel filter, two through holes are provided in each of the stubs.
Preferably, in the above novel filter, an isolation pad covering a connection between the stub and the coupling transmission line is provided in the cavity.
Preferably, in the novel filter, the spacer has a square shape.
Preferably, in the above novel filter, the stub is integrally formed with the coupling transmission line.
Compared with the prior art, the invention has the advantages that:
the filter greatly improves the coupling bandwidth of a product by adding the branch stub, and realizes assembly through the through hole and the nut, so that the production efficiency is improved, and the overall isolation is high.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a novel filter according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, the novel filter in this embodiment includes a housing 1, a cavity 2 is disposed in the housing 1, a coupling transmission line 3 is disposed in the middle of the cavity 2, two stubs 4 are disposed on the left and right sides of the coupling transmission line 3, four connectors 5 are disposed on the housing 1, the four connectors 5 are connected to one ends of the four stubs 4, which are not connected to the coupling transmission line 3, two through holes 401 are disposed on each stub 4, a screw 201 penetrating through the through holes 401 is disposed at the bottom of the cavity 2 in a protruding manner, and a nut 202 is disposed on the screw 201.
Further, the stub 4 is integrally formed with the coupled transmission line 3.
In the technical scheme, the coupling bandwidth of the filter is greatly improved by adding the branch stub, the assembly is realized through the through hole and the nut, the production efficiency is improved, and the overall isolation is high.
In one embodiment, an isolation pad 203 is disposed in the cavity 2 to cover the connection between the stub 4 and the coupling transmission line 3.
Further, the spacer 203 has a square shape.
In the technical scheme, the stability and consistency of the power amplifier are higher through the gasket, and the power amplifier is easier to realize wider bandwidth and bear higher power.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.
Claims (5)
1. The utility model provides a novel filter, includes the shell, be equipped with the cavity in the shell, its characterized in that: the middle part of cavity is equipped with the coupling transmission line, the left and right sides of coupling transmission line is equipped with two stub respectively, be equipped with four connectors on the shell, four the connector is connected with the one end that four stub are not connected with the coupling transmission line respectively, every be equipped with at least one through hole on the stub, the protruding screw rod that runs through the through hole that is equipped with in cavity bottom, be equipped with the nut on the screw rod.
2. A novel filter according to claim 1, characterized in that: and each stub is provided with two through holes.
3. A novel filter according to claim 1, characterized in that: and an isolation gasket covering the connection part of the stub and the coupling transmission line is arranged in the cavity.
4. A novel filter according to claim 3, characterized in that: the spacer is square.
5. A novel filter according to claim 1, characterized in that: the stub is integrally formed with the coupled transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911048608.0A CN110867633A (en) | 2019-10-30 | 2019-10-30 | Novel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911048608.0A CN110867633A (en) | 2019-10-30 | 2019-10-30 | Novel filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110867633A true CN110867633A (en) | 2020-03-06 |
Family
ID=69653197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911048608.0A Pending CN110867633A (en) | 2019-10-30 | 2019-10-30 | Novel filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110867633A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777771Y (en) * | 2004-11-30 | 2006-05-03 | 深圳市信特科技有限公司 | Hybrid electric bridge filter |
| CN200956396Y (en) * | 2006-09-11 | 2007-10-03 | 摩比天线技术（深圳）有限公司 | Broadband strip bandpass filter |
| CN202308241U (en) * | 2011-10-31 | 2012-07-04 | 武汉凡谷电子技术股份有限公司 | High-pass filter with transmission zero |
| CN108155447A (en) * | 2017-12-14 | 2018-06-12 | 南京航空航天大学 | Highly selective, high common mode inhibition and compact-sized second order balance bandpass filter |
| CN208690468U (en) * | 2018-09-21 | 2019-04-02 | 江苏贝孚德通讯科技股份有限公司 | Two road combiner of broadband based on single layer strip lines configuration |
-
2019
- 2019-10-30 CN CN201911048608.0A patent/CN110867633A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777771Y (en) * | 2004-11-30 | 2006-05-03 | 深圳市信特科技有限公司 | Hybrid electric bridge filter |
| CN200956396Y (en) * | 2006-09-11 | 2007-10-03 | 摩比天线技术（深圳）有限公司 | Broadband strip bandpass filter |
| CN202308241U (en) * | 2011-10-31 | 2012-07-04 | 武汉凡谷电子技术股份有限公司 | High-pass filter with transmission zero |
| CN108155447A (en) * | 2017-12-14 | 2018-06-12 | 南京航空航天大学 | Highly selective, high common mode inhibition and compact-sized second order balance bandpass filter |
| CN208690468U (en) * | 2018-09-21 | 2019-04-02 | 江苏贝孚德通讯科技股份有限公司 | Two road combiner of broadband based on single layer strip lines configuration |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200306 |
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| RJ01 | Rejection of invention patent application after publication |