CN206564320U - A kind of broadband multimode filtering annular coupler of use cavity - Google Patents
A kind of broadband multimode filtering annular coupler of use cavity Download PDFInfo
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- CN206564320U CN206564320U CN201720163581.XU CN201720163581U CN206564320U CN 206564320 U CN206564320 U CN 206564320U CN 201720163581 U CN201720163581 U CN 201720163581U CN 206564320 U CN206564320 U CN 206564320U
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Abstract
The utility model discloses a kind of broadband multimode filtering annular coupler of use cavity, including cylindrical cavity, first port, second port, 3rd port and the 4th port, the first port, second port, 3rd port and the 4th port are arranged on the side wall of cylindrical cavity, first port, second port, the first conductor assembly is respectively equipped with where 3rd port and the 4th port, second conductor assembly, 3rd conductor assembly and the 4th conductor assembly, first conductor assembly, second conductor assembly, 3rd conductor assembly and the 4th conductor assembly are sequentially arranged on the side wall of cylindrical cavity, and the first angle between conductor assembly and the second conductor assembly, the angle between angle and the 3rd conductor assembly and the 4th conductor assembly between second conductor assembly and the 3rd conductor assembly is 45 degree.Annular coupler of the present utility model has the advantages that good blocking effect, high rectangle degree, wider fractional bandwidth, disclosure satisfy that the requirement of communication system.
Description
Technical field
The utility model is related to a kind of annular coupler, the broadband multimode filtering annular coupling of especially a kind of use cavity
Device, belongs to the microwave and millimeter wave communications field.
Background technology
Annular coupler is widely used in microwave and millimeter wave communication system, and such as frequency mixer, amplifier, multiplexer are all
Use annular coupler.As shown in figure 1, traditional annular coupler uses annular plane structure, narrower bandwidth, low work(
Rate capacity, low reactance-resistance ratio, blocking effect is bad, and waveform rectangular degree difference causes filter function bad, therefore product is in the process of manufacturing
Middle inferior position is obvious.
Utility model content
The purpose of this utility model is that there is provided a kind of broadband of use cavity in order to solve the defect of above-mentioned prior art
Multimode filters annular coupler, and the annular coupler has the advantages that good blocking effect, high rectangle degree, wider fractional bandwidth,
It disclosure satisfy that the requirement of communication system.
The purpose of this utility model can be reached by adopting the following technical scheme that：
A kind of broadband multimode filtering annular coupler of use cavity, including cylindrical cavity, first port, second port,
3rd port and the 4th port, the first port, second port, the 3rd port and the 4th port are arranged at cylindrical cavity
On the wall of side, where first port, second port, the 3rd port and the 4th port at be respectively equipped with the first conductor assembly, second lead
Body component, the 3rd conductor assembly and the 4th conductor assembly, the first conductor assembly, the second conductor assembly, the 3rd conductor assembly and
Four conductor assemblies are sequentially arranged on the side wall of cylindrical cavity, and angle between the first conductor assembly and the second conductor assembly,
The angle between angle and the 3rd conductor assembly and the 4th conductor assembly between second conductor assembly and the 3rd conductor assembly
It is 45 degree.
As a kind of preferred scheme, first conductor assembly is by the first coaxial outer conductor and the first coaxial inner conductor group
On cylindrical cavity body sidewall at where being fixed on first port into, first coaxial outer conductor, the first coaxial inner conductor is from the
Single port is put in cylindrical cavity；Second conductor assembly is made up of the second coaxial outer conductor and the second coaxial inner conductor, institute
State on the cylindrical cavity body sidewall that the second coaxial outer conductor is fixed at where second port, the second coaxial inner conductor is from second port
Put in cylindrical cavity；3rd conductor assembly is made up of the 3rd coaxial outer conductor and the 3rd coaxial inner conductor, and the described 3rd
Coaxial outer conductor is fixed on the cylindrical cavity body sidewall at the place of the 3rd port, and the 3rd coaxial inner conductor puts in circle from the 3rd port
In post cavity；4th conductor assembly is made up of the 4th coaxial outer conductor and the 4th coaxial inner conductor, and the described 4th is coaxial outer
Conductor is fixed on the cylindrical cavity body sidewall at the place of the 4th port, and the 4th coaxial inner conductor puts in cylindrical cavity from the 4th port
It is interior.
It is used as a kind of preferred scheme, first coaxial outer conductor, the second coaxial outer conductor, the 3rd coaxial outer conductor and
Four coaxial outer conductors use SMA heads, first coaxial inner conductor, the second coaxial inner conductor, the 3rd coaxial inner conductor and the
Four coaxial inner conductors use coupling bar, and end and the coupling bar of the sub-miniature A connector are welded.
As a kind of preferred scheme, the sub-miniature A connector is provided with four through holes, and the cylindrical cavity is in first port, the
The position of Two-port netwerk, the 3rd port and the 4th near ports has four screwed holes corresponding with the through hole of sub-miniature A connector,
Sub-miniature A connector is passed through with four screwed holes to coordinate after four through holes by four screws and is fixed on cylindrical cavity body sidewall.
As a kind of preferred scheme, the lateral wall of the cylindrical cavity is a cuboid, and top exterior walls are a baffle plate, rectangle
The length of body, width length respectively with baffle plate, width are consistent, and baffle plate is fixed on cuboid, and baffle plate is linked to be with cuboid
An angle is cut respectively between the architecture front-side face of one and right flank, between leading flank and left surface；The first port is set
Put on the right side wall of cuboid, the second port is arranged on the side wall of corner cut between cuboid leading flank and right flank,
3rd port is arranged on the front side wall of cuboid, and the 4th port is arranged between cuboid leading flank and left surface
On the side wall of corner cut.
As a kind of preferred scheme, the baffle plate is fixed by screws on cuboid.
As a kind of preferred scheme, the cuboid and baffle plate are made of metal material.
The utility model has following beneficial effect relative to prior art：
The utility model sets on the side wall of a cylindrical cavity and is equipped with conductor at four ports, each port place
Component, four ports can also differ 45 degree of rows as input port as output port, the conductor assembly of four ports
Row, make impedance matching, when selecting one of port input, and its corresponding conductor assembly will be carried out in signal feed to cavity
Filtering, partitions energy into after filtering and gives other three ports corresponding conductor assembly, exported energy by other three ports, from
And the function of coupler is realized, and there is high q-factor and high power capacity, can be complete when by cavity in low-frequency current
Isolation, therefore blocking effect is good, simulation result shows, structure S parameter rectangular degree is good, therefore filter function is outstanding, it is ensured that coupling
Clutch is high performance to be required.
Brief description of the drawings
Fig. 1 is the annular coupler structural representation of prior art.
Fig. 2 filters annular coupler structural representation for the broadband multimode of the utility model embodiment 1.
Fig. 3 filters annular coupler front view for the broadband multimode of the utility model embodiment 1.
Fig. 4 filters annular coupler left side view for the broadband multimode of the utility model embodiment 1.
Fig. 5 filters annular coupler top view for the broadband multimode of the utility model embodiment 1.
When Fig. 6 is the first port input signal of the broadband multimode filtering annular coupler of the utility model embodiment 1
Electromagnetic Simulation result figure.
When Fig. 7 is the 4th port input signal of the broadband multimode filtering annular coupler of the utility model embodiment 1
Electromagnetic Simulation result figure.
Fig. 8 filters annular coupler schematic diagram for the broadband multimode of processing the utility model embodiment 1.
Wherein, 1- cylindrical cavities, the coaxial outer conductors of 2- first, the coaxial inner conductors of 3- first, the coaxial outer conductors of 4- second, 5-
Second coaxial inner conductor, the coaxial outer conductors of 6- the 3rd, the coaxial inner conductors of 7- the 3rd, the coaxial outer conductors of 8- the 4th, 9- the 4th is coaxial
Inner wire, 10- cuboids, 11- baffle plates.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment 1：
As Figure 2-Figure 5, the annular coupler of the present embodiment includes cylindrical cavity 1, first port, second port, the
Three ports and the 4th port, the first port, second port, the 3rd port and the 4th port are arranged at cylindrical cavity 1
On the wall of side, first port, second port, the 3rd port and the 4th port can also be used as output end as input port
Mouthful；The first conductor assembly, the second conductor group are respectively equipped with where first port, second port, the 3rd port and the 4th port
Part, the 3rd conductor assembly and the 4th conductor assembly, the first conductor assembly, the second conductor assembly, the 3rd conductor assembly and the 4th are led
Body component is sequentially arranged on the side wall of cylindrical cavity 1 from right to left, from the top surface of cylindrical cavity 1, the first conductor assembly,
Second conductor assembly, the 3rd conductor assembly and the 4th conductor assembly on lower half circumference to be arranged in order counterclockwise, the first conductor
The angle and the 3rd conductor between angle, the second conductor assembly and the 3rd conductor assembly between component and the second conductor assembly
Angle between component and the 4th conductor assembly is 45 degree, and so design can make impedance matching.
First conductor assembly is made up of the first coaxial outer conductor 2 and the first coaxial inner conductor 3, and described first is coaxial outer
Conductor 2 is fixed on the side wall of cylindrical cavity 1 at first port place, and the first coaxial inner conductor 3 puts in cylinder from first port
In cavity 1；Second conductor assembly is made up of the second coaxial outer conductor 4 and the second coaxial inner conductor 5, and described second is coaxial outer
Conductor 4 is fixed on the side wall of cylindrical cavity 1 at second port place, and the second coaxial inner conductor 5 puts in cylinder from second port
In cavity 1；3rd conductor assembly is made up of the 3rd coaxial outer conductor 6 and the 3rd coaxial inner conductor 7, and the described 3rd is coaxial outer
Conductor 6 is fixed on the side wall of cylindrical cavity 1 at the place of the 3rd port, and the 3rd coaxial inner conductor 7 puts in cylinder from the 3rd port
In cavity 1；4th conductor assembly is made up of the 4th coaxial outer conductor 8 and the 4th coaxial inner conductor 9, and the described 4th is coaxial outer
Conductor 8 is fixed on the side wall of cylindrical cavity 1 at the place of the 4th port, and the 4th coaxial inner conductor 9 puts in cylinder from the 4th port
In cavity 1.
In above-described embodiment, first coaxial outer conductor 2, the second coaxial outer conductor 4, the 3rd coaxial outer conductor 6 and
Four coaxial outer conductors 8 use SMA heads, first coaxial inner conductor 3, the second coaxial inner conductor 5, the 3rd coaxial inner conductor 7
Coupling bar is used with the 4th coaxial inner conductor 9, end and the coupling bar of the sub-miniature A connector are welded, and cylindrical cavity 1 is in first end
Mouth, second port, the position of the 3rd port and the 4th near ports have four spiral shells corresponding with the through hole of sub-miniature A connector
Pit, sub-miniature A connector is passed through with four screwed holes to coordinate after four through holes by four screws and is fixed on the side wall of cylindrical cavity 1.
In first port input signal, transmitted energy to by the first conductor assembly feed in cylindrical cavity 1, cylindrical cavity
Body 1 is partitioned energy into the second conductor assembly, the 3rd conductor assembly and the 4th conductor assembly after the filtering, by second port,
Three ports and the 4th port export energy, Electromagnetic Simulation result as shown in fig. 6, S11 represents the return loss of first port,
S21 represents first port to the positive transmission coefficient of second port, and S31 represents first port to the positive transmission system of the 3rd port
Number, S41 represents first port to the positive transmission coefficient of the 4th port, and S23 represents the 3rd port to the reverse biography of second port
Defeated coefficient；
In the 4th port input signal, transmitted energy to by the 4th conductor assembly feed in cylindrical cavity 1, cylindrical cavity
Body 1 is partitioned energy into the first conductor assembly, the second conductor assembly and the 3rd conductor assembly after the filtering, by first port,
Two-port netwerk and the 3rd port export energy, and Electromagnetic Simulation result is as shown in fig. 7, S41 represents first port to the 4th port
Reverse transfer coefficient, S23 represents the 3rd port to the positive transmission coefficient of second port, and S42 represents second port to the 4th end
Mouthful reverse transfer coefficient, S43 represents second port to the reverse transfer coefficient of the 4th port, and S44 represents returning for the 4th port
Ripple is lost.
The annular coupler of the present embodiment has the advantages that high q-factor and high power capacity, and cavity is being passed through in low-frequency current
When can be completely isolated, therefore blocking effect is good, can see from above-mentioned simulation result, and structure S parameter rectangular degree is good, therefore filter
Wave energy is outstanding, it is ensured that coupler is high performance to be required.
As shown in figure 8, the annular coupler process of the present embodiment is as follows：
1) cuboid 10 being made up of metal material is taken, a cylindrical cavity 1 is opened in centre, and in cuboid 10
An angle is cut respectively between leading flank and right flank, between leading flank and left surface；
2) first port is provided with the right side wall of cuboid 10, the corner cut between the leading flank of cuboid 10 and right flank
Be provided with second port on the wall of side, the 3rd port be provided with the front side wall of cuboid 10, cuboid leading flank and left surface it
Between corner cut side wall on be provided with the 4th port；
3) locate to be screwed first respectively where first port, second port, the 3rd port and the 4th port coaxial
Outer conductor 2, the second coaxial outer conductor 4, the 3rd coaxial outer conductor 6 and the 4th coaxial outer conductor 8, and from first port, the second end
Mouth, the 3rd port and the 4th port are respectively by the first coaxial inner conductor 3, the second coaxial inner conductor 5, the and of the 3rd coaxial inner conductor 7
4th coaxial inner conductor 9 is put in cylindrical cavity 1, and the first coaxial outer conductor 2 and the first coaxial inner conductor 3, second is coaxial outer
The coaxial inner conductor 5 of conductor 4 and second, the 3rd coaxial outer conductor 6 and the 3rd coaxial inner conductor 7, the 4th coaxial outer conductor 8 and the 4th
Coaxial inner conductor 9 is welded respectively；
4) by a block size is consistent with the top dimension of cuboid 10, baffle plate 11 being made up of metal material is screwed in
The top of cuboid 10.
In summary, the utility model is set on the side wall of a cylindrical cavity at where four ports, each port
Conductor assembly is equipped with, four ports can also be used as output port, the conductor assembly of four ports as input port
45 degree of arrangements of difference, make impedance matching, and when selecting one of port input, its corresponding conductor assembly arrives signal feed
It is filtered in cavity, is partitioned energy into after filtering and give other three ports corresponding conductor assembly, will by other three ports
Energy is exported, so as to realize the function of coupler, has the advantages that high q-factor and high power capacity, in low-frequency current in transit chamber
It can be completely isolated during body, therefore blocking effect is good, simulation result shows, structure S parameter rectangular degree is good, therefore filter function goes out
Color, it is ensured that coupler is high performance to be required.
It is described above, only the utility model patent preferred embodiment, but the utility model patent protection domain simultaneously
This is not limited to, any one skilled in the art is in the scope disclosed in the utility model patent, according to this
Technical scheme and its utility model design of utility model patent are subject to equivalent substitution or change, belong to the utility model patent
Protection domain.
Claims (7)
1. a kind of broadband multimode filtering annular coupler of use cavity, it is characterised in that：Including cylindrical cavity, first port,
Second port, the 3rd port and the 4th port, the first port, second port, the 3rd port and the 4th port are arranged at
On the side wall of cylindrical cavity, the first conductor group is respectively equipped with first port, second port, the 3rd port and the 4th port place
Part, the second conductor assembly, the 3rd conductor assembly and the 4th conductor assembly, the first conductor assembly, the second conductor assembly, the 3rd conductor
Component and the 4th conductor assembly are sequentially arranged on the side wall of cylindrical cavity, and between the first conductor assembly and the second conductor assembly
Angle, the second conductor assembly and the 3rd conductor assembly between angle and the 3rd conductor assembly and the 4th conductor assembly between
Angle be 45 degree.
2. a kind of broadband multimode filtering annular coupler of use cavity according to claim 1, it is characterised in that：It is described
First conductor assembly is made up of the first coaxial outer conductor and the first coaxial inner conductor, and first coaxial outer conductor is fixed on first
On cylindrical cavity body sidewall at where port, the first coaxial inner conductor is put in cylindrical cavity from first port；Described second leads
Body component is made up of the second coaxial outer conductor and the second coaxial inner conductor, and second coaxial outer conductor is fixed on second port institute
On the cylindrical cavity body sidewall at place, the second coaxial inner conductor is put in cylindrical cavity from second port；3rd conductor assembly
It is made up of the 3rd coaxial outer conductor and the 3rd coaxial inner conductor, the 3rd coaxial outer conductor is fixed at the place of the 3rd port
On cylindrical cavity body sidewall, the 3rd coaxial inner conductor is put in cylindrical cavity from the 3rd port；4th conductor assembly is by the 4th
Coaxial outer conductor and the 4th coaxial inner conductor composition, the 4th coaxial outer conductor are fixed on the cylindrical cavity at the place of the 4th port
On body sidewall, the 4th coaxial inner conductor is put in cylindrical cavity from the 4th port.
3. a kind of broadband multimode filtering annular coupler of use cavity according to claim 2, it is characterised in that：It is described
First coaxial outer conductor, the second coaxial outer conductor, the 3rd coaxial outer conductor and the 4th coaxial outer conductor use SMA heads, described
First coaxial inner conductor, the second coaxial inner conductor, the 3rd coaxial inner conductor and the 4th coaxial inner conductor use coupling bar, described
Welded with coupling bar the end of sub-miniature A connector.
4. a kind of broadband multimode filtering annular coupler of use cavity according to claim 3, it is characterised in that：It is described
Sub-miniature A connector is provided with four through holes, and the cylindrical cavity is in first port, second port, the 3rd port and the 4th near ports
Position have four screwed holes corresponding with the through hole of sub-miniature A connector, sub-miniature A connector is led to by four screws through four
Tetra- screwed holes of Kong Houyu, which coordinate, to be fixed on cylindrical cavity body sidewall.
5. a kind of broadband multimode filtering annular coupler of use cavity according to claim any one of 1-4, its feature
It is：The lateral wall of the cylindrical cavity is a cuboid, and top exterior walls are a baffle plate, the length of cuboid, width respectively with
The length of baffle plate, width are consistent, and baffle plate is fixed on cuboid, architecture front-side face and the right side that baffle plate is connected with cuboid
An angle is cut respectively between side, between leading flank and left surface；The first port is arranged on the right side wall of cuboid,
The second port is arranged on the side wall of corner cut between cuboid leading flank and right flank, and the 3rd port is arranged on rectangle
On the front side wall of body, the 4th port is arranged on the side wall of corner cut between cuboid leading flank and left surface.
6. a kind of broadband multimode filtering annular coupler of use cavity according to claim 5, it is characterised in that：It is described
Baffle plate is fixed by screws on cuboid.
7. a kind of broadband multimode filtering annular coupler of use cavity according to claim 5, it is characterised in that：It is described
Cuboid and baffle plate are made of metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163581.XU CN206564320U (en) | 2017-02-23 | 2017-02-23 | A kind of broadband multimode filtering annular coupler of use cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163581.XU CN206564320U (en) | 2017-02-23 | 2017-02-23 | A kind of broadband multimode filtering annular coupler of use cavity |
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| CN206564320U true CN206564320U (en) | 2017-10-17 |
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| CN201720163581.XU Expired - Fee Related CN206564320U (en) | 2017-02-23 | 2017-02-23 | A kind of broadband multimode filtering annular coupler of use cavity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711566A (en) * | 2017-02-23 | 2017-05-24 | 华南理工大学 | Broadband multi-mode filtering annular coupler employing cavity |
-
2017
- 2017-02-23 CN CN201720163581.XU patent/CN206564320U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711566A (en) * | 2017-02-23 | 2017-05-24 | 华南理工大学 | Broadband multi-mode filtering annular coupler employing cavity |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20200223 |