CN207572511U - Wilkinson power divider - Google Patents
Wilkinson power divider Download PDFInfo
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- CN207572511U CN207572511U CN201721573246.3U CN201721573246U CN207572511U CN 207572511 U CN207572511 U CN 207572511U CN 201721573246 U CN201721573246 U CN 201721573246U CN 207572511 U CN207572511 U CN 207572511U
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- power splitter
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- wilkinson
- power divider
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Abstract
The utility model discloses a kind of Wilkinson power divider, which includes：Cascade multistage work(separation structure, wherein first order work(separation structure are cascaded with second level work(separation structure, and first order work(separation structure includes the first power splitter, and second level work(separation structure includes the second power splitter and third power splitter；First power splitter, the second power splitter and third power splitter are three rank one-to-two road power splitters；First power splitter has the first output port and second output terminal mouth, and the input port of the second power splitter is connected to the first output port of the first power splitter, and the input port of third power splitter is connected to the second output terminal mouth of the first power splitter.The utility model realizes broadband effects by the Wilkinson work(separation structure with the impedance transformer of multistage several λ/4.
Description
Technical field
The utility model is related to a kind of power divider more particularly to a kind of Wilkinson power dividers.
Background technology
Power divider is the microwave that input signal power is divided into a kind of multiport that equal or different several roads export
Network is widely used in the microwave radios circuits such as the high power devices such as radar, multichannel trunking traffic machine, as China's military affairs fill
Preparation exhibition is advanced by leaps and bounds, and more and more wider to the application of the application of microwave power distributor highly reliable in broadband, demand rapidly increases
Add, particularly in microwave measurement and electronic warfare system, to improve the practicability of equipment and multi signal capturing ability, often select
It is used as system schema with broadband system, proposes the covering requirement of full range bandwidth to power splitter at this time.
But conventional single order No. two power divider of the prior art, only when working frequency is equal to centre frequency
Just preferably it can be matched and be isolated, the frequency band of this conventional single order No. two power divider is relatively narrow.
Utility model content
For the problem of power divider frequency band is relatively narrow in the relevant technologies, the utility model proposes a kind of Wilkinson powers
Distributor can realize broadband effects.
What the technical solution of the utility model was realized in：
One side according to the present utility model provides a kind of Wilkinson power divider, including：It is cascade multistage
Work(separation structure, wherein first order work(separation structure are cascaded with second level work(separation structure, and first order work(separation structure includes the first power splitter,
Second level work(separation structure includes the second power splitter and third power splitter；First power splitter has the first output port and the second output
Port, the input port of the second power splitter are connected to the first output port of the first power splitter, the input port of third power splitter
It is connected to the second output terminal mouth of the first power splitter.
In one embodiment, the first power splitter, the second power splitter and third power splitter are three rank one-to-two Lu Gongfen
Device.
In one embodiment, Wilkinson power divider is formed by the microstrip line on dielectric-slab and dielectric-slab.
Wherein, each in the first power splitter, the second power splitter and third power splitter includes：Symmetrical two
Outgoing route, two outgoing routes respectively include the impedance transformer of the arc-shaped λ of cascade more piece/4.
Wherein, each in the first power splitter, the second power splitter and third power splitter further includes：It is connected to every pitch circle arc
Isolation resistance between the impedance transformer of shape λ/4.
Wherein, the joint number of the impedance transformer of the arc-shaped λ of more piece/4 is three sections.
Wherein, in the transmission direction of outgoing route, the impedance transformer of cascade more piece arc-shaped λ/4.
In one embodiment, dielectric-slab is F4B dielectric-slabs.
In one embodiment, Wilkinson power divider has axis, and axis is in the input port of the first power splitter
Transmission direction on extend, power divider is symmetric about the axis.
In one embodiment, the exponent number of cascade multistage work(separation structure is more than two ranks.
The utility model can realize broadband effects by the Wilkinson work(separation structure with multistage number.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the schematic diagram according to the Wilkinson power divider of the utility model embodiment；
Fig. 2 is the curve graph of the return loss of the Wilkinson power divider in Fig. 1；
Fig. 3 is the curve graph of the insertion loss of the Wilkinson power divider in Fig. 1；
Fig. 4 is the schematic diagram of the phase characteristic curve of the Wilkinson power divider in Fig. 1；
Fig. 5 is the curve graph of the isolation of the Wilkinson power divider in Fig. 1.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art's all other embodiments obtained all belong to
In the range of the utility model protection.
As shown in Figure 1, Wilkinson (Wilkinson) power divider 100 according to the utility model embodiment includes：
Cascade multistage work(separation structure, wherein first order work(separation structure 110 are cascaded with second level work(separation structure 120, first order work(point knot
Structure 110 includes the first power splitter 112, and second level work(separation structure 120 includes the second power splitter 122 and third power splitter 124；First
Power splitter 112 has the first output port 114 and second output terminal mouth 116, and the input port 126 of the second power splitter 122 connects
To the first output port 114 of the first power splitter 112, the input port 128 of third power splitter 124 is connected to the first power splitter
112 second output terminal mouth 116.
The above-mentioned technical proposal of the utility model by the Wilkinson work(separation structure with multistage number, can realize width
Band effect.
In one embodiment, as shown in Figure 1, the first power splitter 112, the second power splitter 122 and third power splitter 124 are equal
For three rank one-to-two road power splitters.That is, in the first power splitter 112, the second power splitter 122 and third power splitter 124
Each tool is there are one input port and two output ports, power divider 100 include an input port port1,4
Output port port2, port3, port4, port5, power divider 100 are 1 point of No. 4 power divider.It is alternatively possible to root
According to practical situations, the output port quantity of each power splitter is configured.
In one embodiment, Wilkinson power divider 100 is formed by the microstrip line on dielectric-slab and dielectric-slab.
In one embodiment, dielectric-slab is F4B dielectric-slabs.Specifically, in a specific embodiment, power distribution
Device 100 is made of the microstrip line being printed on the F4B dielectric-slabs that relative dielectric constant is 2.2, thickness is 0.5mm.
Wherein, each in the first power splitter 112, the second power splitter 122 and third power splitter 124 includes：Mutually
Symmetrical two outgoing routes 130, two outgoing routes 130 respectively include the impedance transformer of the arc-shaped λ of cascade more piece/4.
Wherein, as shown in Figure 1, the arc-shaped λ of more piece/4 the joint number of impedance transformer be three sections.By by the first power splitter
112nd, the joint number of the impedance transformer of the arc-shaped λ in the second power splitter 122 and third power splitter 124/4 is set as three sections, can
Widen the frequency band of Wilkinson power divider 100.
It is alternatively possible to according to practical situations, the joint number of the impedance transformer of arc-shaped λ/4 is configured.It that is, can
The joint number of the impedance transformer of arc-shaped λ/4 is set greater than three sections or less than three sections.
Wherein, each in the first power splitter 112, the second power splitter 122 and third power splitter 124 further includes：Connection
Isolation resistance between the impedance transformer of every pitch circle arc λ/4.Specifically, in the embodiment shown in fig. 1, in outgoing route
In 130 transmission direction, the impedance transformer of first segment to third pitch circle arc λ/4 cascades successively.First isolation resistance R1 connections
Between the impedance transformer of the arc-shaped λ of first segment/4, the second isolation resistance R2 is connected to the impedance transformer of the second pitch circle arc λ/4
Between, third isolation resistance R3 is connected between the impedance transformer of third pitch circle arc λ/4.
Wherein, in the transmission direction of outgoing route 130, the impedance transformer of cascade more piece arc-shaped λ/4.
In one embodiment, Wilkinson power divider 100 has axis (not shown), and axis is in the first power splitter
Input port transmission direction on extend, power divider 100 is about the axisymmetrical.
In one embodiment, the exponent number of cascade multistage work(separation structure is more than two ranks.It that is, can be in Fig. 1 institutes
On the basis of the first power splitter 112, the second power splitter 122 and the third power splitter 124 that show, increase the impedance transformer of arc-shaped λ/4
Joint number.
In the embodiment shown in fig. 1, according to Wilkinson power divider operation principle determine micro belt line width and
The resistance value of three isolation resistances R1, R2 and R3 carry out simulation optimization with ADS softwares, and return loss is as shown in Fig. 2, be inserted into
It is lost as shown in figure 3, phase characteristic curve is as shown in figure 4, isolation is as shown in Figure 5.As shown in Fig. 2 to Fig. 5, the Wilkinson
Power divider 100 can realize the bandwidth of 8GHz-17GHz, and have relatively low insertion loss, stable phase characteristic, with
And higher interport isolation.
It should be understood that the utility model is not limited to above-mentioned embodiment, those skilled in the art are new in this practicality
Under the design of type, under the premise of the principle of the utility model is not departed from, different deformation and replacement can be made, such as by F4B
Dielectric-slab changes the plank of other relative dielectric constants into, changes the joint number of the impedance transformer of arc-shaped λ/4 in power splitter, increases grade
Join series and change port number of power splitter etc..
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of Wilkinson power divider, which is characterized in that including cascade multistage work(separation structure, wherein first order work(point
Structure is cascaded with second level work(separation structure, and first order work(separation structure includes the first power splitter, and second level work(separation structure includes second
Power splitter and third power splitter；
First power splitter has the first output port and second output terminal mouth, and the input port of the second power splitter is connected to institute
The first output port of the first power splitter is stated, the input port of third power splitter is connected to the second output of first power splitter
Port.
2. Wilkinson power divider according to claim 1, which is characterized in that first power splitter, the second work(
It is three rank one-to-two road power splitters to divide device and third power splitter.
3. Wilkinson power divider according to claim 1, which is characterized in that the Wilkinson power divider
It is formed by the microstrip line on dielectric-slab and the dielectric-slab.
4. Wilkinson power divider according to claim 3, which is characterized in that first power splitter, the second work(
Each in point device and third power splitter includes：
Two symmetrical outgoing routes, two outgoing routes respectively include the impedance of the arc-shaped λ of cascade more piece/4 and become
Parallel operation.
5. Wilkinson power divider according to claim 4, which is characterized in that first power splitter, the second work(
Each in point device and third power splitter further includes：The isolation resistance being connected between the impedance transformer of every pitch circle arc λ/4.
6. Wilkinson power divider according to claim 4, which is characterized in that the impedance of the arc-shaped λ of more piece/4
The joint number of converter is three sections.
7. Wilkinson power divider according to claim 4, which is characterized in that in the transmission side of the outgoing route
Upwards, the impedance transformer of cascade more piece arc-shaped λ/4.
8. Wilkinson power divider according to claim 3, which is characterized in that the dielectric-slab is F4B dielectric-slabs.
9. Wilkinson power divider according to claim 1, which is characterized in that the Wilkinson power divider
With axis, the axis extends in the transmission direction of the input port of the first power splitter, the Wilkinson power distribution
Device is about the axisymmetrical.
10. Wilkinson power divider according to claim 1, which is characterized in that the cascade multistage work(point knot
The exponent number of structure is more than two ranks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573246.3U CN207572511U (en) | 2017-11-22 | 2017-11-22 | Wilkinson power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573246.3U CN207572511U (en) | 2017-11-22 | 2017-11-22 | Wilkinson power divider |
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| Publication Number | Publication Date |
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| CN207572511U true CN207572511U (en) | 2018-07-03 |
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| CN201721573246.3U Active CN207572511U (en) | 2017-11-22 | 2017-11-22 | Wilkinson power divider |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380179A (en) * | 2019-08-20 | 2019-10-25 | 合肥学院 | A kind of broadband 5G Wilkinson power divider |
| CN111830093A (en) * | 2020-07-10 | 2020-10-27 | 成都信息工程大学 | Real-time detection method and device for micro dielectric change of material based on radio frequency technology |
| WO2021063302A1 (en) * | 2019-09-30 | 2021-04-08 | 深圳市中兴微电子技术有限公司 | Power divider, adjustment method, power division method, storage medium, and electronic device |
-
2017
- 2017-11-22 CN CN201721573246.3U patent/CN207572511U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380179A (en) * | 2019-08-20 | 2019-10-25 | 合肥学院 | A kind of broadband 5G Wilkinson power divider |
| WO2021063302A1 (en) * | 2019-09-30 | 2021-04-08 | 深圳市中兴微电子技术有限公司 | Power divider, adjustment method, power division method, storage medium, and electronic device |
| CN111830093A (en) * | 2020-07-10 | 2020-10-27 | 成都信息工程大学 | Real-time detection method and device for micro dielectric change of material based on radio frequency technology |
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