CN110783681A - One-to-six microstrip power divider - Google Patents
One-to-six microstrip power divider Download PDFInfo
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- CN110783681A CN110783681A CN201911099682.5A CN201911099682A CN110783681A CN 110783681 A CN110783681 A CN 110783681A CN 201911099682 A CN201911099682 A CN 201911099682A CN 110783681 A CN110783681 A CN 110783681A
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- power divider
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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 invention discloses a one-to-six microstrip power divider, which comprises a one-to-two unequal power divider and four one-to-two power dividers, wherein the four one-to-two unequal power dividers are connected with the power divider; the power distribution ratio of the one-to-two unequal power divider is 1: 2, adopting a single-stage form; one-to-two power divider with power distribution ratio of 1: 1, adopting a two-stage cascade form; the output end of the one-to-two unequal power divider is connected with two one-to-two power dividers in parallel, and the output end of the one-to-two unequal power divider with power distribution occupying two parts is connected with two one-to-two power dividers in parallel. The invention can be applied to the bandwidth of 500MHz of L \ S \ C wave band, has small insertion loss, small transmission loss, simple structure and convenient debugging, and can meet the application of a plurality of application scenes such as antenna beam forming, wireless multi-path communication and the like.
Description
Technical Field
The invention belongs to the technical field of radio frequency wireless communication, and relates to a one-to-six microstrip power divider.
Background
A power divider is a multi-port network device that divides an input signal into equal or unequal power. The method is widely applied to antenna beam forming and wireless multi-path communication systems. Broadband, miniaturization and simplification are always the research hot spots of microwave circuits. With the rapid development of wireless communication technology, the power divider is attracting increasingly extensive research as an important passive device.
For the power divider, the design requirements mainly include: the circuit has the advantages of port matching, high port isolation, low transmission loss, good phase consistency, simple circuit form and easy batch production. The Wilkinson power divider has good port matching and high isolation, and is widely applied to antenna beam forming and wireless communication.
As shown in fig. 1 and fig. 2, a conventional one-to-six power divider employs a multi-stage one-to-two power divider cascade, or a one-to-three power divider and a one-to-two power divider cascade. The multistage one-to-two power divider is cascaded to form a one-to-six power divider, so that the insertion loss is large and the transmission loss is large. The one-to-three power divider and the one-to-two power divider are cascaded to form the one-to-six power divider, which is complex in structure and tedious in debugging.
Disclosure of Invention
Objects of the invention
The purpose of the invention is: the utility model provides a divide into six microstrip merit to divide ware solves prior art insertion loss big, transmission loss big and structure complicacy, the loaded down with trivial details defect of debugging.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a one-to-six microstrip power divider, which includes a one-to-two unequal power divider and four one-to-two power dividers; the power distribution ratio of the one-to-two unequal power divider is 1: 2, adopting a single-stage form; one-to-two power divider with power distribution ratio of 1: 1, adopting a two-stage cascade form; the output end of the one-to-two unequal power divider is connected with two one-to-two power dividers in parallel, and the output end of the one-to-two unequal power divider with power distribution occupying two parts is connected with two one-to-two power dividers in parallel.
The input signal firstly enters from a one-to-two unequal power divider and is divided into two paths of signals; the power distribution proportion of the one-to-two unequal power divider is 1: 2, wherein a path of signal of 1/3 power enters a one-to-two power divider and then is subjected to power distribution, and the distribution ratio is 1: 1; 2/3, the other path of signal of power enters two paths of signals behind the one-to-two power divider, and then respectively enters the two one-to-two power dividers, and the power distribution ratio is 1: 1: 1: 1; to this end, the input signal is divided by six.
In the one-to-two unequal power divider, the impedance values of the impedance transformation units are respectively 103 Ω, 52 Ω, 60 Ω and 42 Ω, and the resistance value of the isolation resistor is 100 Ω; the impedance transformation units are respectively composed of lambda/4 lines.
In the one-to-two power divider, the impedance values of the impedance transformation units are 83 Ω and 60 Ω respectively, and the resistance values of the isolation resistors are 93 Ω and 265 Ω respectively; the impedance transformation units are respectively composed of lambda/4 lines.
In the one-to-two unequal power divider, the microstrip line widths corresponding to the impedance values of the impedance transformation units are respectively as follows: 103 Ω corresponds to 0.23mm, 52 Ω to 1.05mm, 60 Ω to 0.82mm, and 42 Ω to 1.28 mm.
In the one-to-two unequal power divider, the lengths of the impedance transformation units are 15mm, 14mm and 14mm respectively.
In the one-to-two power divider, the microstrip line widths corresponding to the impedance values of the impedance transformation units are respectively: 83 Ω corresponds to 0.41mm, 60 Ω corresponds to 0.82 mm.
Wherein the length of the impedance transformation unit is 14.5 mm.
(III) advantageous effects
The one-to-six micro-strip power divider provided by the technical scheme can be applied to the bandwidth of 500MHz of the L \ S \ C wave band, has small insertion loss, small transmission loss, simple structure and convenient debugging, and can meet the application of a plurality of application scenes such as antenna beam forming, wireless multi-path communication and the like.
Drawings
Fig. 1 is a schematic block diagram of a conventional one-to-six power divider.
Fig. 2 is a schematic block diagram of a conventional one-to-six power divider (ii).
Fig. 3 is a schematic block diagram of a one-to-six microstrip power divider according to the present invention.
Fig. 4 is an impedance transformation diagram of a one-to-six microstrip power divider according to the present invention.
Fig. 5 is a circuit structure diagram of a one-to-six microstrip power divider according to the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
Referring to fig. 3, the one-to-six microstrip power divider of the present invention includes one-to-two unequal power divider and four one-to-two power dividers; the power distribution ratio of the one-to-two unequal power divider is 1: 2, adopting a single-stage form; one-to-two power divider with power distribution ratio of 1: 1, adopting a two-stage cascade form; the output end of the one-to-two unequal power divider is connected with two one-to-two power dividers in parallel, and the output end of the one-to-two unequal power divider with power distribution occupying two parts is connected with two one-to-two power dividers in parallel.
The input signal is firstly input by a one-to-two unequal power divider and is divided into two paths of signals. The power distribution proportion of the one-to-two unequal power divider is 1: 2; wherein 1/3 power's a way signal gets into one and two merit dividers, then is carried out power distribution again, and the distribution ratio is 1: 1; 2/3, the other path of signal of power enters two paths of signals behind the one-to-two power divider, and then respectively enters the two one-to-two power dividers, and the power distribution ratio is 1: 1: 1: 1; to this end, the input signal is divided by six.
In the one-to-two unequal power divider, the impedance values of the impedance transformation units are respectively 103 Ω, 52 Ω, 60 Ω and 42 Ω, and the resistance value of the isolation resistor is 100 Ω. The impedance transformation units are each composed of lambda/4 lines, see fig. 4.
In the one-to-two power divider, the impedance values of the impedance transformation units are 83 Ω and 60 Ω respectively, and the resistance values of the isolation resistors are 93 Ω and 265 Ω respectively. The impedance transformation units are each composed of lambda/4 lines, see fig. 4.
Referring to fig. 5, an embodiment of a one-to-six microstrip power divider is shown, in which a 2.9GHz to 3.4GHz band is adopted in an S-band, a microstrip line substrate having a dielectric constant of 3.48 and a plate thickness of 0.5mm is used, and a circuit configuration diagram and a real board diagram thereof refer to fig. 5.
In the one-to-two unequal power divider, the microstrip line widths corresponding to the impedance values of the impedance transformation units are respectively 0.23mm (103 omega), 1.05mm (52 omega), 0.82mm (60 omega) and 1.28mm (42 omega), and the resistance value of the isolation resistor is 100 omega. The lengths of the impedance transformation units are 15mm, 14mm, 14mm and 14mm respectively.
In the one-to-two power divider, the microstrip line widths corresponding to the impedance values of the impedance transformation units are respectively 0.41mm (83 Ω) and 0.82mm (60 Ω), and the resistances of the isolation resistors are respectively 93 Ω and 265 Ω. The length of the impedance transformation unit is 14.5 mm.
And (4) carrying out simulation by an HFSS simulation tool, wherein the isolation of each port is greater than 25dB, and the insertion loss is less than 1.5 dB.
According to the technical scheme, the power distribution ratio of the power supply is 1: 2, and utilizes a microstrip line substrate with a dielectric constant of 3.58 and a plate thickness of 0.5 mm. Compared with a one-to-six power divider (shown in figure 1) formed by cascading a one-to-three power divider and a one-to-two power divider, the power divider is simple in structure and convenient to debug. Compared with the traditional one-to-six power divider adopting multi-stage one-to-two power divider cascade connection (see the attached figure 2), the power divider has the advantages of small insertion loss and small transmission loss.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A one-to-six microstrip power divider is characterized by comprising a one-to-two unequal power divider and four one-to-two power dividers; the power distribution ratio of the one-to-two unequal power divider is 1: 2, adopting a single-stage form; one-to-two power divider with power distribution ratio of 1: 1, adopting a two-stage cascade form; the output end of the one-to-two unequal power divider is connected with two one-to-two power dividers in parallel, and the output end of the one-to-two unequal power divider with power distribution occupying two parts is connected with two one-to-two power dividers in parallel.
2. The one-to-six microstrip power divider of claim 1, wherein the input signal is first input by a one-to-two unequal power divider and divided into two signals; the power distribution proportion of the one-to-two unequal power divider is 1: 2, wherein a path of signal of 1/3 power enters a one-to-two power divider and then is subjected to power distribution, and the distribution ratio is 1: 1; 2/3, the other path of signal of power enters two paths of signals behind the one-to-two power divider, and then respectively enters the two one-to-two power dividers, and the power distribution ratio is 1: 1: 1: 1; to this end, the input signal is divided by six.
3. The one-to-six microstrip power divider according to claim 2, wherein in the one-to-two unequal power divider, the impedance values of the impedance transformation units are 103 Ω, 52 Ω, 60 Ω and 42 Ω, respectively, and the resistance value of the isolation resistor is 100 Ω; the impedance transformation units are respectively composed of lambda/4 lines.
4. The one-to-six microstrip power divider according to claim 3, wherein in the one-to-two microstrip power divider, the impedance values of the impedance transformation units are 83 Ω and 60 Ω, respectively, and the resistances of the isolation resistors are 93 Ω and 265 Ω, respectively; the impedance transformation units are respectively composed of lambda/4 lines.
5. The one-to-six microstrip power divider according to claim 4, wherein in the one-to-two unequal power divider, the microstrip line widths corresponding to the impedance values of the impedance transformation units are respectively: 103 Ω corresponds to 0.23mm, 52 Ω to 1.05mm, 60 Ω to 0.82mm, and 42 Ω to 1.28 mm.
6. The one-to-six microstrip power divider according to claim 5, wherein in the one-to-two unequal power divider, the lengths of the impedance transformation units are 15mm, 14mm and 14mm, respectively.
7. The one-to-six microstrip power divider according to claim 6, wherein in the one-to-two microstrip power divider, the microstrip line widths corresponding to the impedance values of the impedance transformation units are respectively: 83 Ω corresponds to 0.41mm, 60 Ω corresponds to 0.82 mm.
8. The one-to-six microstrip power divider of claim 7, wherein the length of the impedance transformation unit is 14.5 mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834728A (en) * | 2020-08-13 | 2020-10-27 | 郝艺益 | Broadband unequal-dividing power divider of coplanar waveguide circuit |
| CN112736395A (en) * | 2020-12-07 | 2021-04-30 | 中国科学院空天信息创新研究院 | Wilkinson power divider |
| CN114156622A (en) * | 2021-11-30 | 2022-03-08 | 郝艺益 | Broadband low-loss one-to-six power divider and design method thereof |
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| US6674410B1 (en) * | 2002-05-15 | 2004-01-06 | The United States Of America As Represented By The Secretary Of The Air Force | Six-port junction/directional coupler with 0/90/180/270 ° output phase relationships |
| US20060072005A1 (en) * | 2004-10-06 | 2006-04-06 | Thomas-Wayne Patty J | Method and apparatus for 3-D electron holographic visual and audio scene propagation in a video or cinematic arena, digitally processed, auto language tracking |
| CN107342449A (en) * | 2017-06-29 | 2017-11-10 | 中国航空工业集团公司雷华电子技术研究所 | A kind of waveguide power divider |
| CN109066043A (en) * | 2018-08-30 | 2018-12-21 | 南京理工大学 | A kind of X-band one divides three power splitters |
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2019
- 2019-11-12 CN CN201911099682.5A patent/CN110783681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6674410B1 (en) * | 2002-05-15 | 2004-01-06 | The United States Of America As Represented By The Secretary Of The Air Force | Six-port junction/directional coupler with 0/90/180/270 ° output phase relationships |
| US20060072005A1 (en) * | 2004-10-06 | 2006-04-06 | Thomas-Wayne Patty J | Method and apparatus for 3-D electron holographic visual and audio scene propagation in a video or cinematic arena, digitally processed, auto language tracking |
| CN107342449A (en) * | 2017-06-29 | 2017-11-10 | 中国航空工业集团公司雷华电子技术研究所 | A kind of waveguide power divider |
| CN109066043A (en) * | 2018-08-30 | 2018-12-21 | 南京理工大学 | A kind of X-band one divides three power splitters |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834728A (en) * | 2020-08-13 | 2020-10-27 | 郝艺益 | Broadband unequal-dividing power divider of coplanar waveguide circuit |
| CN112736395A (en) * | 2020-12-07 | 2021-04-30 | 中国科学院空天信息创新研究院 | Wilkinson power divider |
| CN114156622A (en) * | 2021-11-30 | 2022-03-08 | 郝艺益 | Broadband low-loss one-to-six power divider and design method thereof |
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Application publication date: 20200211 |