CN206602170U - Low-loss broadband vast scale not decile radial direction power divider - Google Patents
Low-loss broadband vast scale not decile radial direction power divider Download PDFInfo
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- CN206602170U CN206602170U CN201720359702.8U CN201720359702U CN206602170U CN 206602170 U CN206602170 U CN 206602170U CN 201720359702 U CN201720359702 U CN 201720359702U CN 206602170 U CN206602170 U CN 206602170U
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Abstract
The utility model discloses a kind of low-loss broadband vast scale not decile radial direction power divider, including together Axial and radial power divider, the same Axial and radial power divider includes main road output end, main road cavity, main input end, main road inner wire；Main road cavity side is provided with branch road cavity, the two parallel and internal connection, the main road inner wire also draws a branch road high impedance inner wire by transmission line, main road inner wire and branch road high impedance inner wire reach into vast scale height impedance ratio, and distribute the signal energy of main road to branch road high impedance inner wire, the branch road high impedance inner wire is located in branch road cavity, connects several branch road output ends through Wilkinson power division network, signal energy is assigned into branch road output end.The utility model improves power divider not decile ability, while making work(branch number more flexible, is no longer limited by 2nRelation, reduces device loss, boost device power bearing ability.
Description
Technical field
The utility model is related to a kind of power divider, more particularly to a kind of low-loss broadband vast scale not decile radial direction work(
Rate distributor.
Background technology
Power divider is the important basic device of a class in microwave engineering, and it is widely used in civil telecommunications, micro-
In the various civilian, military equipments such as wave measurement, radar, communication, electronic countermeasure, Aero-Space, primarily serve in a device to passing
Microwave energy on defeated path by system requirements, accurately to the effect of antenna end, with power combiner and microwave amplifier match somebody with somebody by distribution
Close, then can play a part of that High-Power Microwave signal will be synthesized after low level signal amplification, be the first device of indispensable key in system
Part.
High directivity beam technique is the technology of current various gadgets, electronic warfare system or even star earth communication system
One of development trend is passed, it is necessary to accurately control the level magnitudes of its feed-in, phase to each unit of aerial array in system
In the power allocation scheme of system, based on traditional Wilkinson type distributor circuit, proportional allocations apply relatively broad, though not
Can also be realized in decile Circuit theory, but its need realize big impedance variations often result in microstrip circuit line width it is too small be difficult to plus
Work, and because needing the conversion of more piece micro-strip impedance line to realize broadband performance, cause device loss higher, low damage is required to some
Consumption, high not decile than system for be difficult to meet needs.
Its technical problem of traditional Wilkinson power divider and defect are mainly reflected in following two aspects：
1. due to, as the carrying transmission line of circuit, realizing vast scale not when needing device generally using microstrip line or strip line
Deng timesharing, multi-branch transport line impedence all the way need to be designed to very high, but be limited to the various factors shadow such as processing technology, reliability
Ring, such circuit can realize that decile ratio can not reach 3：1 has belonged to and being difficult, compared with the technical need of amplitude weighting aerial array
Also suitable gap；
2. for wideband requirements, it need to be realized by more piece impedance transformation line, extra increased impedance transformation line and additional stages
Between isolation resistance considerably increase device loss, it is difficult to meet powerful application demand, at the same planarization structure so that point
It is more easy to realize relatively by 2 index times rule with way, and to relatively difficult to achieve if the work(branch number such as 5 tunnels, 7 tunnels, 9 tunnels.
The content of the invention
The purpose of this utility model is that offer one kind solves the above problems, and improves power divider not decile ability,
Make work(branch number more flexible simultaneously, be no longer limited by 2nRelation, reduce device loss, boost device power bearing ability it is low
Broadband vast scale not decile radial direction power divider is lost.
To achieve these goals, the technical solution adopted in the utility model is such：A kind of big ratio in low-loss broadband
Example not decile radial direction power divider, including together Axial and radial power divider, the same Axial and radial power divider include from
It is provided with several main road output ends that top to bottm is coaxially disposed, a main road cavity, a main input end, main road cavity by signal energy
Amount is distributed to the main road inner wire of main road output end；
Also include a branch road cavity, the branch road cavity is located at main road cavity side, and the two parallel and internal connection is described
Main road inner wire also draws a branch road high impedance inner wire by transmission line；
Main road inner wire and branch road high impedance inner wire reach into vast scale height impedance ratio, and the signal energy of main road is divided
Branch road high impedance inner wire is assigned to, the branch road high impedance inner wire is located in branch road cavity, connects through Wilkinson power division network
Several branch road output ends are connect, signal energy is assigned to branch road output end, the branch road output end is located at remote on branch road cavity
One end of main road cavity.
As preferred：Transmission line uses transmission line in coaxial transmission line, branch road wall to use different in the main road cavity
Width and thickness microstrip transmission line or strip transmission line.
Compared with prior art, the utility model has the advantage of：Main road is used with Axial and radial power divider, main road chamber
Body, main road inner wire and main input end, main road output end constitute same Axial and radial power network, complete to broadband signal
Matching, and the structure can flexibly construct the distribution of n roads, be not only restricted to 2n relations, distribute signal energy to n in main road inner wire
Road main road output, while drawing signal energy into branch road cavity, is connected with branch road high impedance inner wire, high by branch road
Impedance inner wire and the vast scale height impedance ratio before the distribution of main road inner wire, can easily realize the not decile power point of vast scale
Match somebody with somebody.
The energy that branch road high impedance inner wire is extracted further is segmented by branch road power division network again, be can reach final
Up to 24：1 decile distribution at high proportion.Because main road distribution is using the distribution of coaxial radial, it, which is lost to constitute, only has conductor
Loss and reflection loss, transmission line use heavy caliber coaxial transmission line, therefore its insertion loss is smaller compared with traditional mode, and are held
It is bigger by power capacity.
There is difference substantially in its design method of the utility model compared with traditional power divider, pass through branch road
Contrast between high impedance inner wire and Low ESR main road is readily available larger not decile distribution ratio, and work(branch number is flexibly,
Multichannel, the distribution of a variety of ratios can be achieved, there is distribution ratio, work(branch number as the power divider designed by the utility model
Flexibly, the advantage such as broadband low loss, high-power.
Brief description of the drawings
Fig. 1 is common decile Wilkinson power divider structure chart in the prior art；
Fig. 2 is unequal power distributor structure chart in the prior art；
Fig. 3 is multipath power distributor structure chart in the prior art；
Fig. 4 is wideband power distributor structure chart in the prior art；
Fig. 5 is the utility model structural representation；
Fig. 6 is the utility model circuit theory diagrams；
Fig. 7 is the port map of magnitudes of main road output end；
Fig. 8 is the port map of magnitudes of branch road output end.
In figure：1st, main road cavity；2nd, main road inner wire；3rd, main road output end；4th, branch road cavity；5th, led in branch road high impedance
Body；6th, Wilkinson power division network；7th, branch road output end.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1：It is the structure chart of several power dividers in the prior art referring to Fig. 1 to Fig. 8, referring to Fig. 5-Fig. 8,
For the utility model schematic diagram.
A kind of low-loss broadband vast scale not decile radial direction power divider, including together Axial and radial power divider, institute
Stating same Axial and radial power divider includes the several main road output ends 3 being coaxially disposed from top to bottom, a main road cavity 1, a main road
It is provided with input, main road cavity 1 and distributes signal energy to the main road inner wire 2 of main road output end 3；Also include a branch road chamber
Body 4, the branch road cavity 4 is located at the side of main road cavity 1, and the two parallel and internal connection, the main road inner wire 2 also passes through biography
Defeated line draws a branch road high impedance inner wire 5；
Main road inner wire 2 and branch road high impedance inner wire 5 reach into vast scale height impedance ratio, and by the signal energy of main road
Distribution is to branch road high impedance inner wire 5, and the branch road high impedance inner wire 5 is located in branch road cavity 4, through Wilkinson work(subnetting
Network 6 connects several branch road output ends 7, and signal energy is assigned into branch road output end 7, and the branch road output end 7 is located at branch road chamber
Transmission line uses transmission line in coaxial transmission line, branch road wall in one end away from main road cavity 1 on body 4, the main road cavity 1
Using different in width and thickness microstrip transmission line or strip transmission line.In addition, main road inner wire 2, branch road high impedance inner wire 5 can
To be used as medium using unlike materials such as copper-clad plate, ceramic substrates.
Embodiment 2：Referring to Fig. 1 to Fig. 8, in order to further illustrate such scheme, we design according to the utility model
One point of ten No. two power divider simulation model, it can be seen that in main road, main road output end 3 is four, branch road output
End 7 is 8.The present embodiment may be implemented in 1.1GHz ~ 1.6GHz frequency ranges, and the port amplitude distribution value of branch road output end 7-
Phase equalization≤± 2 ° between 6.27 ± 0.3dB, port amplitude distribution -22.5 ± 1dB of value of main road output end 3, inner ring port,
Phase equalization≤± 2 ° between the port of outer ring, the dB of transmission loss≤0.2, Fig. 7, Fig. 8 are results of model simulation.
Especially Fig. 8 understands that 8 port amplitudes of branch road output end 7 have the uniformity of height, therefore are only simulated in figure
Eight lines, no longer the output amplitude value to each port are individually distinguished.
Embodiment 3：We actually generate a product according to the simulation model of embodiment 2, and it is special to survey its index further accordance with product
Property, referring to table 1 below：
Table 1：One point of ten No. two power divider actual measurement index properties table
Claims (2)
1. a kind of low-loss broadband vast scale not decile radial direction power divider, including together Axial and radial power divider, described
Include the several main road output ends being coaxially disposed from top to bottom, a main road cavity, a main input with Axial and radial power divider
It is provided with end, main road cavity and distributes signal energy to the main road inner wire of main road output end；
It is characterized in that：Also include a branch road cavity, the branch road cavity is located at main road cavity side, and the two is parallel and internal connects
Logical, the main road inner wire also draws a branch road high impedance inner wire by transmission line；
Main road inner wire and branch road high impedance inner wire reach into vast scale height impedance ratio, and by the signal energy of main road distribute to
Branch road high impedance inner wire, the branch road high impedance inner wire is located in branch road cavity, and number is connected through Wilkinson power division network
Individual branch road output end, branch road output end is assigned to by signal energy, and the branch road output end is located on branch road cavity away from main road
One end of cavity.
2. low-loss broadband according to claim 1 vast scale not decile radial direction power divider, it is characterised in that：It is described
In main road cavity transmission line use in coaxial transmission line, branch road wall transmission line using different in width and thickness microstrip transmission line or
Strip transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359702.8U CN206602170U (en) | 2017-04-07 | 2017-04-07 | Low-loss broadband vast scale not decile radial direction power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359702.8U CN206602170U (en) | 2017-04-07 | 2017-04-07 | Low-loss broadband vast scale not decile radial direction power divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206602170U true CN206602170U (en) | 2017-10-31 |
Family
ID=60144885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720359702.8U Active CN206602170U (en) | 2017-04-07 | 2017-04-07 | Low-loss broadband vast scale not decile radial direction power divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206602170U (en) |
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2017
- 2017-04-07 CN CN201720359702.8U patent/CN206602170U/en active Active
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