CN110581337B - Multipath power equalizer - Google Patents
Multipath power equalizer Download PDFInfo
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- CN110581337B CN110581337B CN201910901696.8A CN201910901696A CN110581337B CN 110581337 B CN110581337 B CN 110581337B CN 201910901696 A CN201910901696 A CN 201910901696A CN 110581337 B CN110581337 B CN 110581337B
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- 238000009826 distribution Methods 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
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Abstract
The invention discloses a multipath power equalizer, which comprises a shell and a distribution plate arranged in the shell, wherein a first radio frequency input interface, a second radio frequency input interface, a first radio frequency output interface, a second radio frequency output interface and an antenna interface are arranged on the distribution plate, and a branch output coupler and a radio frequency power amplifier are arranged on the distribution plate; the first radio frequency input interface is connected with the first radio frequency output interface after being connected with at least three branch output couplers in series, the second radio frequency input interface is connected with the second radio frequency output interface after being connected with at least three branch output couplers in series, each branch output coupler is respectively connected with one radio frequency power amplifier in a one-to-one correspondence manner, and each radio frequency power amplifier is respectively connected with one antenna interface in a one-to-one correspondence manner. The multipath power equalizer combines transmission and proper power distribution, ensures that the power of the antenna array nodes is consistent, achieves uniformity of field intensity coverage, and simultaneously reserves an output interface for interconnection in advance.
Description
Technical Field
The invention relates to the technical field of couplers, in particular to a multipath power equalizer.
Background
At present, directional couplers are widely applied to small base station 5G indoor coverage distribution systems which are proposed by equipment manufacturers. The directional coupler mainly distributes power in a main path to branches according to the proportion of coupling degree and then transmits the power to an antenna, mainly solves the problem of single-path distribution, is limited in application, has the problems of difficult actual construction, upgrading and updating of a branched dendritic system, is high in price, and particularly cannot achieve symmetrical wiring of a multi-path radio frequency transmission line, and cannot guarantee the technical problems of amplitude balance transmission required by 2T2R/4T4R and amplitude consistency required by antenna nodes.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a multipath power equalizer, which combines transmission and proper power distribution, so that the power of the antenna array nodes is consistent. The phase and the amplitude of each path of antenna pattern of the large antenna array are basically consistent, the uniformity of field intensity coverage is achieved, and meanwhile, an output interface for interconnection is reserved in advance.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a multichannel power equalizer, includes the shell and sets up the distribution board in the shell, be equipped with first radio frequency input interface, second radio frequency input interface, first radio frequency output interface, second radio frequency output interface and antenna interface on the distribution board, be provided with branch output coupler and radio frequency power amplifier on the distribution board.
The first radio frequency input interface is connected with the first radio frequency output interface after being connected with at least three branch output couplers in series, the second radio frequency input interface is connected with the second radio frequency output interface after being connected with at least three branch output couplers in series, each branch output coupler is respectively connected with one radio frequency power amplifier in a one-to-one correspondence manner, and each radio frequency power amplifier is respectively connected with one antenna interface in a one-to-one correspondence manner.
In the structure, the radio frequency input is input from the first radio frequency input interface and the second radio frequency input interface, then the first radio frequency input interface is connected after three times of power distribution, the two paths of radio frequency input are connected with the antenna interfaces through at least three branch output couplers respectively, the power consistency of the plurality of antenna interfaces is ensured, and meanwhile, the first radio frequency output interface and the second radio frequency output interface are connected in series with the second multipath power equalizer through symmetrical multipath transmission lines, and the power distribution is continued.
The multipath power equalizer combines transmission and proper power distribution, so that the power of the antenna array nodes is consistent. The phase and the amplitude of each path of antenna pattern of the large antenna array are basically consistent, the uniformity of field intensity coverage is achieved, and meanwhile, an output interface for interconnection is reserved in advance.
Preferably, two distribution plates are arranged, and the two distribution plates are arranged in the shell in parallel and stacked mode.
The two distribution plates are arranged, namely the multipath power equalizer is provided with four radio frequency input interfaces, at least twelve antenna interfaces and four output interfaces, so that a larger amount of radio frequency inputs can be distributed at the same time, and the practicability of the multipath power equalizer is improved.
Preferably, the first radio frequency input interface and the second radio frequency input interface of the two distribution plates are arranged in the same direction, and the first radio frequency output interface and the second radio frequency output interface of the two distribution plates are arranged in the same direction.
The orientation of the radio frequency input interface and the orientation of the radio frequency output interface are respectively unified, so that connection in actual operation is facilitated.
Preferably, the distribution plate is quadrilateral, the first radio frequency input interface and the second radio frequency input interface are located on one side of the distribution plate, the first radio frequency output interface and the second radio frequency output interface are located on the opposite side of the distribution plate to the side where the first radio frequency input interface is connected, and the antenna interfaces are located on the other two sides of the distribution plate respectively.
The radio frequency input interface, the output interface and the antenna interface are respectively arranged on different edges of the distribution plate, so that connection is convenient in actual operation.
The beneficial effects are that:
1. The multipath power equalizer combines transmission and proper power distribution, so that the power of the antenna array nodes is consistent. The phase and the amplitude of each path of antenna pattern of the large antenna array are basically consistent, the uniformity of field intensity coverage is achieved, and an output interface for interconnection is reserved in advance;
2. The two distribution plates are arranged, namely the multipath power equalizer is provided with four radio frequency input interfaces, at least twelve antenna interfaces and four output interfaces, so that a larger amount of radio frequency inputs can be distributed at the same time, and the practicability of the multipath power equalizer is improved;
3. the directions of the radio frequency input interface and the radio frequency output interface are respectively unified, so that connection is convenient in actual operation;
4. The radio frequency input interface, the output interface and the antenna interface are respectively arranged on different edges of the distribution plate, so that connection is convenient in actual operation.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a distribution plate according to an embodiment of the present invention;
fig. 3 is a schematic diagram of signal flow according to an embodiment of the present invention.
Reference numerals:
10. A distribution plate; 110. a first radio frequency input interface; 111. a first radio frequency output interface; 112. a first antenna interface; 113. a second antenna interface; 114. a third antenna interface; 120. a second radio frequency input interface; 121. a second radio frequency output interface; 122. a fourth antenna interface; 123. a fifth antenna interface; 124. a sixth antenna interface; 130. a branch output coupler; 140. a radio frequency power amplifier; 20. a housing.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
examples:
As shown in fig. 1-3, a multipath power equalizer includes a housing 20 and a distribution board 10 disposed in the housing 20, wherein a first rf input interface 110, a second rf input interface 120, a first rf output interface 111, a second rf output interface 121 and six antenna interfaces, respectively, are disposed on the distribution board 10, and are a first antenna interface 112, a second antenna interface 113, a third antenna interface 114, a fourth antenna interface 122, a fifth antenna interface 123 and a sixth antenna interface 124, respectively, and six branch output couplers 130 and six rf power amplifiers 140 are disposed on the distribution board 10. The rf power amplifier 140 of the present invention is an rf power amplifier with a pass-through function.
The first rf input interface 110 is connected with the first rf output interface 111 after being connected with the three branch output couplers 130 in series, the second rf input interface 120 is connected with the second rf output interface 121 after being connected with the three branch output couplers 130 in series, each branch output coupler 130 is respectively connected with one rf power amplifier 140 in one-to-one correspondence, and each rf power amplifier 140 is respectively connected with one antenna interface in one-to-one correspondence.
In the above structure, the rf input is input from the first rf input interface 110 and the second rf input interface 120, and then is respectively connected to the first rf output interface 111 after three power distributions, and the two paths of rf input are respectively connected to the antenna interfaces through the three branch output couplers 130, so as to ensure that the powers of the multiple antenna interfaces are consistent, and meanwhile, the rf input can be interconnected through the first rf output interface 111 and the second rf output interface 121, so that the power distribution can be continued. In this embodiment, the first antenna interface 112, the second antenna interface 113 and the third antenna interface 114 may satisfy simultaneous or separate radio frequency inputs of three operators of China Mobile, china Unicom and China telecom, and the three operators may be arbitrarily connected to the three antenna interfaces for use. The practicability is stronger.
The multipath power equalizer combines transmission and proper power distribution, so that the power of the antenna array nodes is consistent. The phase and the amplitude of each path of antenna pattern of the large antenna array are basically consistent, the uniformity of field intensity coverage is achieved, and meanwhile, an output interface for interconnection is reserved in advance.
In one embodiment, as shown in fig. 1, two distribution plates 10 are provided, and two distribution plates 10 are disposed in parallel and stacked in the housing 20.
The two distribution plates 10 are arranged, namely the multipath power equalizer is provided with four radio frequency input interfaces, twelve antenna interfaces and four output interfaces, so that a larger amount of radio frequency inputs can be distributed at the same time, and the practicability of the multipath power equalizer is improved.
In one embodiment, as shown in fig. 1-3, the first rf input interface 110 and the second rf input interface 120 of the two distribution plates 10 are disposed in the same direction, and the first rf output interface 111 and the second rf output interface 121 of the two distribution plates 10 are disposed in the same direction.
The orientation of the radio frequency input interface and the orientation of the radio frequency output interface are respectively unified, so that connection in actual operation is facilitated.
In one embodiment, as shown in fig. 1 and 2, the distribution plate 10 is quadrilateral, the first rf input interface 110 and the second rf input interface 120 are located on one side of the distribution plate 10, the first rf output interface 111 and the second rf output interface 121 are located on the opposite side of the distribution plate 10 to which the first rf input interface 110 is connected, and the antenna interfaces are located on the other two sides of the distribution plate 10, respectively.
The radio frequency input interface, the output interface and the antenna interface are respectively arranged on different sides of the distribution plate 10, so that connection in actual operation is facilitated.
In one embodiment, the first rf input interface 110 is connected in series with six branch output couplers 130 and then connected to the first rf output interface 111, the second rf input interface 120 is connected in series with six branch output couplers 130 and then connected to the first rf output interface 111, and two paths of rf inputs respectively correspond to six antenna interfaces, so that two antenna accesses of each of three operators can be simultaneously satisfied, and six antenna accesses of one operator can also be independently satisfied.
When the number of the branch output couplers 130 is increased by an integer multiple of 3, the number of antenna interfaces corresponding to each path of radio frequency input is also increased by an integer multiple of 3, and the branch output couplers respectively correspond to three operators, so that the requirement of simultaneously providing radio frequency inputs with different modes and different frequency bands for the three operators can be just met.
In one embodiment, the first rf input interface 110 is connected in series with nine branch output couplers 130 and then connected to the first rf output interface 111, and the second rf input interface 120 is connected in series with nine branch output couplers 130 and then connected to the first rf output interface 111, where each path of rf input corresponds to nine antenna interfaces, so that three operators can access three antennas at the same time, and nine antennas of one operator can also be independently accessed.
When the number of the branch output couplers 130 is increased by an integer multiple of 3, the number of antenna interfaces corresponding to each path of radio frequency input is also increased by an integer multiple of 3, and the branch output couplers respectively correspond to three operators, so that the requirement of simultaneously providing radio frequency inputs with different modes and different frequency bands for the three operators can be just met.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (2)
1. The multipath power equalizer is characterized by comprising a shell and a distribution plate arranged in the shell, wherein a first radio frequency input interface, a second radio frequency input interface, a first radio frequency output interface, a second radio frequency output interface and an antenna interface are arranged on the distribution plate, and a branch output coupler and a radio frequency power amplifier are arranged on the distribution plate;
The first radio frequency input interface is connected with the first radio frequency output interface after being connected with at least three branch output couplers in series, the second radio frequency input interface is connected with the second radio frequency output interface after being connected with at least three branch output couplers in series, each branch output coupler is respectively connected with one radio frequency power amplifier in a one-to-one correspondence manner, and each radio frequency power amplifier is respectively connected with one antenna interface in a one-to-one correspondence manner;
The first radio frequency input interfaces and the second radio frequency input interfaces of the two distribution plates are arranged in the same direction, and the first radio frequency output interfaces and the second radio frequency output interfaces of the two distribution plates are arranged in the same direction;
The distribution plate is quadrilateral, the first radio frequency input interface and the second radio frequency input interface are positioned on one side of the distribution plate, the first radio frequency output interface and the second radio frequency output interface are positioned on the opposite sides of the distribution plate, which are connected with the first radio frequency input interface, of the distribution plate, and the antenna interfaces are respectively positioned on the other two sides of the distribution plate.
2. The multiple power equalizer of claim 1, wherein two of the distribution plates are disposed in parallel and stacked within the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901696.8A CN110581337B (en) | 2019-09-23 | 2019-09-23 | Multipath power equalizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901696.8A CN110581337B (en) | 2019-09-23 | 2019-09-23 | Multipath power equalizer |
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| Publication Number | Publication Date |
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| CN110581337A CN110581337A (en) | 2019-12-17 |
| CN110581337B true CN110581337B (en) | 2024-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910901696.8A Active CN110581337B (en) | 2019-09-23 | 2019-09-23 | Multipath power equalizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111740749B (en) * | 2020-05-15 | 2024-10-15 | 成都喜马拉雅电通网络有限公司 | Single-path power balance distribution device for dual-polarized antenna |
| CN112072252A (en) * | 2020-08-21 | 2020-12-11 | 内江喜马雅拉网络技术有限公司 | Multi-path power synthesizer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210224254U (en) * | 2019-09-23 | 2020-03-31 | 内江喜马雅拉网络技术有限公司 | Multi-path power equalizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9780976B2 (en) * | 2015-12-31 | 2017-10-03 | Infineon Technologies Ag | Passive equalizers for directional couplers |
| CN109361045B (en) * | 2018-11-01 | 2020-10-16 | 南京邮电大学 | A miniaturized broadband high-power coupler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210224254U (en) * | 2019-09-23 | 2020-03-31 | 内江喜马雅拉网络技术有限公司 | Multi-path power equalizer |
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