CN112909470A - Ultra-wideband Wilkinson power divider system - Google Patents
Ultra-wideband Wilkinson power divider system Download PDFInfo
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- CN112909470A CN112909470A CN202110045564.7A CN202110045564A CN112909470A CN 112909470 A CN112909470 A CN 112909470A CN 202110045564 A CN202110045564 A CN 202110045564A CN 112909470 A CN112909470 A CN 112909470A
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- microstrip line
- output end
- path
- end microstrip
- 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
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Abstract
The invention discloses an ultra-wideband Wilkinson power divider system, which comprises an insulating substrate and a plurality of microstrip lines integrated on the insulating substrate, wherein each microstrip line comprises an input end microstrip line and an output end microstrip line, the output end microstrip lines are four paths distributed at intervals, a first path of output end microstrip line and a second path of output end microstrip line are connected with a first-stage a path of output end microstrip line, a third path of output end microstrip line and a fourth path of output end microstrip line are connected with a first-stage b path of output end microstrip line, the first-stage a path of output end microstrip line and the first-stage b path of output end microstrip line are connected with the input end microstrip line, at least two sections of impedance converters are cascaded between the first path of output end microstrip line and the second path of output end microstrip line, and at least two sections of. Through the improved design of the ultra-wideband Wilkinson power divider system, the power divider system has good performance indexes in the whole frequency band range.
Description
Technical Field
The invention particularly relates to an ultra-wideband Wilkinson power divider system.
Background
The power divider is a device which divides one path of input signal energy into two paths or multiple paths of energy with equal or unequal outputs. The main technical parameters of the power divider include power loss, voltage standing wave ratio of each port, isolation between power distribution ports, amplitude balance, phase balance, power capacity, bandwidth and the like. At present, a power divider system has large transmission loss and has high requirements on the isolation between output ports.
Disclosure of Invention
The invention aims to provide an ultra-wideband Wilkinson power divider system to solve the above-mentioned problems.
In order to solve the technical problem, the invention provides an ultra wide band Wilkinson power divider system which comprises an insulating base body and a plurality of microstrip lines integrated on the insulating base body, wherein each microstrip line comprises an input end microstrip line and an output end microstrip line, the output end microstrip lines are four paths distributed at intervals, a first path of output end microstrip line and a second path of output end microstrip line are connected with a first-stage a-path output end microstrip line, a third path of output end microstrip line and a fourth path of output end microstrip line are connected with a first-stage b-path output end microstrip line, the first-stage a-path output end microstrip line and the first-stage b-path output end microstrip line are connected with the input end microstrip line, at least two sections of impedance transformers are cascaded between the first path of output end microstrip line and the second path of output end microstrip line, and at.
Furthermore, at least two sections of impedance converters are connected in series between the first-stage a-path output end microstrip line and the first-stage b-path output end microstrip line.
Further, the insulating substrate is a ceramic substrate.
Furthermore, three sections of impedance converters are connected in a cascade mode between the first output end microstrip line and the second output end microstrip line, and three sections of impedance converters are connected in a cascade mode between the third output end microstrip line and the fourth output end microstrip line.
Furthermore, a three-section impedance converter is also connected in series between the first-stage a-path output end microstrip line and the first-stage b-path output end microstrip line.
The invention has the beneficial effects that: the ultra-wideband Wilkinson power divider system designed by the application can output input power in four equal parts, transmission loss is as small as possible, and high isolation is achieved among output ports. Meanwhile, three sections of impedance converters are cascaded, so that reflected waves generated by all sections can be mutually counteracted. The power divider has good performance indexes in the whole frequency band range, the standing-wave ratio is less than 1.3, the transmission loss is less than 0.3db, and the isolation is less than-20 db.
Drawings
Fig. 1 is a schematic structural diagram of an ultra-wideband Wilkinson power divider system.
Fig. 2 is a simulation diagram of return loss of the ultra-wideband Wilkinson power divider system.
Fig. 3 is a schematic diagram of transmission coefficient simulation of an ultra-wideband Wilkinson power divider system.
Fig. 4 is a schematic diagram of isolation simulation of an ultra-wideband Wilkinson power divider system.
Wherein: 1. an insulating substrate; 2. a first output microstrip line; 3. a second output end microstrip line; 4. a third output microstrip line; 5. a fourth output end microstrip line; 6. a first-stage a-path output end microstrip line; 7. a first-stage b-path output end microstrip line; 8. an impedance transformer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "vertical" or the like does not require that the components be perfectly vertical, but rather may be slightly inclined. For example, "vertical" merely means that the direction is more vertical than "horizontal", and does not mean that the structure must be perfectly vertical, but may be slightly inclined.
Referring to fig. 1, the ultra-wideband Wilkinson power divider system includes an insulating substrate 1 and a plurality of microstrip lines integrated on the insulating substrate 1, where the microstrip lines include an input-end microstrip line and an output-end microstrip line.
Wherein, the insulating matrix 1 is a ceramic matrix; in actual operation, a ceramic material with the dielectric constant of 5.9 is adopted as a dielectric material, the ceramic substrate has a high dielectric constant, a circuit can be miniaturized, the dielectric constant is stable in the whole working frequency band, the design of a broadband circuit is facilitated, a low material loss angle is achieved, the heat conducting performance is good, and the broadband circuit is suitable for high power.
The invention adopts a four-way output mode, and particularly shows that microstrip lines at the output end are distributed at intervals in four ways.
The first output end microstrip line 2 and the second output end microstrip line 3 are connected with a first-level a output end microstrip line 6, the third output end microstrip line 4 and the fourth output end microstrip line 5 are connected with a first-level b output end microstrip line 7, and the first-level a output end microstrip line 6 and the first-level b output end microstrip line 7 are connected with an input end microstrip line.
Meanwhile, at least two sections of impedance converters 8 are cascaded between the first output end microstrip line 2 and the second output end microstrip line 3, and at least two sections of impedance converters 8 are cascaded between the third output end microstrip line 4 and the fourth output end microstrip line 5. At least two sections of impedance transformers 8 are also connected in series between the first-stage a-path output end microstrip line 6 and the first-stage b-path output end microstrip line 7.
Further, three impedance converters 8 are cascaded between the first output end microstrip line 2 and the second output end microstrip line 3, and three impedance converters 8 are cascaded between the third output end microstrip line 4 and the fourth output end microstrip line 5. Three stages of impedance converters 8 are also connected in series between the first stage a path output end microstrip line 6 and the first stage b path output end microstrip line 7.
The ultra-wideband Wilkinson power divider system designed by the application can output input power in four equal parts, transmission loss is as small as possible, and high isolation is achieved among output ports. Meanwhile, three sections of impedance converters 8 are cascaded, so that reflected waves generated by all sections can be mutually offset.
Referring to fig. 2-4, the ultra-wideband Wilkinson power divider system operates in the 0.5-2.5GHz working band and simulation results show that the power divider has good performance indexes in the whole frequency band range, the standing wave ratio is less than 1.3, the transmission loss is less than 0.3db, and the isolation is < -20 db.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention in specific cases.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a ware system is divided to ultra wide band Wilkinson merit which characterized in that: the microstrip line comprises an insulating substrate and a plurality of microstrip lines integrated on the insulating substrate, wherein the microstrip lines comprise an input end microstrip line and an output end microstrip line, the output end microstrip line is four paths distributed at intervals, a first path of output end microstrip line and a second path of output end microstrip line are connected with a first path of a output end microstrip line, a third path of output end microstrip line and a fourth path of output end microstrip line are connected with a first path of b output end microstrip line, the first path of a output end microstrip line and the first path of b output end microstrip line are connected with the input end microstrip line, at least two sections of impedance converters are cascaded between the first path of output end microstrip line and the second path of output end microstrip line, and at least two sections of impedance converters are cascaded between the third path.
2. The ultra-wideband Wilkinson power divider system of claim 1, wherein: at least two sections of impedance converters are also connected in series between the first-stage a-path output end microstrip line and the first-stage b-path output end microstrip line.
3. The ultra-wideband Wilkinson power divider system of claim 1, wherein: the insulating substrate is a ceramic substrate.
4. The ultra-wideband Wilkinson power divider system of claim 1, wherein: three sections of impedance converters are connected in a cascade mode between the first output end microstrip line and the second output end microstrip line, and three sections of impedance converters are connected in a cascade mode between the third output end microstrip line and the fourth output end microstrip line.
5. The ultra-wideband Wilkinson power divider system of claim 1, wherein: and a three-section impedance converter is also connected in series between the first-stage a-path output end microstrip line and the first-stage b-path output end microstrip line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110045564.7A CN112909470A (en) | 2021-01-13 | 2021-01-13 | Ultra-wideband Wilkinson power divider system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110045564.7A CN112909470A (en) | 2021-01-13 | 2021-01-13 | Ultra-wideband Wilkinson power divider system |
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| Publication Number | Publication Date |
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| CN112909470A true CN112909470A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110045564.7A Withdrawn CN112909470A (en) | 2021-01-13 | 2021-01-13 | Ultra-wideband Wilkinson power divider system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115313007A (en) * | 2022-04-12 | 2022-11-08 | 河北军澍电子科技有限公司 | Ultra-wideband miniaturized microstrip power divider |
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2021
- 2021-01-13 CN CN202110045564.7A patent/CN112909470A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115313007A (en) * | 2022-04-12 | 2022-11-08 | 河北军澍电子科技有限公司 | Ultra-wideband miniaturized microstrip power divider |
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Application publication date: 20210604 |