CN109638401A - A kind of Wilkinson power divider of broadband not equal part - Google Patents
A kind of Wilkinson power divider of broadband not equal part Download PDFInfo
- Publication number
- CN109638401A CN109638401A CN201811591261.XA CN201811591261A CN109638401A CN 109638401 A CN109638401 A CN 109638401A CN 201811591261 A CN201811591261 A CN 201811591261A CN 109638401 A CN109638401 A CN 109638401A
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- Prior art keywords
- power divider
- broadband
- transmission line
- wilkinson power
- equal part
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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
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- Microwave Amplifiers (AREA)
Abstract
The present invention proposes a kind of circuit structure of the broadband not Wilkinson power divider of equal part, realizes input stage Broadband Matching by applying more piece impedance converter in input terminal.In output end, the structure connected by two section matched transmission lines realizes wide isolation strip.Have many advantages, such as that structure is simple, it is easy to make.In Figure of description 3, the circuit structure of more piece impedance converter is proposed.In Figure of description 4, the more piece impedance transformer realized with microstrip line is illustrated.In Figure of description 5, the present embodiment is illustrated, a kind of microstrip line construction of the broadband not Wilkinson power divider of equal part.
Description
Technical field
The present invention relates to power divider field, the Wilkinson power divider of especially a kind of broadband not equal part.
Background technique
Power divider is a kind of multiport microwave device, is not divided into the power equal part of signal all the way or multichannel letter
Number, in the equipment such as application and wireless communication, radar of including board.Wilkinson power divider is a kind of relatively common broadband power
Distributor can facilitate realization using non-band structure on planar circuit, the occasion not high suitable for bandwidth requirement.
In microwave system, insertion loss that unexpectedly may be small can be all required as far as possible, to reduce the energy loss of system, and
It is required that the amplitude and phase of each branch are consistent, to guarantee the efficient distribution and superposition of signal.Currently, with communication equipment
Development, the requirement for frequency band is also more and more wider, so the broadband character of power divider also becomes more and more important.
Summary of the invention
Present invention mainly solves the problem of be to provide the power divider of broadband not equal part a kind of, wider input can be provided
Coupling bandwidth.
To solve the above problems, one technical scheme adopted by the invention is that: a kind of power point of broadband not equal part is provided
Orchestration, including Wilkinson power divider, the Wilkinson power divider are connected by microstrip line, the Wilkinson
Power divider includes isolation resistance, and the isolation resistance both ends are connected to the microstrip line, the microstrip line and isolation
Resistance is integrated on 4 plate of FR, and the microstrip line includes sequentially connected input transmission line, more piece matched transform device, matching biography
Defeated line, output transmission line, the input transmission line connect more piece matched transform device, and the more piece matched transform device matching connection passes
Defeated line, the matched transmission line connect output transmission line, and the matched transmission line connects isolation resistance.
It is in contrast to the prior art, the beneficial effects of the present invention are: by selection 4 plate of FR, and pass through application
The Broadband Matching property of ladder transmission line reaches wider matching frequency band, has many advantages, such as that structure is simple, easy to make.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of wideband power distributor of the embodiment of the present invention.
Fig. 2 is that the more piece matched transform device structure of broadband of the embodiment of the present invention not Wilkinson power divider of equal part is shown
It is intended to.
Fig. 3 is the more piece matched transform device microstrip line of broadband of the embodiment of the present invention not Wilkinson power divider of equal part
Structural schematic diagram.
Fig. 4 is the microstrip line construction schematic diagram of broadband of the embodiment of the present invention not Wilkinson power divider of equal part.
Fig. 5 is the simulation performance schematic diagram of broadband of the embodiment of the present invention not Wilkinson power divider of equal part.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, carries out to technical solution in the embodiment of the present invention clear, complete
Ground description.In the present specification, term " connection " indicates to be electrically connected between two elements, even if other elements are between,
But as long as forming electronics movable passageway between element, then it can be considered connection.
It is the structural schematic diagram of wideband power distributor of the embodiment of the present invention referring to Fig. 1.At this point, power divider 100 can
Including an input transmission line 101, a more piece matched transform device 102, four matched transmission lines 103,104,105,106, two
A output transmission line 107,108, an isolation resistance 109.The present embodiment is work in 1GHz, is improved in 0.5GHz to 1.5GHz
Broadband character and the exemplary circuit designed.
At this point, input transmission line 101 and output transmission line 107,108 characteristic impedances can 50 Ω of value.Output is transferred to pass
The output power of defeated line 107 is twice for being transferred to output transmission line 108.Input transmission line 101 is connected to more piece matched transform
Device 102.Ladder transmission line is connected to matched transmission line 103 and matched transmission line 105.103 characteristic impedance of matched transmission line is 125
Ω, electrical length 90°.105 characteristic impedance of matched transmission line is 31 Ω, electrical length 90°.Matched transmission line 103 is connected to match
Transmission line 104.104 characteristic impedance of matched transmission line is 79 Ω, electrical length 90°.Matched transmission line 105 is connected to matching and passes
Defeated line 106, matched transmission line characteristic impedance are 39 Ω, electrical length 90°.Between matched transmission line 103 and matched transmission line 104
It is connected to isolation resistance 109,109 resistance value of isolation resistance is 125 Ω.Matched transmission line 104 and matched transmission line 105 and matching
Isolation resistance 109 is connected between transmission line 106.Matched transmission line 104 is connected to output transmission line 107.Matched transmission line 106
It is connected to matched transmission line 108.
It referring to fig. 2, is the more piece matched transform device of broadband of the embodiment of the present invention not Wilkinson power divider of equal part
Structural schematic diagram.More piece matched transform device is 90 by more piece electrical length°, the close transmission line of characteristic impedance is connected in sequence,
Joint number more multipotency obtains wider bandwidth, can increase joint number according to practical application.
It is the more piece matched transform device of broadband of the embodiment of the present invention not Wilkinson power divider of equal part referring to Fig. 3
Microstrip line construction schematic diagram.In appearance, two adjacent section transmission line broadbands of more piece matched transform device are close, and width is passed step by step
Increase.It is connected in embodiment using two-stage matched transmission line.Matched transmission line 301 is connected to matched transmission line 302.Matching transmission
The characteristic impedance of line 301 is 39 Ω, electrical length 90°.The characteristic impedance of matched transmission line 302 is 29 Ω, electrical length 90°。
Referring to fig. 4, be broadband of the embodiment of the present invention not the Wilkinson power divider of equal part microstrip line construction signal
Figure.401 be input transmission line, and 402 be more piece impedance transformer, and 403,404 be matched transmission line, and 406 be output transmission line.
It is the simulation performance schematic diagram of broadband of the embodiment of the present invention not Wilkinson power divider of equal part referring to Fig. 5.
As shown in figure 5, close-the 2dB of the insertion loss 501 in 0.5Hz to 1.5GHz of broadband unequal power distributor, insertion loss
502 close to -5dB, shows that two output transmission line power ratios are 2, realizes that equal part broadband power does not distribute.Simultaneously 0.5Hz extremely
The reflection coefficient 503 of 1.5GHz is lower than -15dB, realizes Broadband Matching.The isolation 504 of 0.5Hz to 1.5GHz lower than-
15dB realizes wide isolation.
Claims (5)
1. a kind of Wilkinson power divider of broadband not equal part, including Wilkinson power divider, the Wilkinson
Power divider is connected by microstrip line, and the Wilkinson power divider includes isolation resistance, the isolation resistance both ends
It is connected to the microstrip line, the microstrip line includes sequentially connected input transmission line, more piece impedance transformer, matching biography
Defeated line, output transmission line, the matched transmission line connect isolation resistance.
2. the Wilkinson power divider of a kind of broadband according to claim 1 not equal part, it is characterized in that: applying more
Save impedance transformer.
3. more piece impedance transformer according to claim 1, it is characterized in that: matched transmission line similar in more piece characteristic impedance
Cascade, characteristic impedance increasing or decreasing step by step, the in appearance similar width of more piece transmission line and step by step increasing or decreasing.
4. the Wilkinson power divider of a kind of broadband according to claim 1 not equal part, it is characterized in that: realizing power
Not equal part transmission.
5. the Wilkinson power divider of a kind of broadband according to claim 1 not equal part, it is characterized in that: realizing broadband
Work, and there is wide isolation strip simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591261.XA CN109638401A (en) | 2018-12-20 | 2018-12-20 | A kind of Wilkinson power divider of broadband not equal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591261.XA CN109638401A (en) | 2018-12-20 | 2018-12-20 | A kind of Wilkinson power divider of broadband not equal part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109638401A true CN109638401A (en) | 2019-04-16 |
Family
ID=66077305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811591261.XA Pending CN109638401A (en) | 2018-12-20 | 2018-12-20 | A kind of Wilkinson power divider of broadband not equal part |
Country Status (1)
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| CN (1) | CN109638401A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113300071A (en) * | 2021-06-07 | 2021-08-24 | 深圳市鼎阳科技股份有限公司 | Power divider, directional coupler and network analyzer |
| CN116419464A (en) * | 2023-06-09 | 2023-07-11 | 安徽农业大学 | Plasma torch device |
| EP4165720A4 (en) * | 2020-09-01 | 2024-03-06 | Ericsson Telefon Ab L M | Radio frequency power divider and circuit including the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030069140A (en) * | 2003-07-22 | 2003-08-25 | 임종식 | Unequal Wilkinson Power Dividers using Simple Rectangular Defected Ground Structure |
| CN102544675A (en) * | 2012-01-13 | 2012-07-04 | 重庆邮电大学 | Double-frequency unequal power divider |
| CN103384022A (en) * | 2013-06-17 | 2013-11-06 | 西安电子工程研究所 | Implement method for plane micro-strip linear high-distribution ratio unequal power divider |
| CN205122743U (en) * | 2015-08-14 | 2016-03-30 | 四川九洲电器集团有限责任公司 | Power distribution unit |
-
2018
- 2018-12-20 CN CN201811591261.XA patent/CN109638401A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030069140A (en) * | 2003-07-22 | 2003-08-25 | 임종식 | Unequal Wilkinson Power Dividers using Simple Rectangular Defected Ground Structure |
| CN102544675A (en) * | 2012-01-13 | 2012-07-04 | 重庆邮电大学 | Double-frequency unequal power divider |
| CN103384022A (en) * | 2013-06-17 | 2013-11-06 | 西安电子工程研究所 | Implement method for plane micro-strip linear high-distribution ratio unequal power divider |
| CN205122743U (en) * | 2015-08-14 | 2016-03-30 | 四川九洲电器集团有限责任公司 | Power distribution unit |
Non-Patent Citations (1)
| Title |
|---|
| BRONISLAW STEC ET-AL: "《Signal distribution circuit for K-band》", 《2016 21ST INTERNATIONAL CONFERENCE ON MICROWAVE，RADAR AND WIRELESS COMMUNICATIONS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4165720A4 (en) * | 2020-09-01 | 2024-03-06 | Ericsson Telefon Ab L M | Radio frequency power divider and circuit including the same |
| CN113300071A (en) * | 2021-06-07 | 2021-08-24 | 深圳市鼎阳科技股份有限公司 | Power divider, directional coupler and network analyzer |
| CN113300071B (en) * | 2021-06-07 | 2022-04-12 | 深圳市鼎阳科技股份有限公司 | Directional coupler and network analyzer |
| CN116419464A (en) * | 2023-06-09 | 2023-07-11 | 安徽农业大学 | Plasma torch device |
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Application publication date: 20190416 |