CN107086345B - Ultra wide band wilkinson power divider - Google Patents
Ultra wide band wilkinson power divider Download PDFInfo
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- CN107086345B CN107086345B CN201710225684.9A CN201710225684A CN107086345B CN 107086345 B CN107086345 B CN 107086345B CN 201710225684 A CN201710225684 A CN 201710225684A CN 107086345 B CN107086345 B CN 107086345B
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- microstrip line
- power divider
- wilkinson power
- wide band
- ultra wide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
Abstract
The present invention relates to a kind of ultra wide band Wilkinson power dividers, including dielectric layer, it is attached to the signal metal layer of the dielectric layer side, with the metal back layer for being attached to the dielectric layer other side, the signal metal layer includes microwave transmission branch, for microwave signal the output of multichannel microwave branch signal will to be divided into all the way, with microstrip line prolongation structure, the microstrip line prolongation structure is made of microstrip line, one end of the microstrip line prolongation structure is connected to the microwave transmission branch road, the other end is hanging, the length of the microstrip line is 1/4 central wavelength of the microwave by the ultra wide band Wilkinson power divider, for increasing the pole of Wilkinson power divider；By the way that microstrip line prolongation structure is arranged in the transmission branch of Wilkinson power divider, increases the pole of Wilkinson power divider, its frequency band can be widened, and then obtain a kind of simple ultra wide band Wilkinson power divider of structure.
Description
Technical field
The present invention relates to power splitter fields, more particularly to a kind of ultra wide band Wilkinson power divider.
Background technique
Power splitter has a wide range of applications in microwave and millimeter wave telecommunication circuit, such as in microwave power detector, mixing
There is application in numerous circuits such as device, phase-detection and TR component.Currently, with the fast development of wireless communication technique, device
The broadband of part, low-loss become the research hotspot in microwave radio circuit, and as ultra-wideband antenna, ultra wide band filter
The research and application of the ultra wide bands device such as device, the demand to ultra wide band power divider also become increasing.
But the narrower bandwidth of traditional Wilkinson power divider, the serious Wilkinson power divider that constrains is in ultra-wide
With the use in field.
Summary of the invention
Based on this, it is necessary to aiming at the problem that traditional Wilkinson power divider narrower bandwidth, it is simple to provide a kind of structure
Ultra wide band Wilkinson power divider.
A kind of ultra wide band Wilkinson power divider, including dielectric layer are attached to the signal metal layer of the dielectric layer side,
With the metal back layer for being attached to the dielectric layer other side, the signal metal layer includes：
Microwave transmission branch, for microwave signal the output of multichannel microwave branch signal will to be divided into all the way；
Microstrip line prolongation structure, is made of microstrip line, and one end of the microstrip line prolongation structure is connected to the microwave and passes
Defeated branch road, the other end is hanging, and the length of the microstrip line is the microwave by the ultra wide band Wilkinson power divider
1/4 central wavelength, for increasing the pole of Wilkinson power divider.
Above-mentioned ultra wide band Wilkinson power divider, including dielectric layer are attached to the signal metal layer of the dielectric layer side,
With the metal back layer for being attached to the dielectric layer other side.The signal metal layer includes that microwave transmission branch and microstrip line are expanded
Structure, the microstrip line prolongation structure are made of microstrip line, and one end of the microstrip line prolongation structure is connected to the microwave and passes
Defeated branch road, the other end is hanging, for increasing the pole of Wilkinson power divider；Pass through the transmission branch in Wilkinson power divider
Road setting microstrip line prolongation structure, increases the pole of Wilkinson power divider, can widen its frequency band, and then obtain a kind of knot
The simple ultra wide band Wilkinson power divider of structure.
The microwave transmission branch includes the first trunk microstrip line and the second trunk micro-strip in one of the embodiments,
Line, one end of the microstrip line prolongation structure are connected to the transmission between the first trunk microstrip line and the second trunk microstrip line
On channel, the other end is hanging.
The microstrip line prolongation structure includes the single for being parallel to the setting of microwave transmission direction in one of the embodiments,
Microstrip line microstrip line branch identical with two line structures being arranged perpendicular to microwave transmission direction, the single microstrip line are connected to
Between the first trunk microstrip line and the second trunk microstrip line, it is micro- that one end of every road microstrip line branch is separately connected the single
One end with line, the other end are hanging.
In one of the embodiments, the microstrip line branch include the first microstrip line and the second microstrip line, described first
One end of microstrip line connects one end of the single microstrip line, and the other end of first microstrip line connects second microstrip line
One end, the other end of second microstrip line is hanging.
The impedanoe ratio of second microstrip line and first microstrip line is 2.25 in one of the embodiments,:1.
The microwave transmission branch has two in one of the embodiments, and every microwave transmission branch road is provided with
The microstrip line prolongation structure.
It in one of the embodiments, further include isolation resistance, one end of the isolation resistance connects a microwave transmission
One end that the first trunk microstrip line is connect with single microstrip line described in branch, the other end of the isolation resistance connect another
One end that the first trunk microstrip line is connect with single microstrip line described in microwave transmission branch.
The material of the signal metal layer and metal back layer is gold in one of the embodiments,.
The resistance value of the single microstrip line is 50 Ω in one of the embodiments,.
The resistance value of the isolation resistance is 100 Ω in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of ultra wide band Wilkinson power divider in an embodiment；
Fig. 2 is the structural schematic diagram of ultra wide band Wilkinson power divider in another embodiment；
Fig. 3 is the waveform diagram of the port reflection coefficient of ultra wide band Wilkinson power divider in an embodiment；
Fig. 4 is the waveform diagram of the output port Insertion Loss of ultra wide band Wilkinson power divider in an embodiment；
Fig. 5 is the phase diagram of the output port Insertion Loss of ultra wide band Wilkinson power divider in an embodiment；
Fig. 6 is the waveform diagram of the output port isolation of ultra wide band Wilkinson power divider in an embodiment.
Specific embodiment
It is the structural schematic diagram of ultra wide band Wilkinson power divider in an embodiment referring to Fig. 1, Fig. 1.
In the present embodiment, which includes dielectric layer, is attached to the dielectric layer side
Signal metal layer, and it is attached to the metal back layer of the dielectric layer other side, the signal metal layer includes microwave transmission branch
11,12 and microstrip line expand knot 20,21.
Microwave transmission branch 11,12 will be for that microwave signal will be divided into the output of multichannel microwave branch signal all the way.
Traditional Wilkinson power divider includes dielectric layer, is attached to the signal metal layer of the dielectric layer side and attached
The dielectric layer other side metal back layer.Such as two power splitters, signal metal layer have two microwave transmission branches 11,
12, every microwave transmission branch 11,12 includes concatenated microstrip line, and microwave enters Weir by input port, i.e. microstrip line 10
Skin effect is generated when golden gloomy power splitter, so that microwave concentrates on transmitting positioned at the signal metal layer on surface layer, microwave passes through two
It is divided into two-way microwave branch signal after microwave transmission branch 11,12, and then microwave is subjected to two function point.The Wilkinson power divider
For two power splitters, it is not limited to two power splitters.
Specifically, the dielectric layer uses dielectric constant for 9.9 aluminium oxide ceramics, signal metal layer and metal back layer are adopted
With gold, golden conductivity is high, intrinsic frequency is high, skin effect is good.
Microstrip line prolongation structure 20,21 is made of microstrip line, and one end of microstrip line prolongation structure 20 is connected to microwave transmission
On branch 11, the other end is hanging, and one end of microstrip line prolongation structure 21 is connected on the microwave transmission branch 12, and the other end is outstanding
Sky, the length of the microstrip line is 1/4 central wavelength of the microwave by the ultra wide band Wilkinson power divider, for increasing
Add the pole of Wilkinson power divider, which refers to traditional Wilkinson power divider.
Microstrip line prolongation structure is respectively provided on every microwave transmission branch 11,12 of traditional Wilkinson power divider
20,21, which is made of microstrip line, and the length of every microstrip line is by the ultra wide band Weir
1/4 central wavelength of the microwave of the gloomy power splitter of gold.One end of the microstrip line prolongation structure 20,21 is connected to microwave transmission branch
11, on 12, the other end is hanging, so that microstrip line open circuit, 1/4 central wavelength open circuit microstrip line can be equivalent to one to ground electricity
Hold, and then the pole of Wilkinson power divider can be increased, and then widen its frequency band.
Microwave transmission branch 11 includes the first trunk microstrip line 111 and the second trunk micro-strip in one of the embodiments,
Line 112, microwave transmission branch 12 include the first trunk microstrip line 121 and the second trunk microstrip line 122.Microstrip line prolongation structure 20
One end be connected in the transmission channel between the first trunk microstrip line 111 and the second trunk microstrip line 112, the other end is outstanding
It is empty；One end of microstrip line prolongation structure 21 is connected to the transmission between the first trunk microstrip line 121 and the second trunk microstrip line 122
On channel, the other end is hanging.
The second trunk microstrip line 112,122 on two microwave transmission branches 11,12 is located at respectively as two branch
The output port on road, and then will be exported by the microwave branch signal after two function point.
Referring to fig. 2, the microstrip line prolongation structure 20 on microwave transmission branch 11 includes parallel in one of the embodiments,
In the micro-strip identical with two line structures being arranged perpendicular to microwave transmission direction of single microstrip line 203 of microwave transmission direction setting
Line branch, the microstrip line prolongation structure 21 on microwave transmission branch 12 include the single microstrip line 213 being laterally arranged and longitudinal set
The identical microstrip line branch of two line structures set.Single microstrip line 203 is connected to the first trunk micro-strip of microwave transmission branch 11
Between line 111 and the second trunk microstrip line 112, single microstrip line 213 is connected to the first trunk micro-strip of microwave transmission branch 12
Between line 121 and the second trunk microstrip line 122.One end of the identical microstrip line branch of 20 liang of line structures of microstrip line prolongation structure point
Not Lian Jie single microstrip line 203 both ends, the other end is hanging, the identical microstrip line branch of 21 liang of line structures of microstrip line prolongation structure
One end be separately connected the both ends of single microstrip line 213, the other end is hanging.
Microstrip line prolongation structure 20,21 forms a bandpass filter, can increase the pole of Wilkinson power divider, open up
Its wide frequency.Meanwhile the microstrip line prolongation structure is made of microstrip line, each microstrip line is formed with dielectric layer, metal back layer respectively
Capacitor, according to the charge-discharge characteristic of capacitor, the small power consumption generated, so that the Insertion Loss of the ultra wide band Wilkinson power divider is very
It is low, loss of the microwave in transmission process is reduced, the transimission power of microwave is improved.
Further, the second microstrip line 202 and the first microstrip line 201, the second microstrip line 205 and the first microstrip line 204, the
The impedanoe ratio of two microstrip lines 212 and the first microstrip line 211, the second microstrip line 215 and the first microstrip line 214 is 2.25:1,
At this time the ultra wide band Wilkinson power divider can by microwave band it is most wide, adjust the impedanoe ratio according to actual needs,
Available desired frequency band width.
Second microstrip line 202 is 1/4 central wavelength, and is in open-circuit condition, can be equivalent to one and arrives ground capacitor, for
It is equivalent to for microwave signal and is shorted to ground, concatenated first microstrip line 201 is also 1/4 central wavelength, from the first microstrip line 201
One end see into and be equivalent to open circuit, to form a pole.
Ring is emulated in HFSS referring to the port reflection coefficient that Fig. 3, Fig. 3 are ultra wide band Wilkinson power divider in an embodiment
Waveform diagram under border.Abscissa indicates frequency, and ordinate indicates amplitude, and unit is decibel, for ultra wide band Wilkinson function point
The reflection coefficient of the input port of device and output port with frequency situation of change.Wherein, curve 31 indicates input port reflection
The waveform diagram of coefficient S (1,1), curve 32 indicate the waveform diagram of an output port reflection coefficient S (2,2), and curve 33 indicates another
The waveform diagram of output port reflection coefficient S (3.3).It can be seen that the ultra wide band Wilkinson power divider is in 18GHz~40GHz
Frequency band in, input port reflection coefficient S (1,1) be less than -15dB, two output port reflection coefficient S (2,2), S (3,3)
Less than -13.8dB.The reflection coefficient of the ultra wide band Wilkinson power divider is small, reflects low in energy consumption, transimission power height.
Referring to fig. 4, Fig. 4 is the waveform diagram of the output port Insertion Loss of ultra wide band Wilkinson power divider in an embodiment.It is horizontal
Coordinate representation frequency, ordinate indicate amplitude, and unit is decibel, are two output ports of ultra wide band Wilkinson power divider
Insertion Loss S (2,1) and S (3,1) with frequency situation of change.It can be seen that the ultra wide band Wilkinson power divider 18GHz~
In the frequency band of 40GHz, the Insertion Loss S (2,1) and S (3,1) of two output ports are less than 0.2dB.Guaranteeing two output ports
In the case that Insertion Loss is less than 0.2dB, the manageable microwave frequency of the ultra wide band Wilkinson power divider can be widened to 2 frequencys multiplication,
40/18>2 frequencys multiplication.
It is the phase diagram of the output port Insertion Loss of ultra wide band Wilkinson power divider in an embodiment referring to Fig. 5, Fig. 5.It is horizontal
Coordinate representation frequency, ordinate indicate that phase, unit are degree, are two output ports of ultra wide band Wilkinson power divider
The phase of Insertion Loss S (2,1) and S (3,1) with frequency situation of change.It can be seen that the ultra wide band Wilkinson power divider exists
In the frequency band of 18GHz~40GHz, the Insertion Loss phase of two output ports is almost the same, so that obtain after two function are divided to two
Road microwave branch signal phase is consistent, and function divides effect good.
In one of the embodiments, microstrip line branch include connect microwave transmission branch 11 the first microstrip line 201,
204, the first microstrip line 211,214 of connection microwave transmission branch 12, the second microstrip line 202 being connect with the first microstrip line 201,
The second microstrip line 205 being connect with the first microstrip line 204, the second microstrip line 212, Yi Jiyu being connect with the first microstrip line 211
Second microstrip line 215 of the first microstrip line 214 connection, the other end of the second microstrip line 202,205,212,215 are hanging.
The ultra wide band Wilkinson power divider further includes isolation resistance R, the isolation resistance in one of the embodiments,
One end of R connects first trunk microstrip line 111 is connect with the second trunk microstrip line 112 in a microwave transmission branch 11 one
End, the other end of the isolation resistance R connect the first trunk microstrip line 121 and second described in another microwave transmission branch 12
One end that trunk microstrip line 122 connects.
Isolation resistance R can reduce the interference between two microwave transmission branches 11,12, specifically, isolation resistance R
Resistance value be 100 Ω, according to its different sheet resistance of material can for 50 Ω/square, 60 Ω/square or other.
It is the waveform diagram of the output port isolation of ultra wide band Wilkinson power divider in an embodiment referring to Fig. 6, Fig. 6.
Abscissa indicates frequency, and ordinate indicates amplitude, and unit is decibel, is two output ends of ultra wide band Wilkinson power divider
Mouthful between isolation S (2,3) with frequency situation of change.It can be seen that the ultra wide band Wilkinson power divider 18GHz~
In the frequency band of 40GHz, the isolation S (2,3) of two output ports is less than -10dB, interfering with each other small.
The 203,213, first microstrip line of single micro-strip in microstrip line prolongation structure 20,21 in one of the embodiments,
201, the length of the 204,211,214 and second microstrip line 202,205,212,215 is by the ultra wide band Wilkinson function
Divide 1/4 central wavelength of the microwave of device.The central wavelength is the center frequency of the microwave by the ultra wide band Wilkinson power divider
The corresponding wavelength of rate.
Further, the resistance value of single microstrip line 203,213 is 50 Ω.
Above-mentioned ultra wide band Wilkinson power divider, on the microwave transmission branch road of traditional Wilkinson power divider insertion by
The microstrip line prolongation structure of microstrip line composition, can increase the pole of the Wilkinson power divider, and then widen its frequency band.This is micro-
Strip line structure include and be parallel to microwave transmission direction setting single microstrip line and perpendicular to microwave transmission direction setting two
The identical microstrip line branch of line structure forms a bandpass filter, which includes the first microstrip line interconnected
With the second microstrip line, the frequency bandwidth of its adjustable ultra wide band Wilkinson power divider of resistance value ratio is adjusted, according to demand
Ideal bandwidth can be obtained by being adjusted.The charge-discharge characteristic of capacitor, the small power consumption generated, so that the ultra-wide are utilized simultaneously
Insertion Loss with Wilkinson power divider is very low, reduces loss of the microwave in transmission process, improves the transimission power of microwave.
In addition, being provided with isolation circuit between two microwave transmission branches, it is possible to reduce the interference between two microwave transmission branches,
Improve the transmission quality of microwave.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of ultra wide band Wilkinson power divider, including dielectric layer are attached to the signal metal layer of the dielectric layer side, and
It is attached to the metal back layer of the dielectric layer other side, which is characterized in that the signal metal layer includes：
Microwave transmission branch, for microwave signal the output of multichannel microwave branch signal will to be divided into all the way；
Microstrip line prolongation structure, is made of microstrip line, and one end of the microstrip line prolongation structure is connected to the microwave transmission branch
On the road, the other end is hanging, and the length of every microstrip line is the microwave by the ultra wide band Wilkinson power divider
1/4 central wavelength, for increasing the pole of Wilkinson power divider；
The microstrip line prolongation structure includes being parallel to the single microstrip line of microwave transmission direction setting and perpendicular to microwave transmission
The identical microstrip line branch of two line structures of direction setting.
2. ultra wide band Wilkinson power divider according to claim 1, which is characterized in that the microwave transmission branch includes
First trunk microstrip line and the second trunk microstrip line, one end of the microstrip line prolongation structure are connected to the first trunk micro-strip
In transmission channel between line and the second trunk microstrip line, the other end is hanging.
3. ultra wide band Wilkinson power divider according to claim 2, which is characterized in that the single microstrip line is connected to
Between the first trunk microstrip line and the second trunk microstrip line, it is micro- that one end of every road microstrip line branch is separately connected the single
One end with line, the other end are hanging.
4. ultra wide band Wilkinson power divider according to claim 3, which is characterized in that the microstrip line branch includes the
One microstrip line and the second microstrip line, one end of first microstrip line connect one end of the single microstrip line, and described first is micro-
The other end with line connects one end of second microstrip line, and the other end of second microstrip line is hanging.
5. ultra wide band Wilkinson power divider according to claim 4, which is characterized in that second microstrip line with it is described
The impedanoe ratio of first microstrip line is 2.25:1.
6. ultra wide band Wilkinson power divider according to claim 5, which is characterized in that the microwave transmission branch has two
Item, every microwave transmission branch road are provided with the microstrip line prolongation structure.
7. ultra wide band Wilkinson power divider according to claim 6, which is characterized in that it further include isolation resistance, it is described
One end of isolation resistance connects one end that the first trunk microstrip line described in a microwave transmission branch is connect with single microstrip line,
The other end of the isolation resistance connects the first trunk microstrip line described in another microwave transmission branch and single microstrip line connects
The one end connect.
8. ultra wide band Wilkinson power divider according to claim 1, which is characterized in that the signal metal layer and metal
The material of bottom is gold.
9. ultra wide band Wilkinson power divider according to claim 3, which is characterized in that the resistance value of the single microstrip line
For 50 Ω.
10. ultra wide band Wilkinson power divider according to claim 7, which is characterized in that the resistance value of the isolation resistance
For 100 Ω.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225684.9A CN107086345B (en) | 2017-04-07 | 2017-04-07 | Ultra wide band wilkinson power divider |
| PCT/CN2018/076270 WO2018184425A1 (en) | 2017-04-07 | 2018-02-11 | Ultra-wideband wilkinson power divider |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710225684.9A CN107086345B (en) | 2017-04-07 | 2017-04-07 | Ultra wide band wilkinson power divider |
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| CN107086345A CN107086345A (en) | 2017-08-22 |
| CN107086345B true CN107086345B (en) | 2018-11-30 |
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| CN107086345B (en) * | 2017-04-07 | 2018-11-30 | 深圳市华讯方舟微电子科技有限公司 | Ultra wide band wilkinson power divider |
| CN107293835B (en) * | 2017-05-27 | 2019-03-22 | 深圳市华讯方舟微电子科技有限公司 | Single-unit Wilkinson power divider |
| CN107681242B (en) * | 2017-11-10 | 2019-01-04 | 深圳市华讯方舟微电子科技有限公司 | Wilkinson power divider |
| CN108183301A (en) * | 2017-12-12 | 2018-06-19 | 吴云飞 | A kind of miniaturization Wilkinson power divider with low-pass filtering |
| US10707827B2 (en) | 2018-01-08 | 2020-07-07 | Qualcomm Incorporated | Wide-band Wilkinson divider |
| CN109728393A (en) * | 2018-08-07 | 2019-05-07 | 中国航空工业集团公司雷华电子技术研究所 | A kind of racemosus section power splitter |
| CN109981055B (en) * | 2019-03-25 | 2023-12-05 | 杭州电子科技大学富阳电子信息研究院有限公司 | Shunt harmonic control circuit |
| RU2707987C1 (en) * | 2019-05-20 | 2019-12-03 | Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" | Multichannel power distributor |
| CN110137653B (en) * | 2019-05-31 | 2021-05-28 | 佳木斯大学 | Low-insertion-loss Wilkinson power divider |
| CN113540727B (en) * | 2021-06-30 | 2022-05-17 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Frequency selective microstrip shunt |
| CN114039179B (en) * | 2021-09-29 | 2022-05-27 | 电子科技大学长三角研究院(湖州) | Terahertz active quasi-circulator based on CMOS (complementary Metal oxide semiconductor) process |
| CN114899571A (en) * | 2022-05-18 | 2022-08-12 | 西北核技术研究所 | Novel high-power Wilkinson synthesizer |
| CN115425381B (en) * | 2022-08-15 | 2023-04-18 | 电子科技大学 | Wilkinson power divider with reconfigurable working mode |
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| WO2018184425A1 (en) | 2018-10-11 |
| CN107086345A (en) | 2017-08-22 |
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