CN206401485U - A kind of power divider - Google Patents
A kind of power divider Download PDFInfo
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- CN206401485U CN206401485U CN201621394374.7U CN201621394374U CN206401485U CN 206401485 U CN206401485 U CN 206401485U CN 201621394374 U CN201621394374 U CN 201621394374U CN 206401485 U CN206401485 U CN 206401485U
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Abstract
The utility model provides a kind of power divider for meeting existing ultra-wideband communication system, including micro-strip impedance line, and micro-strip impedance line is two groups, shares an input port, it is characterized in that：The micro-strip impedance line includes first segment micro-strip impedance line and second section micro-strip impedance line, and one microstrip line unit of access in parallel is connected on the first isolation resistance, first segment micro-strip impedance line between first segment micro-strip impedance line and second section micro-strip impedance line.The utility model solves many defects such as existing power divider loss is big, actual size is big, bandwidth of operation is narrow.
Description
Technical field
The utility model belongs to ultra wide band mobile communication technology field, more particularly to a kind of power divider.
Background technology
Current super-broadband tech is a kind of new efficient communication mode, can alleviate crowded frequency resource problem, this skill
Art is gradually with fortune in the wireless communication technologys such as WLAN, GPS of a new generation.Power divider is conventional nothing in communication system
Source module, traditional equal power is mainly made up of multiple quarter-wave impedance lines, in the section of every section of impedance line
Point have resistive terminal, joint number used is more, and isolation resistance is also more, accordingly with regard to can obtain broader bandwidth and more preferably
Isolation.But, resistance, which increases, can increase parasitic drain, and joint number increase can increase component size.Therefore, existing power point
Orchestration the problems such as bandwidth of operation is narrow, size big, loss is high due to influenceing the performance of whole system.
Utility model content
The utility model provides a kind of power divider for meeting existing ultra-wideband communication system, solves existing power point
Many defects such as big, actual size is big, bandwidth of operation is narrow are lost in orchestration.
Technical solution of the present utility model is：The utility model is a kind of power divider, including micro-strip impedance line,
Micro-strip impedance line is two groups, shares an input port, it is characterized in that：The micro-strip impedance line includes first segment micro-strip
Impedance line and second section micro-strip impedance line, are connected to the first isolation electricity between first segment micro-strip impedance line and second section micro-strip impedance line
One microstrip line unit of access in parallel on resistance, first segment micro-strip impedance line.
Above-mentioned microstrip line unit is sector.
Above-mentioned micro-strip impedance line also includes by carefully to wide gradual change microstrip line, the output end with second section micro-strip impedance line
Mouth connection, is connected to the second isolation resistance between second section micro-strip impedance line and gradual change microstrip line.
The width of above-mentioned first segment micro-strip impedance line and second section micro-strip impedance line is followed successively by：1.1mm、1.7mm.
The narrow hem width degree of above-mentioned gradual change microstrip line is 1.7mm, and broadside width is 2.6mm.
The width of above-mentioned fan-shaped offset of microstrip line unit and first segment micro-strip impedance line interface section is 1mm, and radius is 1.6mm,
Radian is 70.
Above-mentioned two groups of micro-strip impedance lines are integrated on medium substrate.
The dielectric constant of above-mentioned medium substrate is 2.65, and thickness of slab is 1mm, 1 ounce of copper thickness.
The utility model has advantages below：
1st, the utility model accesses microstrip line unit in first segment micro-strip impedance line parallel, greatly reduces joint number, and open up
Wide bandwidth.The reduction of joint number reduces the quantity of isolation resistance, reduces parasitic drain that resistance excessively introduces and makes whole
Module size is greatly reduced.
2nd, the shape of the microstrip line unit in parallel in the utility model is designed to sector, than traditional microstrip line brachyplast section more
It is short, further reduce the physical dimension of whole module；Sector structure is passed with the contact size of first segment micro-strip impedance line ratio
The rectangle stub of system is narrow, it therefore reduces the loss caused by the discontinuity of the wider generation of junction size, and then improve
The insertion loss of device.
3rd, equivalent to one resistance of the gradual change microstrip line between second section micro-strip impedance line and output port of the present utility model
Resistance parallel operation, the impedance transformation that total is formed is 50 ohm, realizes good of other devices in element and system
Match somebody with somebody.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram of the utility model fan-shaped offset of microstrip line unit；
Fig. 3 is simulation result of the utility model in simulation software after addition fan-shaped offset of microstrip line unit；
Fig. 4 is value of the utility model in the return loss S11 of arrow net test.
Description of reference numerals is as follows：
1- input ports；2- first segment micro-strip impedance lines；The isolation resistances of 3- first；4- second section micro-strip impedance lines；5- is gradually
Become microstrip line；The output ports of 6- first；7- microstrip line units；The isolation resistances of 8- second；The output ports of 9- second.
Embodiment
It is that one two section halves power divider referring to Fig. 1, specific embodiment of the utility model structure.Including two groups
Micro-strip impedance line, it shares an input port 1, and micro-strip impedance line includes first segment micro-strip impedance line 2, second section micro-strip impedance
Line 4 and gradual change microstrip line 5, are connected to the first isolation resistance 3 between first segment micro-strip impedance line 2 and second section micro-strip impedance line 4, the
One microstrip line unit 7 of access in parallel on one section impedance line 2, microstrip line unit 7 is sector.Gradual change microstrip line 5 and second section are micro-
Output port connection with impedance line 4, is connected to the second isolation resistance 8 between second section micro-strip impedance line 4 and gradual change microstrip line 5.
The width of first segment micro-strip impedance line 2 and second section micro-strip impedance line 4 is followed successively by：1.1mm、1.7mm.Gradual change microstrip line 5 it is narrow
Hem width degree is 1.7mm, and broadside width is 2.6mm.Fan-shaped offset of microstrip line unit 7 and the width of the interface section of first segment micro-strip impedance line 2
Spend for 1mm, radius is 1.6mm, and radian is 70.Two groups of micro-strip impedance lines are integrated on medium substrate.The dielectric of medium substrate is normal
Number is 2.65, and thickness of slab is 1mm, 1 ounce of copper thickness.
The signal of decile is needed to be inputted from input port 1, the work(exported through the first output port 6 and the first output port 9
Rate is that decile halves signal.The characteristic impedance Z 0 of three ports is 50 ohm.The characteristic impedance of first segment micro-strip impedance line 2
For Z02, Z03, the characteristic impedance of second section micro-strip impedance line 4 is Z022, Z033.According to knowwhy can estimate Z02, Z03,
Z022 and Z033 value is respectively 70.7 ohm, 70.7 ohm, 84 ohm, 84 ohm.The resistance difference of two isolation resistances 3,8
For 100 ohm, 200 ohm.The width of microstrip line is relevant with its length and impedance value, the calculating small tool in ADS softwares
The width that port micro-strip impedance line can be calculated is 2.739mm.The width and length of first segment micro-strip impedance line 2 be respectively
1.1mm, 5.2mm, width and length difference 1.7mm, 5.1mm of second section micro-strip impedance line 4.
Referring to Fig. 2, one fan-shaped offset of microstrip line unit 7 of access in parallel on first segment micro-strip impedance line 2 of the present utility model, warp
It is 70 degree to cross the fan angle that estimation equation calculations incorporated largely emulates fan-shaped, is with the contact position width of first segment micro-strip impedance line 2
1mm, radius is 1.6mm.The utilization broadening of the sector structure utilization bandwidth of whole module, the overall chi for reducing device
Insertion loss that is very little, improving device.In addition, adding one section again between first segment micro-strip impedance line 2 and the first output port 6 gradually
Change microstrip line 5, the matching for improving circuit, the width of the narrow end of gradual change microstrip line 5 is 1.7mm, and wide end width is 2.6mm, its
Length is 6.7mm.Show that the value for changing Wi and Angle is not obvious for the influence of circuit by software emulation, this explanation is being answered
When being designed with sector element, it is only necessary to which considering the radius of sector element can just be improved to circuit.
Referring to Fig. 3, by result it can be seen that the utility model two output ports 6,9 echoes in 1GHz-17.5GHz are damaged
Consumption is respectively less than -10dB, shows that its is functional.
Referring to Fig. 4, by measured result it can be seen that the utility model return loss S11 in 2GHz-18GHz be respectively less than-
20dB。
Claims (8)
1. a kind of power divider, including micro-strip impedance line, the micro-strip impedance line are two groups, an input port is shared, its
It is characterised by：The micro-strip impedance line includes first segment micro-strip impedance line and second section micro-strip impedance line, the first segment micro-strip
Access one in parallel is connected on the first isolation resistance, the first segment micro-strip impedance line between impedance line and second section micro-strip impedance line
Individual microstrip line unit.
2. power divider according to claim 1, it is characterised in that：The microstrip line unit is sector.
3. power divider according to claim 2, it is characterised in that：The micro-strip impedance line also includes by thin to width
Gradual change microstrip line, be connected with the output port of second section micro-strip impedance line, the second section micro-strip impedance line and gradual change micro-strip
The second isolation resistance is connected between line.
4. power divider according to claim 3, it is characterised in that：The first segment micro-strip impedance line and second section are micro-
Width with impedance line is followed successively by：1.1mm、1.7mm.
5. power divider according to claim 4, it is characterised in that：The narrow hem width degree of the gradual change microstrip line is
1.7mm, broadside width is 2.6mm.
6. power divider according to claim 5, it is characterised in that：The fan-shaped offset of microstrip line unit and first segment micro-strip
The width of impedance line interface section is 1mm, and radius is 1.6mm, and radian is 70.
7. according to any described power divider of claim 1 to 6, it is characterised in that：Two groups of micro-strip impedance lines are integrated
On medium substrate.
8. power divider according to claim 7, it is characterised in that：The dielectric constant of the medium substrate is 2.65,
Thickness of slab is 1mm, 1 ounce of copper thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394374.7U CN206401485U (en) | 2016-12-19 | 2016-12-19 | A kind of power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394374.7U CN206401485U (en) | 2016-12-19 | 2016-12-19 | A kind of power divider |
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| Publication Number | Publication Date |
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| CN206401485U true CN206401485U (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621394374.7U Active CN206401485U (en) | 2016-12-19 | 2016-12-19 | A kind of power divider |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602201A (en) * | 2016-12-19 | 2017-04-26 | 西安易朴通讯技术有限公司 | Power divider |
| CN108123197A (en) * | 2017-12-18 | 2018-06-05 | 刘伟 | A kind of transition line power splitter |
| CN108880501A (en) * | 2018-06-22 | 2018-11-23 | 杭州电子科技大学 | A kind of broadband out-phase power combiner |
| CN110137653A (en) * | 2019-05-31 | 2019-08-16 | 佳木斯大学 | A kind of filter with low insertion loss Wilkinson power divider |
-
2016
- 2016-12-19 CN CN201621394374.7U patent/CN206401485U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602201A (en) * | 2016-12-19 | 2017-04-26 | 西安易朴通讯技术有限公司 | Power divider |
| CN106602201B (en) * | 2016-12-19 | 2022-02-25 | 西安易朴通讯技术有限公司 | Power distributor |
| CN108123197A (en) * | 2017-12-18 | 2018-06-05 | 刘伟 | A kind of transition line power splitter |
| CN108880501A (en) * | 2018-06-22 | 2018-11-23 | 杭州电子科技大学 | A kind of broadband out-phase power combiner |
| CN110137653A (en) * | 2019-05-31 | 2019-08-16 | 佳木斯大学 | A kind of filter with low insertion loss Wilkinson power divider |
| CN110137653B (en) * | 2019-05-31 | 2021-05-28 | 佳木斯大学 | Low-insertion-loss Wilkinson power divider |
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