CN206116581U - Ware is divided to merit and subassembly thereof - Google Patents
Ware is divided to merit and subassembly thereof Download PDFInfo
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- CN206116581U CN206116581U CN201620986060.XU CN201620986060U CN206116581U CN 206116581 U CN206116581 U CN 206116581U CN 201620986060 U CN201620986060 U CN 201620986060U CN 206116581 U CN206116581 U CN 206116581U
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Abstract
The utility model provides a ware is divided to merit and subassembly thereof, this merit divides the ware to include the dielectric plate, this dielectric plate openly is equipped with the microstrip line, the dielectric plate back is equipped with the metal ground plane, this microstrip line includes main microstrip line, input microstrip line and two output microstrip lines, this main microstrip line is snakelike microstrip line, main microstrip line middle section is connected to this input microstrip line, main microstrip line both ends are connected respectively to these two output microstrip lines, the terminal input port that is of this input microstrip line, these two output microstrip lines are equipped with two output port totally four output port respectively. This merit divides the ware subassembly to include that at least two set up side by side the ware is divided to the merit. The utility model discloses ware compact structure is divided to the merit, and it is littleer to compare conventional design method physical dimension, the cost is reduced, working frequency band to can divide the way and the merit branch proportion of network structure adjustment output in a flexible way according to the merit of base station antenna feed network needs, realize that the ware is divided to the merit of the multiple merit proportion by subtraction of multichannel.
Description
【Technical field】
This utility model is related to the passive microwave transmission apparatuss field in the communications field, more particularly, to a kind of multichannel work(point
Device.
【Background technology】
In microwave device field, input signal is divided into several signals and is transported to other radio-frequency devices or electricity by power splitter
Road, particularly needs power according to certain pro rate to each unit inside radio system, and power splitter is a kind of very normal
See also critically important device.In antenna of mobile communication base station, when radiating element arrangement determines, antenna for base station carries out wave beam tax
Property mainly realized by controlling the amplitude of array radiation unit with phase place.What is commonly used in antenna for base station at present is orientation coupling
Clutch, mixing ring and Wilkinson power divider, once but bonder machine-shaping centimetre ratio determine that, be not suitable for later stage root
It is adjusted according to the network structure of antenna for base station, mixed methylcyclosiloxane product is excessive, is not suitable as conventional power splitter and uses, and work
Make frequency band narrower.Conventional Wilkinson power divider adjusts impedance using the quarter-wave of working frequency range as transforming section
Match somebody with somebody, this power splitter is easily achieved one point of multichannel situation, working frequency range can be very wide, but be limited by quarter-wave change
Section restriction is changed, traditional design methods can cause this power splitter physical size very big, particularly in the brighter of low-frequency range performance
It is aobvious, just use unsuitable for low-frequency range, and after the good work(point ratio-dependent of Design and Machining, be also not suitable in later stage base station day
It is adjusted in line development.Also a kind of cable power splitter, wavelength and frequency are inversely proportional to, low-frequency range power splitter transformer section compared with
It is long, consider in cost and performance, low frequency power splitter usually adopts cable power splitter, but the power-division ratios of this power splitter
Example is limited by cable resistance, and working band is narrow.
Antenna of mobile communication base station is the power distribution according to feeding network selecting suitable power splitter, existing work(point
Device size is larger, and processed complex, high cost, working band is narrow, and passband Out-of-band rejection characteristic is poor, is not very adapted in antenna for base station
Used in.
Therefore it provides a kind of size is little, simple and compact for structure, handling ease, low cost, working band width, centimetre ratio can
The power splitter being adjusted flexibly is actually necessary.
【The content of the invention】
The purpose of this utility model is to provide a kind of little, simple and compact for structure size, low cost, centimetre than adjustable
Power splitter and its component.
To realize this utility model purpose, there is provided technical scheme below：
This utility model provides a kind of power splitter, and it includes dielectric-slab, and the dielectric-slab front is provided with microstrip line, medium backboard
Face is provided with metal ground plane, and the microstrip line includes main microstrip line, input microstrip line and two output microstrip lines, and the main microstrip line is
Snakelike microstrip line, the input microstrip line connects main microstrip line stage casing, and this two output microstrip lines connect respectively main microstrip line two ends,
The input microstrip line end is input port, and this two output microstrip lines are respectively equipped with two output ports totally four outfans
Mouthful.This utility model power splitter adopts the microstrip line of bending structure, four output ports to share an output microstrip line, knot two-by-two
Run route matching technique jointly so that power divider structure is compact, it is less to compare conventional design method physical size, reduces cost,
Working band width, and this utility model can realize multichannel, different work(by increasing and decreasing output port, changing output port impedance
Divide the function of ratio, this design can be significantly reduced the species of power splitter, and need not change power splitter, can be flexibly according to base
The way and work(point ratio of the power division network structural adjustment output that station antenna feeding network needs, realizes the various work(point ratios of multichannel
Power splitter.
Preferably, the snakelike main microstrip line specially " bends " font, and the main microstrip line and two output microstrip lines are in right
Claim structure setting.
Preferably, this two output microstrip lines are longitudinally perpendicular with the main microstrip line of " bow " font.
Preferably, the input microstrip line is " L " shape structure of bending, laterally vertical with the main microstrip line of " bow " font.
Preferably, the input microstrip line is provided with the first Input transformation section, the second Input transformation section, by the first Input transformation
Section, the connection of the second Input transformation Duan Yuzhu microstrip lines stage casing, the main microstrip line stage casing separates two one-to-two transforming sections to both sides.
Preferably, two one-to-two transforming sections of the first Input transformation Duan Yuzhu microstrip lines consist of the bending of " mountain " font
Structure.This structure helps diminution work(point plate bulk.
Preferably, the first Input transformation section and two one-to-two tamper lengths are λ/16～λ/32.
Preferably, two one-to-two transforming sections of the main microstrip line extend and are bent to form the " u "-shaped of two handstand.
Preferably, two one-to-two transforming sections are respectively equipped with the first open circuit branch for extending downwardly in " u "-shaped turning recess
Section, the end for being somebody's turn to do the main microstrip line both sides of " bow " font is respectively equipped with the second open circuit minor matters line.
Preferably, the length of the first open circuit minor matters and the second open circuit minor matters is λ/8 either λ/16 or λ/32, and λ is work
The wavelength of frequency range, each open circuit minor matters can be unequal width.
The outfan of this utility model power splitter can connect different impedance cables, it is preferred that the output micro-strip line impedance is 25
Ohm or 50 ohm, it is also possible to be set as other resistance values.
The output port of this utility model power splitter can be used all, it is also possible to partly using and remaining is vacant, and
With reference to arranging by different impedances, the flexible allotment of power splitter output way and the regulation of different centimetre ratio can be realized.As
Preferred embodiment, four output ports, only with three ports of welding, can become one point of three road power splitter with vacant one；
Further, two ports of that one end welding of described two ports of welding can be different impedances, realize different
Work(point ratio.Used as preferred another embodiment, four output ports can be each vacant one with both sides, only with two ends of welding
Mouthful, become one-to-two road power splitter.
Preferably, the dielectric-slab is PCB, it is preferred that whole PCB length and width be each about the λ of working frequency range/
4。
Preferably, short circuit metallic via bar band is provided between each microstrip line.Short circuit metallic via bar band can subtract
Coupling between few microstrip line, improves microstrip line capacity of resisting disturbance.
This utility model also provides a kind of power splitter component, and it includes dielectric-slab, is set side by side with least on dielectric-slab
Two power splitters as above.
Preferably, it is provided with short circuit metallic between the two neighboring power splitter and/or in power splitter component blank space
Via bar band.
Compared with prior art, this utility model has advantages below：
(1) prior art conventional design method design power splitter transformer section length will working frequency range λ/4, work as work
Multi-stage transformation section being accomplished by as bandwidth and realizing matching impedance, this method for designing causes the power splitter physical size mistake for designing
Greatly, Insertion Loss is big, and high cost.This utility model, with reference to open-circuit line matching technique, greatly reduces work(using bending line structure
Divide device physical size.
(2) prior art conventional design method design one point of four power splitter need to realize first one-to-two again one-to-two and
It is coupled structure, this utility model directly dispenses second level one-to-two, only uses primary structure, is directly total to the outfan of the second level two
Microstrip line is exported with one, and realizes good impedance matching.
(3) this utility model considers the durability of power splitter, and feeding networks different in practice has different work(
Divide than design requirement, multichannel, the function of different work(point ratios can be realized by increasing and decreasing output port, changing output port impedance,
This design can be significantly reduced the species of power splitter, and need not change power splitter.
(4) the conventional cable power splitter of prior art is using different impedance cable cascade welding, but is related to one point
More than three tunnels, assembling just becomes complicated, and is easily caused loading error using different impedance cables, and this utility model is adopted
PCB printed circuit board technologies, improve the concordance of power splitter performance, production assembling of being more convenient for.
【Description of the drawings】
Fig. 1 is this utility model power splitter axonometric chart；
Fig. 2 is this utility model power splitter Facad structure figure；
Fig. 3 is one point of four road standing wave pattern of this utility model power splitter；
Fig. 4 is this utility model power splitter one-to-two road embodiment schematic diagram；
Fig. 5 is the intrinsic curve chart of this utility model power splitter one-to-two road work(；
Fig. 6 is one point of three tunnel embodiment schematic diagram of this utility model power splitter；
Fig. 7 is the structure chart that this utility model power splitter two is placed side by side.
【Specific embodiment】
Fig. 1 and Fig. 2 is referred to, this utility model power splitter embodiment is specifically provided with microstrip line in the front of dielectric-slab 1, be situated between
The back side of scutum 1 is provided with metal ground plane 2, and the microstrip line includes main microstrip line 3, input microstrip line 101 and two output microstrip lines
106, in the present embodiment the main microstrip line 3 is " bow " font, and the input microstrip line 101 connects the stage casing of main microstrip line 3, this two
Output microstrip line 106 connects respectively the two ends of main microstrip line 3, and the main microstrip line 3 and two output microstrip lines 106 set in symmetrical structure
Put.
The dielectric-slab 1 is PCB, and using high-k, low-loss dielectric board material, the circuit board is adopted
Integrated design, whole PCB length and width are each about λ/4 of working frequency range.
The end of input microstrip line 101 be input port port1, this two output microstrip line 106 be respectively equipped with two it is defeated
Exit port totally four output ports port2, port3, port4, port5, in specific embodiment, four output port port2,
Port3, port4, port5 are separately positioned on the both sides of output microstrip line 106.This utility model power splitter is using bending structure
Microstrip line, four output ports share two-by-two an output microstrip line, with reference to open-circuit line matching technique so that power divider structure is tight
Gather, compare that conventional design method physical size is less, reducing cost, working band width, and this utility model can pass through
Increase and decrease output port, change output port impedance realize multichannel, the function of different work(point ratios, and this design can be significantly reduced work(
Divide the species of device, and power splitter need not be changed, the power division network structure that flexibly can be needed according to antenna for base station feeding network
The way and work(point ratio of adjustment output, realizes the power splitter of the various work(point ratios of multichannel.
The input microstrip line 101 is provided with the first Input transformation section 1011, the second Input transformation section 1012, by the first input
Transforming section 1011, the second Input transformation section 1012 are connected with main microstrip line stage casing 102, and the input microstrip line 101 is " L " of bending
Shape structure, is open into vertical with the main stage casing 102 of microstrip line 3 of " bow " font.The main microstrip line stage casing 102 separates two one to both sides
Two transforming sections 103, the first Input transformation section 1011 are divided to become " mountain " word with two one-to-two transforming section groups 103 of main microstrip line
Shape bending structure.This structure helps diminution work(point plate bulk.
The first Input transformation section 1011 is λ/16～λ/32 with two length of one-to-two transforming section 103, and λ is work frequency
The wavelength of section.
Two one-to-two transforming sections 103 of the main microstrip line 3 mutually dorsad bend respectively and extend again after upwardly extending one section
One section bends still further below, forms the " u "-shaped of two handstand.Two one-to-two transforming sections are respectively equipped with " u "-shaped turning recess
The the first open circuit minor matters 104 for extending downwardly, the end for being somebody's turn to do the main both sides of microstrip line 3 of " bow " font is respectively equipped with the second open circuit minor matters line
105.This two output microstrip lines 106 and the main both sides latter ends of microstrip line 3 of " bow " font are into longitudinally perpendicular.
The length of the first open circuit open circuit minor matters 105 of minor matters 104 and second is λ/8 either λ/16 or λ/32, and λ is work frequency
The wavelength of section, each open circuit minor matters can be unequal width.
Short circuit metallic via bar band 4 is provided between each microstrip line.Short circuit metallic via bar band 4 can reduce micro-strip
Coupling between line, improves microstrip line capacity of resisting disturbance.
The output port of this utility model power splitter can be used all, it is also possible to partly using and remaining is vacant, and
With reference to arranging by different impedances, the flexible allotment of power splitter output way and the regulation of different centimetre ratio can be realized.
Used as preferred embodiment, four output ports, only with three ports of welding, can become one point with vacant one
Three road power splitters；Further, two ports of that one end welding of described two ports of welding can be different impedances,
Realize different work(point ratios.Used as preferred another embodiment, four output ports can be each vacant one with both sides, only uses
Two ports of welding, become one-to-two road power splitter.
In this utility model embodiment, one point of four power splitter of design of Simulation, the long 80mm of whole PCB is wide
40mm, physical size is about λ/4 of working frequency range.Input port port1 is set to 50 ohm, output port port2, port3,
Port4, port5 are 50 ohm.Fig. 3 is one point of four power splitter simulation result standing wave pattern of this utility model embodiment, and work is frequently
Section is 600-960MHz, and power splitter is less than 1.15 in working frequency range standing internal wave, and with good impedance matching property, satisfaction is used
Require.
Refer to Fig. 4～6, radiofrequency signal is input into by input port port1, then by output port port2, port3,
Port4, port5 are exported.Input RF cable inner core 201 welds together with input microstrip line 101, cable medium layer 202
Just in the bayonet socket of input, cable shielding layer 203 welds together with back side block of metal ground plane 2.Outfan radio frequency line
Cable inner core 201 welds together with output microstrip line 106, and cable medium layer 202 is just in the bayonet socket of outfan, cable shielding layer
203 weld together with back side block of metal ground plane 2.
Refer to Fig. 4, this utility model power splitter one-to-two road embodiment schematic diagram, on the basis of Fig. 2 embodiments, no
Change any structure of power splitter, input port port1 incoming radio frequency signals only use port2 and two output ports of port3, separately
Outer two each output ports are vacant, and now power splitter becomes one-to-two power splitter, and Fig. 5 is the intrinsic song of one-to-two power splitter work(
Line chart, it can be seen that output amplitude fluctuation is little, fluctuating margin -3.06～-3.09dB of scope.
Fig. 6 is one point of three tunnel embodiment schematic diagram of this utility model power splitter.Input port port1 incoming radio frequency signals,
Output port port5 is vacant, and other output ports access output cable or joint, and now power splitter becomes one point of three work(point
Device.Special output port two output port parallel connections of port3 and port4, two ports can be accessed identical or different
Impedance cable, realizes different work(point ratios.Such as, when output port port2, port3, port4 access 50 ohm of cables, that
Three output work point ratios are 2:1:1；When output port port2 accesses 50 ohm of cables, output port port3 accesses 35 Europe
Nurse cable, output port port4 accesses 75 ohm of cables, then now three output work point ratios are 3:2:1.This design is aobvious
So can flexibly improve the freedom of design work(point ratio.
Refer to Fig. 7, this utility model power splitter component is that to be set side by side with least two on dielectric-slab 1 as described above
Power splitter.Short circuit metallic via bar band is equipped between the two neighboring power splitter and in power splitter component blank space
4, short circuit metallic via bar can reduce coupling between microstrip line with 4, improve microstrip line capacity of resisting disturbance.
In this utility model, power splitter adopts snakelike microstrip line construction, realizes the Miniaturization Design of power splitter.Fully
Space availability ratio is improved using bending line structure.Impedance match technique phase is adjusted with conventional λ/4 transforming section and λ/4 open circuit minor matters line
Than, special shorter transformer section, shorter open circuit minor matters line bending structure cause power splitter layout structure simply compact,
On the premise of function admirable, size reduction is ensured, the area utilization of PCB is improve, concordance is high, reduces into
This, it is easy to assembly.Conventional power splitter work(point just cannot be adjusted again after designing after work(point ratio-dependent, and this practicality is new
Type can realize multichannel, the function of different work(point ratios by increasing and decreasing output port, changing output port impedance, and this design can pole
The species of big reduction power splitter, and power splitter need not be changed, it is cost-effective, feedback is conducive to when antenna for base station is designed
Electric network layout.
Preferred embodiment of the present utility model is the foregoing is only, protection domain of the present utility model is not limited thereto,
Any equivalent transformation based in technical solutions of the utility model is belonged within this utility model protection domain.
Claims (10)
1. a kind of power splitter, it includes dielectric-slab, and the dielectric-slab front is provided with microstrip line, and medium back is provided with metallic ground
Face, it is characterised in that the microstrip line includes main microstrip line, input microstrip line and two output microstrip lines, and the main microstrip line is Serpentiss
Shaped microstrip line, the input microstrip line connects main microstrip line stage casing, and this two output microstrip lines connect respectively main microstrip line two ends, should
Input microstrip line end is input port, and this two output microstrip lines are respectively equipped with two output ports totally four output ports.
2. power splitter as claimed in claim 1, it is characterised in that the snakelike main microstrip line specially " bends " font, the master
Microstrip line and two output microstrip lines are arranged in symmetrical structure.
3. power splitter as claimed in claim 2, it is characterised in that this two output microstrip lines are vertical with the main microstrip line of " bow " font
To vertical.
4. power splitter as claimed in claim 2 or claim 3, it is characterised in that the input microstrip line is " L " shape structure of bending, with
The main microstrip line of " bow " font is laterally vertical.
5. power splitter as claimed in claim 1, it is characterised in that the input microstrip line be provided with the first Input transformation section, second
Input transformation section, is connected, the main microstrip line stage casing by the first Input transformation section, the second Input transformation Duan Yuzhu microstrip lines stage casing
Separate two one-to-two transforming sections to both sides, the first Input transformation section and two one-to-two tamper lengths be λ/16～λ/
32, λ is the wavelength of working frequency range.
6. power splitter as claimed in claim 5, it is characterised in that two point of the first Input transformation Duan Yuzhu microstrip lines
Two transforming sections consist of " mountain " font bending structure.
7. power splitter as claimed in claim 5, it is characterised in that two one-to-two transforming sections of the main microstrip line extend simultaneously curved
Folding forms the " u "-shaped of two handstand.
8. power splitter as claimed in claim 7, it is characterised in that two one-to-two transforming sections are in " u "-shaped turning recess point
The the first open circuit minor matters for extending downwardly are not provided with, the end for being somebody's turn to do the main microstrip line both sides of " bow " font is respectively equipped with the second open circuit minor matters
The length of line, the first open circuit minor matters and the second open circuit minor matters is λ/8 either λ/16 or λ/32, and λ is the wavelength of working frequency range.
9. a kind of power splitter component, it includes dielectric-slab, it is characterised in that at least two are set side by side with dielectric-slab as weighed
Profit requires the power splitter described in 1～8 any one.
10. power splitter component as claimed in claim 9, it is characterised in that between the two neighboring power splitter and/or
Power splitter component blank space is provided with short circuit metallic via bar band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620986060.XU CN206116581U (en) | 2016-08-30 | 2016-08-30 | Ware is divided to merit and subassembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620986060.XU CN206116581U (en) | 2016-08-30 | 2016-08-30 | Ware is divided to merit and subassembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206116581U true CN206116581U (en) | 2017-04-19 |
Family
ID=58514119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620986060.XU Active CN206116581U (en) | 2016-08-30 | 2016-08-30 | Ware is divided to merit and subassembly thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN206116581U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229595A (en) * | 2016-08-30 | 2016-12-14 | 广东通宇通讯股份有限公司 | Power splitter and assembly thereof |
| CN115051132A (en) * | 2022-06-22 | 2022-09-13 | 上海航天电子通讯设备研究所 | Sawtooth-shaped strong-coupling power distribution network |
| CN115498386A (en) * | 2022-09-26 | 2022-12-20 | 昆山立讯射频科技有限公司 | Power divider |
-
2016
- 2016-08-30 CN CN201620986060.XU patent/CN206116581U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229595A (en) * | 2016-08-30 | 2016-12-14 | 广东通宇通讯股份有限公司 | Power splitter and assembly thereof |
| CN115051132A (en) * | 2022-06-22 | 2022-09-13 | 上海航天电子通讯设备研究所 | Sawtooth-shaped strong-coupling power distribution network |
| CN115051132B (en) * | 2022-06-22 | 2024-05-10 | 上海航天电子通讯设备研究所 | Sawtooth-shaped strong-coupling power division network |
| CN115498386A (en) * | 2022-09-26 | 2022-12-20 | 昆山立讯射频科技有限公司 | Power divider |
| CN115498386B (en) * | 2022-09-26 | 2024-01-26 | 苏州立讯技术有限公司 | Power divider |
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