CN209045733U - A kind of microstrip power divider - Google Patents
A kind of microstrip power divider Download PDFInfo
- Publication number
- CN209045733U CN209045733U CN201821705553.7U CN201821705553U CN209045733U CN 209045733 U CN209045733 U CN 209045733U CN 201821705553 U CN201821705553 U CN 201821705553U CN 209045733 U CN209045733 U CN 209045733U
- Authority
- CN
- China
- Prior art keywords
- isolation resistance
- microstrip
- way
- impedance matching
- power divider
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model provides a kind of microstrip power divider, including input terminal IN, output end OUT1, OUT2, OUT3, OUT4, isolation resistance R1, R2, R3, R4, R5, R6, R7, R8 and impedance matching node P1, P2, it is characterized by: the input terminal IN separates the both ends that two-way microstrip line is separately connected isolation resistance R1, the both ends of the isolation resistance R1 separate the both ends that two-way microstrip line is separately connected isolation resistance R2, the both ends of the isolation resistance R2 separate two-route wire, impedance matching node P1 is connected all the way, another way connects impedance matching node P2, the impedance matching node P1 is divided into two-way microstrip line and is sequentially connected isolation resistance R3, R4, the both ends of R5, the both ends the isolation resistance R5 be divided into two-way microstrip line be separately connected it is defeated Outlet OUT1 and OUT2, the impedance matching node P2 are divided into the both ends that two-way microstrip line is sequentially connected isolation resistance R6, R7, R8, and the both ends isolation resistance R8 are divided into two-route wire and are separately connected output end OUT3 and OUT4.
Description
Technical field
The utility model relates to power splitter technical field more particularly to a kind of microstrip power dividers.
Background technique
Power splitter be it is a kind of by input signal energy be divided into two-way or or the equal or unequal energy of multichannel device, can also
It is reverse to use, the synthesis of multiple signals energy is exported all the way, referred to as combiner.Power splitter is divided by structure: chamber power divider,
Line transformer, microstrip power divider.Wherein chamber power divider bears that power is big, and Insertion Loss is small, the disadvantage is that output end standing wave it is big and
Without isolation.Line transformer is compact-sized, balancing performance, the disadvantage is that high band transmission coefficient is small, Insertion Loss is big, is not suitable for L
The above ultrashort wave signals of wave band.And microstrip power divider focuses on the research application of L-band or more, but in actual design process,
Because the factors such as mismachining tolerance and material error cause larger with design of Simulation difference, and debugging difficulty is big.
It is that latter made two function of 0.9GHz~2.4GHz micro-strip of ADS design of Simulation divides PCB trace as shown in Figure 2, is also function
Parallel circuit figure.According to the bandwidth of frequency range, to reach 1.2 or less standing waves when 21dB or more isolation, the impedance of level Four λ/4 is needed to become
Parallel operation.From the end IN divide the starting point of two-way to bisector L1, L1 at the both ends isolation resistance R1 ' length be λ/4, λ be center frequency
The wavelength of 1.65GHz, the identical cabling of level Four and length, are calculated every according to the impedance of every section using microstrip line software for calculation altogether
Section etc. divides line width, to design two function of this micro-strip point.It can be seen from the figure that when leading to line impedance not because of actual error
When matching, it can not be modified, in addition two-way output OUT1, OUT2 are too close, and power splitter is put into isolated chambers, can not
The installation of radio frequency interface is carried out, so that the utilization of the power splitter is unable to reach ideal effect.
Such as Chinese patent " CN206180073U " discloses a kind of microstrip power divider circuit, a kind of multistage of high reliability
The power splitter of branched structure characterized by comprising 1 input port, N number of output port, 2N-2 microstrip line and N-1
Isolation ring, wherein N is natural number, and the input port is connect by multilevel structure with the output port, the multilevel structure
Every first nodes are power distribution ring, connect even higher level of node by 1 the first microstrip line, micro- by the second microstrip line and third
2 nodes with line connection next stage, an isolation ring be connected across second microstrip line and the third microstrip line it
Between.The technical solution is using the method for corresponding two output of an input, and pilot process can not monitor, when because of practical mistake
When difference causes line impedance to mismatch, it can not be modified.
Summary of the invention
For that can not be corrected when overcoming the problems, such as the bad installation of video interface existing in the prior art, impedance mismatch, this
Utility model provides a kind of microstrip power divider.
The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of microstrip power divider, including input terminal IN,
Output end OUT1, OUT2, OUT3, OUT4, isolation resistance R1, R2, R3, R4, R5, R6, R7, R8 and impedance matching node P1,
P2, it is characterised in that: the input terminal IN separates the both ends that two-way microstrip line is separately connected isolation resistance R1, the isolation resistance
The both ends of R1 separate the both ends that two-way microstrip line is separately connected isolation resistance R2, and the both ends of the isolation resistance R2 separate two-way
Line connects impedance matching node P1 all the way, and another way connects impedance matching node P2, and the impedance matching node P1 is divided into two-way
Microstrip line is sequentially connected the both ends of isolation resistance R3, R4, R5, and the both ends the isolation resistance R5 are divided into two-way micro-strip after extending cabling
Line is separately connected output end OUT1 and OUT2, and the impedance matching node P2 is divided into two-way microstrip line and is sequentially connected isolation resistance
The both ends of R6, R7, R8, the both ends the isolation resistance R8 extend cabling after be divided into two-route wire be separately connected output end OUT3 and
OUT4。
On this basis, the input terminal IN to microstrip line, isolation resistance R3, R4, R5 between isolation resistance R1, R2
Between microstrip line and isolation resistance R6, R7, R8 between micro-strip line length it is all the same.
On this basis, the input terminal IN to microstrip line, isolation resistance R3, R4, R5 between isolation resistance R1, R2
Between microstrip line and isolation resistance R6, R7, R8 between micro-strip line length be equal to the four of working frequency range center frequency wavelength
/ mono-.
On this basis, pcb board material used in the microstrip power divider be FR4 two panels, plate with a thickness of 1mm.
On this basis, described isolation resistance R1, R2, R3, R4, R5, R6, R7, R8 are 0805 type Chip-R.
On this basis, the initial impedance at described impedance matching node P1, P2 is greater than Theoretical Design impedance.
On this basis, the route at described impedance matching node P1, P2 is cleavable cabling.
Compared with prior art, the utility model has the beneficial effects that
The utility model provides a kind of microstrip power divider, proposes the isolation electricity for cancelling two power splitter of micro-strip most rear class
Resistance extends micro-strip function point output to suitable position, makes in the case where not influencing isolation, adapt to radio frequency interface installation.
The utility model provides a kind of microstrip power divider, places impedance matching using between two microstrip power dividers cascade
Node P1, P2 carry out routing of layout width by slightly above inferential impedance, compare instrument actual measured value then to cut the side of cabling
Method can change impedance convenient for debugging line width, carry out impedance matching.
The utility model provides a kind of microstrip power divider, is transported using the collocation of input stage filter with low insertion loss and output stage high isolation
With being reduced because filter with low insertion loss power splitter reduces signal lead length while so that multipath microstrip power splitter is reached isolation
The insertion loss of entire power splitter.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model；
Fig. 2 is a kind of existing two power-devided circuits figure.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be further described in detail.It should be appreciated that this place is retouched
The specific embodiment stated only to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, the utility model schematically illustrates a kind of microstrip power divider.
The utility model discloses a kind of microstrip power divider, as shown in Figure 1, a kind of microstrip power divider, a kind of micro-strip function point
Device, including input terminal IN, output end OUT1, OUT2, OUT3, OUT4, isolation resistance R1, R2, R3, R4, R5, R6, R7, R8 and resistance
Anti- matched node P1, P2, the input terminal IN separate the both ends that two-way microstrip line is separately connected isolation resistance R1, the isolation electricity
The both ends of resistance R1 separate the both ends that two-way microstrip line is separately connected isolation resistance R2, and the both ends of the isolation resistance R2 separate two-way
Line connects impedance matching node P1 all the way, and another way connects impedance matching node P2, and the impedance matching node P1 is divided into two-way
Microstrip line is sequentially connected the both ends of isolation resistance R3, R4, R5, and the both ends the isolation resistance R5 are divided into two-way microstrip line and are separately connected
Output end OUT1 and OUT2, the impedance matching node P2 are divided into two-way microstrip line is sequentially connected isolation resistance R6, R7, R8 two
End, the both ends the isolation resistance R8 are divided into two-route wire and are separately connected output end OUT3 and OUT4.
As preferred embodiments of the present invention, the input terminal IN between isolation resistance R1, R2 microstrip line,
Micro-strip line length between microstrip line between isolation resistance R3, R4, R5 and isolation resistance R6, R7, R8 is all the same.
As preferred embodiments of the present invention, the input terminal IN between isolation resistance R1, R2 microstrip line,
Micro-strip line length between microstrip line between isolation resistance R3, R4, R5 and isolation resistance R6, R7, R8 is equal to working frequency range
The a quarter of center frequency wavelength.
As preferred embodiments of the present invention, pcb board material used in the microstrip power divider is FR4 two panels,
Plate with a thickness of 1mm.
As preferred embodiments of the present invention, described isolation resistance R1, R2, R3, R4, R5, R6, R7, R8 are
0805 type Chip-R.
As preferred embodiments of the present invention, the initial impedance at described impedance matching node P1, P2 is greater than reason
By design impedance.
As preferred embodiments of the present invention, route at described impedance matching node P1, P2 be it is cleavable walk
Line.
The working principle of the utility model is:
Firstly, signal is inputted from input terminal IN, it is then divided into two-way, is isolated through isolation resistance R1 and R2 two, reaches one
Two-way is exported to impedance matching node P1 and P2 after fixed isolation, impedance matching node P1, P2 are by slightly above inferential impedance
Carry out routing of layout width, compares instrument actual measured value then to cut cabling, impedance is changed by debugging line width, carries out impedance
Matching is adjusted, then from impedance matching node P1, P2, is divided into two after isolation resistance R3, R4, R5 reach the requirement of isolation all the way
Road from output end OUT1, OUT2 export, another way be divided into after isolation resistance R6, R7, R8 reach the requirement of isolation two-way from
Output end OUT3, OUT4 output.
Compared with prior art, the utility model has the beneficial effects that
The utility model provides a kind of microstrip power divider, proposes the isolation electricity for cancelling two power splitter of micro-strip most rear class
Resistance extends micro-strip function point output to suitable position, makes in the case where not influencing isolation, adapt to radio frequency interface installation.
The utility model provides a kind of microstrip power divider, places impedance matching using between two microstrip power dividers cascade
Node P1, P2 carry out routing of layout width by slightly above inferential impedance, compare instrument actual measured value then to cut the side of cabling
Method can change impedance convenient for debugging line width, carry out impedance matching.
The utility model provides a kind of microstrip power divider, is transported using the collocation of input stage filter with low insertion loss and output stage high isolation
With being reduced because filter with low insertion loss power splitter reduces signal lead length while so that multipath microstrip power splitter is reached isolation
The insertion loss of entire power splitter.
The preferred embodiment of the utility model has shown and described in above description, as previously described, it should be understood that this is practical new
Type is not limited to forms disclosed herein, and should not be regarded as an exclusion of other examples, and can be used for various other groups
It closes, modification and environment, and by the technology of above-mentioned introduction or related fields or can know within that scope of the inventive concept describe herein
Knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then all answer
In the protection scope of the appended claims for the utility model.
Claims (7)
1. a kind of microstrip power divider, including input terminal IN, output end OUT1, OUT2, OUT3, OUT4, isolation resistance R1, R2, R3,
R4, R5, R6, R7, R8 and impedance matching node P1, P2, it is characterised in that: the input terminal IN separates two-way microstrip line and connects respectively
The both ends of isolation resistance R1 are connect, the both ends of the isolation resistance R1 separate two-way microstrip line is separately connected isolation resistance R2 two
End, the both ends of the isolation resistance R2 separate two-route wire, connect impedance matching node P1 all the way, and another way connects impedance matching section
Point P2, the impedance matching node P1 are divided into the both ends that two-way microstrip line is sequentially connected isolation resistance R3, R4, R5, the isolation
The both ends resistance R5 are divided into two-way microstrip line and are separately connected output end OUT1 and OUT2, and it is micro- that the impedance matching node P2 is divided into two-way
The both ends of isolation resistance R6, R7, R8 are sequentially connected with line, the both ends the isolation resistance R8 are divided into two-route wire and are separately connected output end
OUT3 and OUT4.
2. a kind of microstrip power divider according to claim 1, it is characterised in that: the input terminal IN to isolation resistance R1,
Microstrip line between R2, the microstrip line between isolation resistance R3, R4, R5 and the micro-strip line length between isolation resistance R6, R7, R8
It is all the same.
3. a kind of microstrip power divider according to claim 2, it is characterised in that: the input terminal IN to isolation resistance R1,
Microstrip line between R2, the microstrip line between isolation resistance R3, R4, R5 and the micro-strip line length between isolation resistance R6, R7, R8
It is equal to a quarter of working frequency range center frequency wavelength.
4. a kind of microstrip power divider according to claim 1, it is characterised in that: pcb board used in the microstrip power divider
Material be FR4 two panels, plate with a thickness of 1mm.
5. a kind of microstrip power divider according to claim 1, it is characterised in that: the isolation resistance R1, R2, R3, R4,
R5, R6, R7, R8 are 0805 type Chip-R.
6. a kind of microstrip power divider according to claim 1, it is characterised in that: at described impedance matching node P1, P2
Initial impedance is greater than Theoretical Design impedance.
7. a kind of microstrip power divider according to claim 1, it is characterised in that: at described impedance matching node P1, P2
Route is cleavable cabling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705553.7U CN209045733U (en) | 2018-10-19 | 2018-10-19 | A kind of microstrip power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705553.7U CN209045733U (en) | 2018-10-19 | 2018-10-19 | A kind of microstrip power divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209045733U true CN209045733U (en) | 2019-06-28 |
Family
ID=67036812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821705553.7U Expired - Fee Related CN209045733U (en) | 2018-10-19 | 2018-10-19 | A kind of microstrip power divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209045733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403882A (en) * | 2020-04-12 | 2020-07-10 | 南京理工大学 | Ultra-wideband one-to-four power divider |
| CN114335958A (en) * | 2021-11-25 | 2022-04-12 | 南京国睿防务系统有限公司 | Low-power-consumption transformation method of 1/4 power divider |
-
2018
- 2018-10-19 CN CN201821705553.7U patent/CN209045733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403882A (en) * | 2020-04-12 | 2020-07-10 | 南京理工大学 | Ultra-wideband one-to-four power divider |
| CN114335958A (en) * | 2021-11-25 | 2022-04-12 | 南京国睿防务系统有限公司 | Low-power-consumption transformation method of 1/4 power divider |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019085368A1 (en) | Wilkinson power divider | |
| CN209045733U (en) | A kind of microstrip power divider | |
| CN110752429A (en) | Ultra-wideband odd-equal power dividing circuit and design method | |
| US20200153075A1 (en) | Branch-line coupler | |
| CN106856254B (en) | broadband multi-path power divider loss optimization method based on hierarchical design | |
| CN112448113A (en) | Butterfly-shaped microstrip filtering power divider | |
| CN103296346A (en) | Micro-strip balanced filter | |
| CN106374172B (en) | Millimeter wave band multiplexer based on waveguide coupler | |
| US6320478B1 (en) | Power divider for harmonically rich waveforms | |
| CN108011168B (en) | Novel Wilkinson power divider capable of terminating complex impedance | |
| CN110783681A (en) | One-to-six microstrip power divider | |
| CN109638401A (en) | A kind of Wilkinson power divider of broadband not equal part | |
| CN112838840B (en) | Broadband equal-power distribution/synthesis circuit topology with broadband deep isolation | |
| CN207572511U (en) | Wilkinson power divider | |
| CN110768642B (en) | Broadband negative group delay microwave circuit with flat group delay characteristic | |
| CN202818241U (en) | Ultra-wideband analog phase shifter | |
| CN206116581U (en) | Ware is divided to merit and subassembly thereof | |
| CN107959097B (en) | Road-spacing release-type broadband high-power radial power divider | |
| CN107799859B (en) | Non-cascaded arbitrary odd-path microstrip power divider | |
| KR100362877B1 (en) | Power divider /combiner using 3 way chebyshev matching transformer | |
| CN105186089B (en) | A kind of big frequency ratio microwave dual-frequency power divider of miniaturization | |
| CN110995167B (en) | Internal matching power tube applying optimized synthesis network | |
| CN114497952A (en) | Power divider with higher harmonic suppression characteristic and design method thereof | |
| CN113794447A (en) | Active frequency multiplier, frequency multiplication amplifying circuit and MMIC chip | |
| CN111384908A (en) | Power divider circuit, power divider and design method of power divider circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190628 Termination date: 20201019 |