CN106654496A - Improved single-section Wilkinson power divider - Google Patents
Improved single-section Wilkinson power divider Download PDFInfo
- Publication number
- CN106654496A CN106654496A CN201710008084.7A CN201710008084A CN106654496A CN 106654496 A CN106654496 A CN 106654496A CN 201710008084 A CN201710008084 A CN 201710008084A CN 106654496 A CN106654496 A CN 106654496A
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- CN
- China
- Prior art keywords
- line
- power divider
- wilkinson power
- impedance conversion
- input
- 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.)
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Classifications
-
- 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 invention discloses an improved single-section Wilkinson power divider. The improved single-section Wilkinson power divider comprises an input microstrip line (1), an input impedance conversion line (2), two 1/4-wavelength impedance conversion lines (3) and two output microstrip lines (4), wherein the input microstrip line (1) is connected with the input impedance conversion line (2) and used for transmitting a radio-frequency signal; the input impedance conversion line (2) is connected with the two 1/4-wavelength impedance conversion lines (3) and used for cutting the radio-frequency signal and transmitting the cut radio-frequency signals to the respective 1/4-wavelength impedance conversion lines (3) respectively; and each 1/4-wavelength impedance conversion line (3) is connected with the corresponding output microstrip line (4), and used for outputting the cut radio-frequency signals. The improved single-section Wilkinson power divider disclosed by the invention cuts the radio-frequency signal by the 1/4-wavelength impedance conversion lines; and compared with the conventional single-section Wilkinson power divider, the bandwidth is doubled.
Description
This case require that on November 25th, 2016 submit to Chinese invention patent, Application No. 201611055643.1 it is excellent
First weigh.
Technical field
The present invention relates to circuited transmission field, more particularly to a kind of improved single-unit Wilkinson power divider.
Background technology
Power splitter is requisite part in many microwave radio circuits, and it can realize that power distribution and power are closed
Into.Wilkinson power divider has excellent isolation and good port match, and easily realizes, therefore Wilkinson work(
Device is divided widely to be applied in various microwave radio circuits.
The Wilkinson power divider of existing single-unit, due to only once quarter-wave impedance conversion, its bandwidth is all
It is narrow, then need to use more piece Wilkinson power divider if necessary to wider bandwidth, and more piece power splitter can make equipment
Size increase be twice, it has not been convenient to use.
The content of the invention
The invention reside in overcoming the above-mentioned deficiency of prior art, there is provided one kind does not increase single-unit Wilkinson power divider chi
Improved single-unit Wilkinson power divider that is very little, bandwidth being doubled again.
In order to realize foregoing invention purpose, the technical solution used in the present invention is：
A kind of improved single-unit Wilkinson power divider, including input microstrip line, input impedance conversion line, two quarter-waves
Long impedance transformation line, two output microstrip lines；
The input microstrip line connection input impedance conversion line, for transmitting radio frequency signal；The input impedance conversion device connection
Two quarter-waves impedance transformation line, for splitting to the radiofrequency signal, and the radio frequency after segmentation is believed
Number it is separately sent to per quarter-wave impedance transformation line described in bar；Connect per quarter-wave impedance transformation line described in bar
Corresponding output microstrip line, for the radiofrequency signal after segmentation to be exported.
Further, also including isolation resistance, the isolation resistance is arranged between the two output microstrip line, is used for
Signal isolation is carried out to the radiofrequency signal after segmentation.
Further, the input microstrip line is 50 ohm microstrips with the output microstrip line.
Compared with prior art, beneficial effects of the present invention
The improved single-unit Wilkinson power divider of the present invention, is carried out using quarter-wave impedance transformation line to radiofrequency signal
Segmentation, compares traditional single-unit Wilkinson power divider bandwidth and doubles.
Description of the drawings
Fig. 1 show the improved single-unit Wilkinson power divider schematic diagram of the present invention.
Fig. 2 show traditional single-unit Wilkinson power divider schematic diagram.
Fig. 3 show the single-unit Wilkinson power divider schematic diagram of the present invention.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.But this should not be interpreted as the present invention
The scope of above-mentioned theme is only limitted to below example, and all technologies realized based on present invention belong to the model of the present invention
Enclose.
Embodiment 1：
Fig. 1 show the improved single-unit Wilkinson power divider schematic diagram of the present invention, including input microstrip line 1, input impedance
The quarter-wave impedance transformation line 3, two of transformation line 2, two exports microstrip line 4；
The input microstrip line 1 connection input impedance conversion line 2, for transmitting radio frequency signal；The input impedance conversion device 2 connects
Two quarter-wave impedances transformation line 3 is connect, for splitting to the radiofrequency signal, and by the radio frequency after segmentation
Signal is separately sent to per quarter-wave impedance transformation line 3 described in bar；Per quarter-wave impedance transformation line 3 described in bar
Connect corresponding output microstrip line 4, for the radiofrequency signal after segmentation to be exported.
It is, in principle, that the bandwidth of a transmission line is the maximum Q circles passed through on Smith circles by the transmission line impedance determining
Fixed, the less bandwidth of Q circles of process is wider.Traditional Wilkinson power divider is as shown in Fig. 2 the impedance on Smith circles becomes
Path is changed, wherein A is single order power splitter transform path, B is second order power splitter transform path, it only applies Smith circles side
Space, and opposite side is slatterned, because Q circles are symmetrical, transform path is also symmetrical, it is clear that move transform path
Justify center to Q, then the Q circles that impedance transform path is passed through are minimum, are the maximum designs of bandwidth, i.e., shown in Fig. 3, wherein C is this
Bright power splitter transform path.More traditional Wilkinson power divider is compared, the Q circles that impedance transform path of the present invention is passed through are less,
Bandwidth can accomplish wider.
In a detailed embodiment, also including isolation resistance 5, the isolation resistance 5 is arranged on two output
Between microstrip line 4, for carrying out signal isolation to the radiofrequency signal after segmentation.
Reduced size is needed during enforcement and increases bandwidth, while also to ensure the isolation for exporting two passages.The present invention
Power splitter in the bandwidth range that relative bandwidth is 70%, each port voltage standing-wave ratio（VSWR）Respectively less than 1.2, isolation is equal
More than 15dB.And size is only the half of traditional Wilkinson power divider of identical material same performance.Using quarter-wave
Long impedance transformation line is split to radiofrequency signal so as to which bandwidth doubles.
In a detailed embodiment, the input microstrip line 1 is 50 ohm microstrips with the output microstrip line 4
Line.
The specific embodiment of the present invention has been described in detail above in conjunction with accompanying drawing, but the present invention is not restricted to
Embodiment is stated, in the case of the spirit and scope without departing from claims hereof, those skilled in the art can make
Go out various modifications or remodeling.
Claims (3)
1. a kind of improved single-unit Wilkinson power divider, it is characterised in that including input microstrip line（1）, input impedance conversion
Line（2）, two quarter-wave impedance transformation lines（3）, two output microstrip lines（4）；
The input microstrip line（1）Connection input impedance conversion line（2）, for transmitting radio frequency signal；The input impedance conversion
Device（2）Connect two quarter-waves impedance transformation line（3）, for splitting to the radiofrequency signal, and will divide
Radiofrequency signal after cutting is separately sent to per quarter-wave impedance transformation line described in bar（3）；Per quarter-wave described in bar
Long impedance transformation line（3）Connect corresponding output microstrip line（4）, for the radiofrequency signal after segmentation to be exported.
2. improved single-unit Wilkinson power divider according to claim 1, it is characterised in that also including isolation resistance
（5）, the isolation resistance（5）It is arranged on the two output microstrip line（4）Between, for carrying out to the radiofrequency signal after segmentation
Signal isolation.
3. improved single-unit Wilkinson power divider according to claim 1, it is characterised in that the input microstrip line
（1）With the output microstrip line（4）It is 50 ohm microstrips.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055643 | 2016-11-25 | ||
| CN2016110556431 | 2016-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654496A true CN106654496A (en) | 2017-05-10 |
Family
ID=58843730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710008084.7A Pending CN106654496A (en) | 2016-11-25 | 2017-01-05 | Improved single-section Wilkinson power divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106654496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114899571A (en) * | 2022-05-18 | 2022-08-12 | 西北核技术研究所 | Novel high-power Wilkinson synthesizer |
| CN114899571B (en) * | 2022-05-18 | 2024-05-14 | 西北核技术研究所 | Novel high-power Wilkinson synthesizer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2628584A1 (en) * | 1988-03-11 | 1989-09-15 | Portenseigne Radiotechnique | POWER DISTRIBUTION FOR SIGNAL H.F. |
| EP0518310A1 (en) * | 1991-06-14 | 1992-12-16 | Rohde & Schwarz GmbH & Co. KG | High-frequency power divider/combiner circuit |
| CN1780046A (en) * | 2004-11-19 | 2006-05-31 | 华为技术有限公司 | Improved welkinson equipower work distributor |
| CN103050756A (en) * | 2013-01-17 | 2013-04-17 | 北京邮电大学 | Wilkinson power distributor terminated with arbitrary complex impedors |
| CN204179196U (en) * | 2014-10-15 | 2015-02-25 | 南京熊猫电子股份有限公司 | A kind of ultra wide band Wilkinson power divider |
-
2017
- 2017-01-05 CN CN201710008084.7A patent/CN106654496A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2628584A1 (en) * | 1988-03-11 | 1989-09-15 | Portenseigne Radiotechnique | POWER DISTRIBUTION FOR SIGNAL H.F. |
| EP0518310A1 (en) * | 1991-06-14 | 1992-12-16 | Rohde & Schwarz GmbH & Co. KG | High-frequency power divider/combiner circuit |
| CN1780046A (en) * | 2004-11-19 | 2006-05-31 | 华为技术有限公司 | Improved welkinson equipower work distributor |
| CN103050756A (en) * | 2013-01-17 | 2013-04-17 | 北京邮电大学 | Wilkinson power distributor terminated with arbitrary complex impedors |
| CN204179196U (en) * | 2014-10-15 | 2015-02-25 | 南京熊猫电子股份有限公司 | A kind of ultra wide band Wilkinson power divider |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114899571A (en) * | 2022-05-18 | 2022-08-12 | 西北核技术研究所 | Novel high-power Wilkinson synthesizer |
| CN114899571B (en) * | 2022-05-18 | 2024-05-14 | 西北核技术研究所 | Novel high-power Wilkinson synthesizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |