CN115173012A - Open stub odd power divider circuit applied to wifi - Google Patents
Open stub odd power divider circuit applied to wifi Download PDFInfo
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- CN115173012A CN115173012A CN202210847760.0A CN202210847760A CN115173012A CN 115173012 A CN115173012 A CN 115173012A CN 202210847760 A CN202210847760 A CN 202210847760A CN 115173012 A CN115173012 A CN 115173012A
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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
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Abstract
The invention provides an open stub odd power divider circuit applied to wifi, which is used for distributing signals to a plurality of ports from one port and comprises the following components: the signal distribution device comprises a bottom signal input layer, a middle metal grounding layer and an upper signal distribution layer, wherein the middle metal grounding layer is arranged between the bottom signal input layer and the upper signal distribution layer so as to realize communication connection between the bottom signal input layer and the upper signal distribution layer; the upper-layer signal distribution layer comprises open-circuit stubs and transmission lines, the open-circuit stubs are distributed in a ring shape, and the transmission lines are distributed in the ring shape of the open-circuit stubs in a folding mode; the bottom signal input layer is used for transmitting an input signal to the upper signal distribution layer so as to drive the power divider; the upper signal distribution layer is used for dividing the input signal into a plurality of constant-amplitude output signals.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an open stub odd-numbered power divider circuit applied to wifi.
Background
The power divider is an important device for realizing signal distribution from one port to a plurality of ports in a microwave system, and is widely applied to microwave equipment such as phased array radars, multipath relay communicators and the like.
In the prior art, although the Luzzatto power divider solves the problem of plane layout of the original Wilkinson power divider, the size of the Luzzatto power divider cannot be reduced all the time due to the quarter-wavelength line, and the Luzzatto power divider is difficult to apply to a modern communication system.
Disclosure of Invention
The invention provides an open stub odd-numbered power divider circuit applied to wifi, and aims to solve the problem that the size of a power divider cannot be reduced.
According to a first aspect of the present invention, there is provided an open stub odd power divider circuit for wifi applications for distributing a signal from one port to a plurality of ports, comprising: the signal distribution device comprises a bottom signal input layer, a middle metal grounding layer and an upper signal distribution layer, wherein the middle metal grounding layer is arranged between the bottom signal input layer and the upper signal distribution layer so as to realize communication connection between the bottom signal input layer and the upper signal distribution layer;
the upper-layer signal distribution layer comprises open stubs and transmission lines, the open stubs are distributed in a ring shape, and the transmission lines are distributed in the ring shape of the open stubs in a folding mode;
the bottom signal input layer is used for transmitting an input signal to the upper signal distribution layer so as to drive the power divider;
the upper signal distribution layer is used for dividing the input signal into a plurality of constant-amplitude output signals.
Optionally, the upper signal distribution layer further includes a first dielectric substrate, a first feeding circle, a first output port, a second output port, and a third output port, where the transmission lines include a first transmission line, a second transmission line, and a third transmission line;
the first feeding circle, the first output port, the second output port, the third output port, the first transmission line, the second transmission line and the third transmission line are all arranged on the first dielectric substrate, the first feeding circle is arranged at the center of the first dielectric substrate, the first ends of the first transmission line, the second transmission line and the third transmission line are all connected with the first feeding circle, and the second ends of the first transmission line, the second transmission line and the third transmission line are respectively connected with the first output port, the second output port and the third output port.
Optionally, the transmission line further includes a fourth transmission line, a fifth transmission line, a sixth transmission line, a seventh transmission line, an eighth transmission line, and a ninth transmission line, and the open stub includes a first stub, a second stub, a third stub, a fourth stub, a fifth stub, and a sixth stub;
the first end of the first stub is connected to the first output port, the second end of the first stub is connected to the first end of the fourth transmission line, the first end of the second stub is connected to the second output port, the second end of the second stub is connected to the first end of the fifth transmission line, the first end of the third stub is connected to the second output port, the second end of the third stub is connected to the first end of the sixth transmission line, the first end of the fourth stub is connected to the third output port, the second end of the fourth stub is connected to the first end of the seventh transmission line, the first end of the fifth stub is connected to the third output port, the second end of the fifth stub is connected to the first end of the eighth transmission line, the first end of the sixth stub is connected to the first output port, and the second end of the sixth stub is connected to the first end of the ninth transmission line.
Optionally, the first to sixth stubs each include a plurality of first sub-stubs, second sub-stubs, and third sub-stubs;
the first sub-stub, the second sub-stub and the third sub-stub are arranged in a shape of \ 21274, a first end of the second sub-stub is connected with the first sub-stub, and a second end of the second sub-stub is connected with the third sub-stub.
Optionally, the upper signal distribution layer further includes a first chip resistor, a second chip resistor, and a third chip resistor;
the first end of the first chip resistor is connected with the second end of the fourth transmission line, the second end of the first chip resistor is connected with the second end of the fifth transmission line, the first end of the second chip resistor is connected with the second end of the sixth transmission line, the second end of the second chip resistor is connected with the second end of the seventh transmission line, the first end of the third chip resistor is connected with the second end of the eighth transmission line, and the second end of the third chip resistor is connected with the second end of the ninth transmission line.
Optionally, the bottom signal input layer includes a second dielectric substrate and a second feeding circle;
the second feeding circle is arranged on the second dielectric substrate, and the second feeding circle and the first feeding circle are arranged on the same vertical line.
Optionally, the bottom signal input layer further includes a tenth transmission line, and the tenth transmission line is connected to the second feeding circle to input a signal to the power divider.
Optionally, the middle metal ground layer includes a through hole, and the through hole, the second feeding circle and the first feeding circle are disposed on the same vertical line.
Optionally, the first transmission line, the second transmission line, the third transmission line and the tenth transmission line have the same characteristic impedance.
Optionally, the first transmission line, the second transmission line and the third transmission line have the same folding shape and size, and the fourth transmission line to the ninth transmission line have the same folding shape and size.
Optionally, the resistance values of the first chip resistor, the second chip resistor and the third chip resistor are the same.
According to the open stub odd-numbered power divider circuit applied to wifi, the length of a quarter-wavelength line in the existing power divider is reduced by adding the open stub into the power divider, and the size of the power divider is realized; in addition, the transmission lines are folded and distributed, so that the size of the power divider is further reduced, and the internal structure of the power divider is more compact.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a Wilkinson power divider in the prior art;
FIG. 2 is a schematic diagram of a prior art Luzzatto power splitter;
FIG. 3 is a first schematic diagram illustrating a structure of the open stub odd power divider circuit applied to wifi according to an embodiment of the present invention;
FIG. 4 is a second schematic structural diagram of the open stub odd-numbered power divider circuit applied to wifi according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third embodiment of the open stub odd-numbered power divider circuit applied to wifi according to the present invention;
FIG. 6 is a fourth schematic diagram illustrating the structure of the open stub odd-numbered power divider circuit applied to wifi according to an embodiment of the present invention;
FIG. 7 is a fifth exemplary schematic diagram of the open stub odd power divider circuit applied to wifi according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of the open stub in the open stub odd power divider circuit applied to wifi according to an embodiment of the present invention;
fig. 9 is a first simulation plot of performance parameters of the open stub odd power divider circuit applied to wifi in accordance with one embodiment of the present invention;
FIG. 10 is a simulation diagram of performance parameters of the open stub odd power divider circuit applied to wifi according to an embodiment of the present invention;
fig. 11 is a simulation diagram of performance parameters of the open stub odd-numbered power divider circuit applied to wifi according to an embodiment of the present invention.
Description of the reference numerals:
1-upper signal distribution layer;
101-a transmission line;
1011-a first transmission line;
1012-a second transmission line;
1013-a third transmission line;
1014-a fourth transmission line;
1015-a fifth transmission line;
1016-a sixth transmission line;
1017-a seventh transmission line;
1018-eighth transmission line;
1019-ninth transmission line;
102-open stub;
1021-a first stub;
1022 — a second stub;
1023-a third stub;
1024-a fourth stub;
1025-fifth stub;
1026-sixth stub;
1027-first sub-stub;
1028 — a second sub-stub;
1029-third sub-stub;
103-a first dielectric substrate;
104-a first feeding circle;
1051-a first output port;
1052-a second output port;
1053-a third output port;
1061-a first chip resistor;
1062-a second chip resistor;
1063-third chip resistor;
2-an intermediate metal ground plane;
201-a through hole;
3-a bottom signal input layer;
301-a second dielectric substrate;
302-a second feeding circle;
303-tenth transmission line;
401 — first quarter wave line;
402-second quarter-wave line;
403-third quarter wavelength line;
404-a first isolation resistance;
405 a second isolation resistor;
406-third isolation resistance.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Before the present application, the applicant has made extensive studies on the circuit structure of the power divider, and based on the studies, the circuit structure of the Wilkinson power divider shown in fig. 1 and the circuit structure of the Luzzatto power divider shown in fig. 2 are proposed, and the circuit of the Wilkinson power divider shown in fig. 1 includes a first quarter-wave line 401, a second quarter-wave line 402, a third quarter-wave line 403, a first isolation resistor 404, a second isolation resistor 405, and a third isolation resistor 406.
Referring to fig. 1, the first quarter-wave line 401, the second quarter-wave line 402, and the third quarter-wave line 403 are distributed in parallel, the first isolation resistor 404 is connected in series with the second isolation resistor 405, a first end of the first isolation resistor 404 is connected to an output end of the first quarter-wave line 401, a second end of the first isolation resistor 404 is connected to an output end of the second quarter-wave line 402 and a first end of the second isolation resistor 405, a second end of the second isolation resistor 405 is connected to an output end of the third quarter-wave line 403, a first end of the third isolation resistor 406 is connected to a first end of the first isolation resistor 404, and a second end of the third isolation resistor 403 is connected to a second end of the second isolation resistor 405.
The Wilkinson power divider in the scheme is a one-to-three power divider, three isolation resistors are adopted, and when the number of the isolation resistors is more than 3, the isolation resistors need to be bridged, so that the manufacturing is difficult; and the quarter-wave line of the sub-scheme results in that the size of the power divider cannot be reduced.
Referring to fig. 2, fig. 2 is a circuit structure diagram of a luzzatta power divider, which improves the Wilkinson power divider in fig. 1 into an annular structure by using an equivalent circuit method, so as to solve the problem of arrangement of isolation resistors among multiple output ports, but the size of the power divider still cannot be reduced due to the existence of a quarter-wave line.
In view of this, the present invention provides a circuit structure of an open stub odd-numbered power divider circuit applied to wifi, which replaces the quarter-wave line with an open stub on the basis of the Luzzatto power divider shown in fig. 2, and folds and arranges transmission lines, so that the size of the power divider is reduced, and the performance standard is not reduced.
The scheme of the invention is specifically explained as follows:
referring to fig. 3, the present invention provides an open stub odd-numbered power divider circuit applied to wifi for distributing a signal from one port to a plurality of ports, including: the signal distribution device comprises a bottom signal input layer 3, a middle metal grounding layer 2 and an upper signal distribution layer 1, wherein the middle metal grounding layer 2 is arranged between the bottom signal input layer 3 and the upper signal distribution layer 1 so as to realize communication connection between the bottom signal input layer 3 and the upper signal distribution layer 1;
the upper signal distribution layer 1 includes an open stub 102 and a transmission line 101, the open stub 102 is distributed in a ring shape, and the transmission line 101 is folded and distributed in the ring shape of the open stub;
the bottom signal input layer 3 is used for transmitting an input signal to the upper signal distribution layer 1 so as to drive a power divider;
the upper signal distribution layer 1 is used for dividing the input signal into a plurality of constant amplitude output signals.
Referring to fig. 8, regarding the open stub 102, the open stub 102 includes a plurality of first sub-stubs 1027, second sub-stubs 1028, and third sub-stubs 1029;
the first sub-stub 1027, the second sub-stub 1028 and the third sub-stub 1029 are arranged in a shape of a trapezoid 21274, a first end of the second sub-stub 1028 is connected to the first sub-stub 1027, and a second end of the second sub-stub is connected to the third sub-stub 1029.
Specifically, the open stubs 102 are also folded and distributed in space.
In the above scheme, based on the equivalent network theory, the open stub is added, the internal circuit structure of the open stub is in a shape of '21274', the area of the power divider is reduced, in addition, the transmission line and the open stub adopt a compact arrangement mode of folding wiring, the circuit area of the open stub odd-numbered power divider circuit applied to wifi is further reduced, and the power divider has a compact structure and good performances under the condition of reduced area.
In a specific embodiment, the invention can be used in an odd branch power distribution network or an antenna feed network, and has wide application in power synthesis, decomposition, array antenna and other aspects.
Specifically, the open stub odd-numbered power divider circuit applied to wifi can be applied to wireless networks such as wifi and zigbee, and the applied materials include different substrates such as a printed circuit board, gallium arsenide and CMOS.
Referring to fig. 4, the upper signal distribution layer 1 further includes a first dielectric substrate 103, a first feeding circle 104, a first output port 1051, a second output port 1052, and a third output port 1053, and the transmission lines include a first transmission line 1011, a second transmission line 1012, and a third transmission line 1013;
the first feeding circle 104, the first output port 1051, the second output port 1052, the third output port 1053, the first transmission line 1011, the second transmission line 1012 and the third transmission line 1013 are all disposed on the first dielectric substrate 103, the first feeding circle 104 is disposed at a central position of the first dielectric substrate 103, first ends of the first transmission line 1011, the second transmission line 1012 and the third transmission line 1013 are all connected to the first feeding circle 104, and second ends of the first transmission line 1011, the second transmission line 1012 and the third transmission line 1013 are respectively connected to the first output port 1051, the second output port 1052 and the third output port 1053.
In a specific embodiment, referring to fig. 5, the transmission lines further include a fourth transmission line 1014, a fifth transmission line 1015, a sixth transmission line 1016, a seventh transmission line 1017, an eighth transmission line 1018, and a ninth transmission line 1019, and the open stub 102 includes a first stub 1021, a second stub 1022, a third stub 1023, a fourth stub 1024, a fifth stub 1025, and a sixth stub 1026;
wherein a first end of the first stub 1021 is connected to the first output port 1051, a second end of the first stub 1021 is connected to a first end of the fourth transmission line 1014, a first end of the second stub 1022 is connected to the second output port 1052, a second end of the second stub 1022 is connected to a first end of the fifth transmission line 1015, a first end of the third stub 1023 is connected to the second output port 1052, a second end of the third stub 1023 is connected to a first end of the sixth transmission line 1016, a first end of the fourth stub 1024 is connected to the third output port 1053, a second end of the fourth stub 1024 is connected to a first end of the seventh transmission line 1017, a first end of the fifth stub 1025 is connected to the third output port 1053, a second end of the fifth stub 1025 is connected to a first end of the eighth transmission line 1018, a first end of the sixth stub 1026 is connected to the first output port 1051, and a second end of the sixth stub is connected to a second end of the ninth stub 1019.
In other embodiments, referring to fig. 5, the upper signal distribution layer 1 further includes a first chip resistor 1061, a second chip resistor 1062, and a third chip resistor 1063;
a first end of the first chip resistor 1061 is connected to the second end of the fourth transmission line 1014, a second end of the first chip resistor 1061 is connected to the second end of the fifth transmission line 1015, a first end of the second chip resistor 1062 is connected to the second end of the sixth transmission line 1016, a second end of the second chip resistor 1062 is connected to the second end of the seventh transmission line 1017, a first end of the third chip resistor 1063 is connected to the second end of the eighth transmission line 1018, and a second end of the third chip resistor 1063 is connected to the second end of the ninth transmission line 1019.
In a specific embodiment, the first chip resistor 1061, the second chip resistor 1062, and the third chip resistor 1063 have the same resistance value.
In the above scheme, the first transmission line, the second transmission line and the third transmission line connecting the first feeding circle and each output port are arranged in a folded manner, so that the longitudinal length of the open stub odd-numbered power divider circuit applied to wifi is reduced to 1/2 of the original length, and the annular area is reduced to 1/4 of the original length.
In addition, the fourth to ninth transmission lines and the first to sixth open stubs are annularly folded and arranged, further reducing the area of the open stub odd-numbered power divider circuit applied to wifi.
Referring to fig. 6, regarding the bottom signal input layer 3, the bottom signal input layer 3 includes a second dielectric substrate 301 and a second feeding circle 302;
the second feeding circle 302 is disposed on the second dielectric substrate, and the second feeding circle 302 and the first feeding circle 104 are disposed on the same vertical line.
Regarding the selection of the dielectric substrate, in a specific embodiment, the first dielectric substrate 103 and the second dielectric substrate 301 adopt an RO4350 high-frequency circuit board with a dielectric constant of 3.66, and the thickness is 0.2-1mm, for example, 0.508mm.
Of course, the present invention is not limited thereto, and other materials, dielectric constants and thicknesses of the first dielectric substrate 103 and the second dielectric substrate 301 are within the protection scope of the present invention.
In another preferred embodiment, with continuing reference to fig. 6, the bottom signal input layer 3 further includes a tenth transmission line 303, and the tenth transmission line 303 is connected to the second feeding circle 302 to input a signal to the power divider.
In a specific embodiment, the first transmission line 1011, the second transmission line 1012, the third transmission line 1013, and the tenth transmission line 303 have the same characteristic impedance.
In other embodiments, the first transmission line 1011, the second transmission line 1012, and the third transmission line 1013 have the same folded shape and size, and the fourth transmission line 1014 to the ninth transmission line 1019 have the same folded shape and size.
Referring to fig. 7, regarding the middle metal ground layer 2, the middle metal ground layer 2 includes a through hole 201, and the through hole 201 and the second feeding circle 302 and the first feeding circle 104 are disposed on the same vertical line.
In one embodiment, the transmission line, the open stub, the first to third chip resistors, and the intermediate metal ground layer are all made of copper.
With respect to the performance of the open stub odd-numbered power divider circuit applied to wifi, please refer to fig. 9-11, fig. 9-11 are graphs showing simulation results of S-parameters of the simulation software HFSS 18.0 for the open stub odd-numbered power divider circuit applied to wifi; wherein, fig. 9 and 10 show S11, S22, S33, S44, S21, S31, S41 of the open stub odd power divider circuit applied to wifi, as can be seen from the figure, within the operating frequency band of 2.0-2.8GHz, S11, S22, S33, S44 of the device are all less than 10db, and S21, S31, S41 are all at-4.9 ± 0.15dB (ideal value is-4.77 dB); it can be seen that the open stub odd power divider circuit applied to wifi has good port matching performance and transmission characteristics.
Fig. 11 is a graph of simulation results of S23, S24, and S34 of the open stub odd-numbered power divider circuit applied to wifi, and it can be seen from the graph that S23, S24, and S34 are all smaller than-18 dB within 2.0-2.8GHz, and thus, the open stub odd-numbered power divider circuit applied to wifi has good isolation between output ports.
It can be seen that the open stub odd power divider circuit applied to wifi in the above solution has no performance degradation on the basis of area reduction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. An open stub odd power divider circuit for wifi applications for distributing a signal from one port to a plurality of ports, comprising: the signal distribution device comprises a bottom signal input layer, a middle metal grounding layer and an upper signal distribution layer, wherein the middle metal grounding layer is arranged between the bottom signal input layer and the upper signal distribution layer so as to realize communication connection between the bottom signal input layer and the upper signal distribution layer;
the upper-layer signal distribution layer comprises open stubs and transmission lines, the open stubs are distributed in a ring shape, and the transmission lines are distributed in the ring shape of the open stubs in a folding mode;
the bottom signal input layer is used for transmitting an input signal to the upper signal distribution layer so as to drive the power divider;
the upper signal distribution layer is used for dividing the input signal into a plurality of constant-amplitude output signals.
2. The open stub odd power divider circuit as claimed in claim 1, wherein the upper signal distribution layer further comprises a first dielectric substrate, a first feeding circle, a first output port, a second output port, a third output port, the transmission lines comprising a first transmission line, a second transmission line, and a third transmission line;
the first feeding circle, the first output port, the second output port, the third output port, the first transmission line, the second transmission line and the third transmission line are all arranged on the first dielectric substrate, the first feeding circle is arranged at the center of the first dielectric substrate, the first ends of the first transmission line, the second transmission line and the third transmission line are all connected with the first feeding circle, and the second ends of the first transmission line, the second transmission line and the third transmission line are respectively connected with the first output port, the second output port and the third output port.
3. The odd power divider circuit of open stub for wifi as claimed in claim 2 wherein the transmission lines further include a fourth transmission line, a fifth transmission line, a sixth transmission line, a seventh transmission line, an eighth transmission line and a ninth transmission line, the open stub includes a first stub, a second stub, a third stub, a fourth stub, a fifth stub and a sixth stub;
wherein a first end of the first stub is connected to the first output port, a second end of the first stub is connected to a first end of the fourth transmission line, a first end of the second stub is connected to the second output port, a second end of the second stub is connected to a first end of the fifth transmission line, a first end of the third stub is connected to the second output port, a second end of the third stub is connected to a first end of the sixth transmission line, a first end of the fourth stub is connected to the third output port, a second end of the fourth stub is connected to a first end of the seventh transmission line, a first end of the fifth stub is connected to the third output port, a second end of the fifth stub is connected to a first end of the eighth transmission line, a first end of the sixth stub is connected to the first output port, and a second end of the sixth stub is connected to a first end of the ninth transmission line.
4. The open stub odd power divider circuit as claimed in claim 3, wherein the first to sixth stubs each comprise a number of first, second and third sub-stubs;
the first sub-stub, the second sub-stub and the third sub-stub are arranged in a shape of \ 21274, a first end of the second sub-stub is connected with the first sub-stub, and a second end of the second sub-stub is connected with the third sub-stub.
5. The open stub odd power divider circuit as claimed in claim 4, wherein the upper signal distribution layer further comprises a first patch resistor, a second patch resistor and a third patch resistor;
the first end of the first chip resistor is connected with the second end of the fourth transmission line, the second end of the first chip resistor is connected with the second end of the fifth transmission line, the first end of the second chip resistor is connected with the second end of the sixth transmission line, the second end of the second chip resistor is connected with the second end of the seventh transmission line, the first end of the third chip resistor is connected with the second end of the eighth transmission line, and the second end of the third chip resistor is connected with the second end of the ninth transmission line.
6. The open stub odd power divider circuit as claimed in claim 5 for wifi application wherein the bottom signal input layer comprises a second dielectric substrate and a second feed circle;
the second feeding circle is arranged on the second dielectric substrate, and the second feeding circle and the first feeding circle are arranged on the same vertical line.
7. The open stub odd power divider circuit as claimed in claim 6, wherein the bottom signal input layer further comprises a tenth transmission line connecting the second feeding circle for inputting signals to the power divider.
8. The wifi applied open stub odd power divider circuit as claimed in claim 7, wherein the middle metal grounding layer includes a through hole, the through hole and the second feeding circle and the first feeding circle are located on the same vertical line.
9. The open stub odd power divider circuit for wifi as claimed in any one of claims 1-8 wherein the first, second, third and tenth transmission lines have the same characteristic impedance.
10. The open stub odd power divider circuit for wifi as claimed in any one of claims 1-8 wherein the folded shape and size of the first, second and third transmission lines are the same and the folded shape and size of the fourth to ninth transmission lines are the same.
11. An open stub odd power divider circuit as claimed in any one of claims 1 to 8 for wifi applications wherein the first, second and third chip resistors have the same resistance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847760.0A CN115173012A (en) | 2022-07-19 | 2022-07-19 | Open stub odd power divider circuit applied to wifi |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847760.0A CN115173012A (en) | 2022-07-19 | 2022-07-19 | Open stub odd power divider circuit applied to wifi |
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| CN115173012A true CN115173012A (en) | 2022-10-11 |
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|---|---|---|---|
| CN202210847760.0A Pending CN115173012A (en) | 2022-07-19 | 2022-07-19 | Open stub odd power divider circuit applied to wifi |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117497989A (en) * | 2024-01-03 | 2024-02-02 | 南京迈矽科微电子科技有限公司 | Power distributor and electronic equipment |
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2022
- 2022-07-19 CN CN202210847760.0A patent/CN115173012A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117497989A (en) * | 2024-01-03 | 2024-02-02 | 南京迈矽科微电子科技有限公司 | Power distributor and electronic equipment |
| CN117497989B (en) * | 2024-01-03 | 2024-03-08 | 南京迈矽科微电子科技有限公司 | Power distributor and electronic equipment |
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