CN106848513A - A kind of multiplexer - Google Patents
A kind of multiplexer Download PDFInfo
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- CN106848513A CN106848513A CN201710031948.7A CN201710031948A CN106848513A CN 106848513 A CN106848513 A CN 106848513A CN 201710031948 A CN201710031948 A CN 201710031948A CN 106848513 A CN106848513 A CN 106848513A
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- wave 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 present invention relates to technical field of communication equipment, disclose a kind of multiplexer, including body, body is provided with input port and multiple output ports, cavity is provided with body, multiple wave filters are provided with cavity, wave filter includes resonator and the multiple resonators on the bottom wall of resonator, and two adjacent resonators have common wall；Multiplexer also includes feeding network, and feeding network is provided with feed entrance and multiple feed outlets；Input port is connected with feed entrance, and feed outlet is connected with the input of wave filter, and output port is connected with the output end of wave filter.Multi-stage filter being constituted by setting multiple resonators in single resonator so that the small volume of its cavity, and then causing the small volume of multiplexer, metal consumptive material is less, so as to reduce cost；Simultaneously as metallic walls need not be set so that the cavity of multiplexer is easy to process and installation and debugging are simple, so as to reduce further cost.
Description
Technical field
The present invention relates to technical field of communication equipment, more particularly to a kind of multiplexer.
Background technology
At present, existing multiplexer is all to constitute wherein each path filter using coaxial single-chamber singlemode resonance device.For
The filtering performance of lifting multiplexer, it usually needs constitute multistage filtering using multiple coaxial single-chamber singlemode resonance device multi-cavity cascade-connections
Device, carries out multistage filtering, to realize more precipitous and higher Out-of-band rejection requirement.
But, the multistage filtering that the coaxial single-chamber singlemode resonance device multi-cavity cascade-connection of multiple realized using prior art is constituted
Device, because its volume is larger, causes the volume of multiplexer larger, and then causes metal consumptive material more, relatively costly so as to cause；
Simultaneously as needs set metallic walls on the coupling window of adjacent coaxial resonant cavity, cause the cavity processing difficulties of multiplexer
It is relatively costly so as to further result in and installation and debugging are complicated.
The content of the invention
Larger with the volume for solving existing multiplexer it is an object of the invention to provide a kind of multiplexer, cavity processing is tired
The complicated technical problem of difficult and installation and debugging, to reduce its cost.
In order to solve the above-mentioned technical problem, the present invention provides a kind of multiplexer, including body, and the body is provided with input
Port and multiple output ports, are provided with cavity in the body, multiple wave filters are provided with the cavity, and the wave filter includes
Resonator and the multiple resonators on the bottom wall of the resonator, two adjacent resonators have common wall；Institute
Stating multiplexer also includes feeding network, and the feeding network is provided with feed entrance and multiple feed outlets；And the feed
Outlet is one-to-one relation with the wave filter, and the output port is one-to-one relation with the wave filter；Institute
State input port to be connected with the feed entrance, the feed outlet is connected with the input of the wave filter, the output end
Mouth is connected with the output end of the wave filter.
Preferably, the cross section of the resonator is circular or rectangle.
Preferably, when the resonator cross section be rectangle when, multiple resonators bottom one into
Type, and concavo-convex alternate structure is formed on the top of multiple resonators.
Preferably, the input port includes input inner wire and input outer conductor, the input inner wire set
In the input outer conductor, the input inner wire is connected on the input of the wave filter, the input outer conductor
Connect on the outer wall of the body；The output port includes output inner wire and output outer conductor, the output inner wire set
In the output outer conductor, the output inner wire is connected in the output end of the wave filter, the output outer conductor
It is connected on the outer wall of the body.
Preferably, the feed outlet is connected with the resonator of the input end of the wave filter, the output
Port is connected with the resonator of the output of the wave filter.
Preferably, the wave filter also includes two feed metal posts on the bottom wall of the resonator,
, located at the input end of the wave filter, another described feed metal post is located at the wave filter for one feed metal post
Output；The feed outlet is connected with a feed metal post, the output port and another described feed
Metal column is connected.
Preferably, the feeding network includes trunk and multiple branches, and one end of the trunk is provided with node,
One end of the branch is connected on the node；The feed entrance is described to feed out on the other end of the trunk
Mouth is on the other end of the branch.
Preferably, the feeding network is T-shaped, and the feed entrance is located at the vertical section of the feeding network
On end, multiple feed outlets are on the horizontal segment of the feeding network.
Preferably, the feeding network is in-line, and the feed entrance is located at one end of the feeding network
On, multiple feed outlets are on the feeding network.
Preferably, the resonator is two.
The present invention provides a kind of multiplexer, including body, and body is provided with input port and multiple output ports, in body
Cavity is provided with, multiple wave filters are provided with cavity, wave filter includes resonator and the multiple resonance on the bottom wall of resonator
Device, two adjacent resonators have common wall；Multiplexer also include feeding network, feeding network be provided with feed entrance and
Multiple feed outlet；Input port with feed entrance be connected, feed outlet be connected with the input of wave filter, output port and filter
The output end connection of ripple device.Multi-stage filter is constituted by setting multiple resonators in single resonator so that compared to many
The multi-stage filter that individual single-chamber Single-mode Resonator cascade is constituted, the volume of its cavity is greatly reduced, and then causes the body of multiplexer
Product is smaller, and metal consumptive material is less, so as to reduce cost；Simultaneously as now wave filter only one of which resonator, in the absence of chamber
Mode Coupling between body, therefore metallic walls need not be set so that the cavity of the multiplexer is easy to process and installation and debugging are simple
It is single, so as to reduce further cost.
Brief description of the drawings
Fig. 1 is the structural representation of the duplexer of the embodiment of the present invention one；
Fig. 2 is the fundamental diagram of the duplexer of the embodiment of the present invention one；
Fig. 3 is the structural representation of the duplexer of the embodiment of the present invention two；
Fig. 4 is the structural representation of the duplexer of the embodiment of the present invention three；
Fig. 5 is the structural representation of the duplexer of the embodiment of the present invention four；
Fig. 6 is the structural representation of the duplexer of the embodiment of the present invention five；
Fig. 7 is the structural representation of the duplexer of the embodiment of the present invention six.
Wherein, 1, body；11st, cavity；111st, resonator；112nd, common wall；2nd, input port；21st, it is input into inner wire；
22nd, it is input into outer conductor；3rd, output port；31st, inner wire is exported；32nd, outer conductor is exported；4th, wave filter；41st, resonator；42nd, present
Electric metal post；5th, feeding network；51st, trunk；52nd, branch.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
Embodiment one
As shown in figure 1, a kind of multiplexer of the preferred embodiment of the present invention, including body 1, the body 1 is provided with input
Port 2 and multiple output ports 3, are provided with cavity 11, the cavity 11 in the body 1 and are provided with multiple wave filters 4, the filter
Ripple device 4 includes resonator 111 and the multiple resonators 41 on the bottom wall of the resonator 111, and adjacent two are described humorous
Chamber 111 shake with common wall 112；The multiplexer also include feeding network 5, the feeding network 5 be provided with feed entrance with
And multiple feed outlets；And the feed outlet and the wave filter 4 are one-to-one relation, the output port 3 and institute
Wave filter 4 is stated for one-to-one relation；The input port 2 with it is described feed entrance be connected, it is described feed export with it is described
The input connection of wave filter 4, the output port 3 is connected with the output end of the wave filter 4.
Wherein, the input of the wave filter 4 is located at the porch of the resonator 111, the output end of the wave filter 4
Located at the exit of the resonator 111.
In embodiments of the present invention, constituted by setting multiple resonators 41 in the single resonator 111
Multi-stage filter so that compared to the multi-stage filter that the cascade of multiple single-chamber Single-mode Resonators is constituted, the volume of its cavity subtracts significantly
It is small, and then the small volume of the multiplexer is caused, metal consumptive material is less, so as to reduce cost；Simultaneously as now described
Resonator 111 described in the only one of which of wave filter 4, in the absence of the Mode Coupling between cavity, therefore need not set metallic walls so that
The cavity of the multiplexer is easy to process and installation and debugging are simple, so as to reduce further cost.
Further, since the metal consumptive material that the multiplexer is used is less, it is thus advantageous to improve the resonator 111
Q values, so as to advantageously reduce the pass-band loss in the wave filter 4 and the multiplexer band, improve the filtering of the multiplexer
Band-pass behavior.
As shown in figure 1, for the ease of the processing of the resonator 41, the cross section of the resonator 41 in the present embodiment
It is circle.
In embodiments of the present invention, it is necessary to illustrate, in order to improve the filter effect of the wave filter 4, it is preferable that this
The center of the multiple described resonator 41 in embodiment is on the center line of the resonator 111.
As shown in figure 1, for the ease of the input port 2 and the output port 3 and the body 1 and the wave filter
Connection between 4, the input port 2 in the present embodiment includes input inner wire 21 and input outer conductor 22, the input
Inner wire 21 is sheathed in the input outer conductor 22, and the input inner wire 21 is connected on the input of the wave filter 4,
The input outer conductor 22 is connected on the outer wall of the body 1；The output port 3 includes being led outside output inner wire 31 and output
Body 32, the output inner wire 31 is sheathed in the output outer conductor 32, and the output inner wire 31 is connected to the filtering
In the output end of device 4, the output outer conductor 32 is connected on the outer wall of the body 1.
In embodiments of the present invention, the input inner wire 21 can respectively be molded reconnection with the input outer conductor 22
Together, it is also possible to be integrally formed；The output inner wire 31 can respectively be molded reconnection and exist with the output outer conductor 32
Together, it is also possible to be integrally formed.For the ease of processing, with reduces cost, it is preferable that the input inner wire in the present embodiment
21 are integrally formed with the input outer conductor 22, and the output inner wire 31 is integrally formed with the output outer conductor 32.
In embodiments of the present invention, for the ease of the installation of the input port 2 and the output port 3, the input
Inner wire 21 is welded on the input of the wave filter 4, and the input outer conductor 22 is screwed connection by ring flange
On the outer wall of the body 1；The output inner wire 31 is welded in the output end of the wave filter 4, is led outside the output
Body 32 is screwed by ring flange and is connected on the outer wall of the body 1.
As shown in figure 1, in order that structure rationalization, being connected with the input for realizing the feed outlet and the wave filter 4
Connect, the output port 2 is connected with the output end of the wave filter 4, specifically, feed outlet and institute in the present embodiment
The resonator 41 for stating the input end of wave filter 4 is connected, the resonance of the output port 3 and the output of the wave filter 4
Device 41 is connected.
As shown in figure 1, in order that structure rationalization, described to realize that the input port 2 is connected with the feed entrance
Feed outlet is connected with the input of the wave filter 4, and specifically, the feeding network 5 in the present embodiment includes trunk 51
With multiple branches 52, one end of the trunk 51 is provided with node, and one end of the branch 52 is connected on the node；It is described
On the other end of the trunk 51, the feed outlet is on the other end of the branch 52 for feed entrance.
In embodiments of the present invention, it is necessary to explanation, the trunk 51 in the present embodiment can be with the input
The vertical connection of mouth 2, it is also possible to inclined with the input port 2 and be connected, it is preferable that in order to realize that the input port 2 vertically connects
It is connected on the outer wall of the body 1, the trunk 51 in the present embodiment is vertical with the input port 2 to be connected.
Additionally, the feeding network 5 in the present embodiment forms common cavity in the space occupied by the inside of the cavity 11,
The common cavity causes that the multiplexer has isolation higher.
In embodiments of the present invention, the quantity of the resonator 41 can be according to the actual filtering requirements of the wave filter 4
Set, such as 2,3 and 4 etc..Preferably, it is described in the present embodiment in order to carry out second-order filter using the wave filter 4
The quantity of resonator 41 is 2.
Certainly, in embodiments of the present invention, the quantity of the wave filter 4 can also be defeated according to the wave filter of the multiplexer
Go out way to be configured, such as 2,3 and 4 etc..Preferably, exported to realize the two-way filter of the multiplexer, with
Realize that two-way is filtered, the quantity of the wave filter 4 in the present embodiment is 2.
In embodiments of the present invention, the shape of the body 1 can be cylinder, cuboid or other arbitrary shapes, institute
The shape for stating cavity 11 can also be cylinder, cuboid or other arbitrary shapes, need to only meet and be conducive to improving the filtering
The filter effect of device 4.Preferably, body 1 described in the present embodiment is cuboid, and the cavity 11 is also cuboid.
Additionally, in embodiments of the present invention, the material of the body 1 and the cavity 11 is metal, and the cavity
11 inside is full of air.
As shown in Fig. 2 the operation principle of the multiplexer in the embodiment of the present invention is：It is input into from the input port 2
Signal, lead up to after two resonators 41 in a wave filter 4 carry out second-order filter and export to an institute
Output port 3 is stated, is separately led up to after two other the described resonator 41 in another described wave filter 4 carries out second-order filter
Export another output port 3.
Embodiment two
As shown in figure 3, the multiplexer in the present embodiment, it is with the difference of embodiment one, described in the present embodiment
The cross section of resonator 41 is rectangle, and the bottom of multiple resonators 41 is integrally formed, and multiple resonators 41 top
Portion forms concavo-convex alternate structure (similar spline-simulating structure), its compared to cylindrical resonator, using be integrally formed processing and
Metal consumptive material is less, so as to reduce processing cost；Additionally, it can be with once mounting in place, mounting process is simple, so as to reduce
Installation cost.
In embodiments of the present invention, it is necessary to explanation, after multiple resonators 41 are integrally formed, is inserted perpendicularly into described
In resonator 111, and it is fixed with screw or pin, to complete to install；Meanwhile, the feed is exported and the wave filter 4
The resonator 41 of input end linked together by the way of welding, the output of the output port 3 and the wave filter 4
Resonator 41 at end is linked together by the way of welding.The other structures and operation principle of the present embodiment and embodiment one
It is identical, will not be repeated here.
Embodiment three
As shown in figure 4, the multiplexer in the present embodiment, it is with the difference of embodiment one, described in the present embodiment
Wave filter 4 also includes two feed metal posts 42 on the bottom wall of the resonator 111, a feed metal post 42
Located at the input end of the wave filter 4, output of another described feed metal post 42 located at the wave filter 4；Institute
State feed outlet to be connected with a feed metal post 42, the output port 3 connects with feed metal post 42 another described
Connect, using the feed metal post 42, be easy to be adjusted the filter effect of the wave filter 4, to improve the wave filter 4
Filter effect.The other structures and operation principle of the present embodiment are identical with embodiment one, will not be repeated here.
Example IV
As shown in figure 5, the multiplexer in the present embodiment, it is with the difference of embodiment three, described in the present embodiment
Feeding network 5 is T-shaped, and on the end of the vertical section of the feeding network 5, multiple feeds are exported the feed entrance
On the horizontal segment of the feeding network 5.It is by the way that the feeding network 5 is designed to T-shaped, it is to avoid the public affairs in embodiment one
The presence in chamber altogether so that the design comparison of proper polynomial is simple, so that the volume of the multiplexer is smaller.
In embodiments of the present invention, it is necessary to illustrate, in order to improve the filter effect of the wave filter 4 and reduce many
Influencing each other between the individual wave filter 4, multiple feed outlets are equally spacedly located at the horizontal segment of the feeding network 5
On, and it is therein two it is described feed outlet be respectively arranged on the two ends of the horizontal segment of the feeding network 5.The present embodiment its
Its structure and operation principle are identical with embodiment three, will not be repeated here.
Embodiment five
As shown in fig. 6, the multiplexer in the present embodiment, it is with the difference of implementation four, the filter in the present embodiment
The quantity of ripple device 4 is 3, by setting 3 wave filters 4, is exported with three path filters for realizing the multiplexer.This reality
The other structures and operation principle for applying example are identical with example IV, will not be repeated here.
Embodiment six
As shown in fig. 7, the multiplexer in the present embodiment, it is with the difference of embodiment five, described in the present embodiment
Feeding network 5 is in-line, and on one end of the feeding network 5, the outlet of multiple feeds is located at the feed entrance
On the feeding network 5 so that the input port 2 will not simultaneously be connected to the feeding network with the feed metal post 42
On 5 same position, and then cause the processing of the feeding network 5 and install fairly simple, so as to reduce cost.
In embodiments of the present invention, it is necessary to illustrate, in order to improve the filter effect of the wave filter 4 and reduce many
Influencing each other between the individual wave filter 4, the feed outlet in the present embodiment is equally spacedly located at the feeding network 5
On, and one of those described feed outlet is on the other end of the feeding network 5.The other structures and work of the present embodiment
Make principle identical with embodiment five, will not be repeated here.
To sum up, the present invention provides a kind of multiplexer, including body 1, and body 1 is provided with input port 2 and multiple output ends
Mouth 3, is provided with cavity 11 in body, 11 are provided with multiple wave filters 4 in cavity, and wave filter 4 includes resonator 111 and located at resonator
Multiple resonators 41 on 111 bottom wall, two adjacent resonators 111 have common wall 112；Multiplexer also includes transmission network
Network 5, feeding network 5 is provided with feed entrance and multiple feed outlets；Input port 2 is connected with feed entrance, feed outlet
Input with wave filter 4 is connected, and output port 3 is connected with the output end of wave filter 4.Set by single resonator 111
Put multiple resonators 41 to constitute multi-stage filter so that compared to the multistage filtering that the cascade of multiple single-chamber Single-mode Resonators is constituted
Device, the volume of its cavity is greatly reduced, and then causes the small volume of multiplexer, and metal consumptive material is less, so as to reduce cost；
Simultaneously as the now only one of which resonator 111 of wave filter 4, in the absence of the Mode Coupling between cavity, therefore need not set gold
Category wall so that the cavity of the multiplexer is easy to process and installation and debugging are simple, so as to reduce further cost.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvement and replacement can also be made, these improve and replace
Also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of multiplexer, it is characterised in that including body, the body is provided with input port and multiple output ports, institute
State and cavity is provided with body, multiple wave filters are provided with the cavity, the wave filter includes resonator and located at the resonance
Multiple resonators on the bottom wall in chamber, two adjacent resonators have common wall；The multiplexer also includes transmission network
Network, the feeding network is provided with feed entrance and multiple feed outlets；And the feed outlet and the wave filter are one
One-to-one correspondence, the output port is one-to-one relation with the wave filter；The input port and the feed
Entrance is connected, and the feed outlet is connected with the input of the wave filter, the output of the output port and the wave filter
End connection.
2. multiplexer as claimed in claim 1, it is characterised in that the cross section of the resonator is circular or rectangle.
3. multiplexer as claimed in claim 2, it is characterised in that when the cross section of the resonator is rectangle, Duo Gesuo
The bottom for stating resonator is integrally formed, and concavo-convex alternate structure is formed on the top of multiple resonators.
4. multiplexer as claimed in claim 1, it is characterised in that the input port includes input inner wire and input is outer leads
Body, the input inner wire is sheathed in the input outer conductor, and the input inner wire is connected to the input of the wave filter
On end, the input outer conductor is connected on the outer wall of the body；The output port includes being led outside output inner wire and output
Body, the output inner wire is sheathed in the output outer conductor, and the output inner wire is connected to the output of the wave filter
On end, the output outer conductor is connected on the outer wall of the body.
5. multiplexer as claimed in claim 1, it is characterised in that the feed outlet and the input end of the wave filter
Resonator is connected, and the output port is connected with the resonator of the output of the wave filter.
6. multiplexer as claimed in claim 1, it is characterised in that the wave filter also includes two located at the resonator
Feed metal post on bottom wall, a feed metal post is located at the input end of the wave filter, another described feed
Output of the metal column located at the wave filter；The feed outlet is connected with a feed metal post, the output
Port is connected with feed metal post another described.
7. multiplexer as claimed in claim 1, it is characterised in that the feeding network includes trunk and multiple branches, described
One end of trunk is provided with node, and one end of the branch is connected on the node；The feed entrance is located at the trunk
The other end on, it is described feed outlet located at the branch the other end on.
8. multiplexer as claimed in claim 1, it is characterised in that the feeding network is T-shaped, the feed entrance is located at institute
On the end of the vertical section for stating feeding network, multiple feed outlets are on the horizontal segment of the feeding network.
9. multiplexer as claimed in claim 1, it is characterised in that the feeding network is in-line, the feed entrance sets
In on one end of the feeding network, multiple feed outlets are on the feeding network.
10. multiplexer as claimed in claim 1, it is characterised in that the resonator is two.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031948.7A CN106848513A (en) | 2017-01-17 | 2017-01-17 | A kind of multiplexer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031948.7A CN106848513A (en) | 2017-01-17 | 2017-01-17 | A kind of multiplexer |
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| CN201336659Y (en) * | 2008-12-30 | 2009-10-28 | 安徽科瑞达通信科技有限公司 | Communication integration multi-system base station multiplexer |
| CN101719581A (en) * | 2010-01-26 | 2010-06-02 | 安徽科瑞达通信科技有限公司 | Multi-band combined multiplexer |
| CN101719580A (en) * | 2010-01-07 | 2010-06-02 | 东莞市苏普尔电子科技有限公司 | Method for controlling multi-band signal combiner, and tri-band combiner structure |
| CN102097670A (en) * | 2011-02-18 | 2011-06-15 | 成都泰格微波技术股份有限公司 | Hybrid TM (Transverse Magnetic) mode dielectric filter |
| CN105470609A (en) * | 2015-12-18 | 2016-04-06 | 华南理工大学 | Multistage adjustable multiplexer |
| WO2017035730A1 (en) * | 2015-08-31 | 2017-03-09 | 华为技术有限公司 | Slot antenna and terminal device |
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2017
- 2017-01-17 CN CN201710031948.7A patent/CN106848513A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201336659Y (en) * | 2008-12-30 | 2009-10-28 | 安徽科瑞达通信科技有限公司 | Communication integration multi-system base station multiplexer |
| CN101719580A (en) * | 2010-01-07 | 2010-06-02 | 东莞市苏普尔电子科技有限公司 | Method for controlling multi-band signal combiner, and tri-band combiner structure |
| CN101719581A (en) * | 2010-01-26 | 2010-06-02 | 安徽科瑞达通信科技有限公司 | Multi-band combined multiplexer |
| CN102097670A (en) * | 2011-02-18 | 2011-06-15 | 成都泰格微波技术股份有限公司 | Hybrid TM (Transverse Magnetic) mode dielectric filter |
| WO2017035730A1 (en) * | 2015-08-31 | 2017-03-09 | 华为技术有限公司 | Slot antenna and terminal device |
| CN105470609A (en) * | 2015-12-18 | 2016-04-06 | 华南理工大学 | Multistage adjustable multiplexer |
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