CN115458887B - High-performance multichannel same-frequency combiner and assembly method thereof - Google Patents

High-performance multichannel same-frequency combiner and assembly method thereof Download PDF

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Publication number
CN115458887B
CN115458887B CN202211063522.7A CN202211063522A CN115458887B CN 115458887 B CN115458887 B CN 115458887B CN 202211063522 A CN202211063522 A CN 202211063522A CN 115458887 B CN115458887 B CN 115458887B
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coupling piece
metal shell
input
coupling
output
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CN115458887A (en
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张武
刘中华
周祎
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Jiangsu Hengxin Technology Co Ltd
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Jiangsu Hengxin Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00Auxiliary devices
    • H01P1/20Frequency-selective devices, e.g. filters
    • H01P1/213Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
    • H01P11/007Manufacturing frequency-selective devices

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

The application provides a high-performance multichannel same-frequency combiner and an assembly method thereof, wherein the combiner comprises a metal shell, the metal shell forms a cavity with an upper opening, one side surface of the metal shell is provided with a plurality of input interfaces, and the other opposite side surface is provided with at least one output interface; the cavity is internally provided with at least one all-in-one coupling piece, the all-in-one coupling piece comprises a plurality of input branches and an output branch, each input branch is connected with one input interface, and each output branch is connected with one output interface; the all-in-one coupling piece is supported and fixed through the PTFE bracket. The signal same-frequency combination of a plurality of channels can be realized by arranging the all-in-one coupling piece and connecting with an input interface and an output interface on the metal shell. The PTFE support is arranged to fix the coupling piece, so that the structure is stable and reliable, and the combination installation of a plurality of same-frequency combiners can be realized rapidly.

Description

High-performance multichannel same-frequency combiner and assembly method thereof
Technical Field
The present application relates to wireless communication technologies, and in particular, to a high performance multichannel co-channel combiner and an assembling method thereof.
Background
With the development of 4G and 5G mobile communication technologies, miniaturization and integration are the development trend of communication devices. The combiner is a frequency selecting device for filtering transmission signals, is widely applied to equipment such as radio frequency and microwave receiving and transmitting components of a wireless base station and a radio frequency terminal, and is a mainstream scheme of a 4G and 5G antenna feed system by virtue of the advantages of small size and low cost. The multichannel same-frequency combiner is a novel same-frequency combiner, has a signal monitoring function in a plurality of channels, and can adjust the frequency under a corresponding working mode by changing the physical size. The coupling piece fixing structure of the existing common-frequency combiner is generally complex, such as the structures disclosed in patent numbers CN113394531a and CN104022325A, resulting in complex manufacturing process and assembly process and higher equipment cost.
Disclosure of Invention
The application aims to provide a high-performance multichannel same-frequency combiner and an assembly method thereof, which can realize signal input and output of a plurality of channels and simplify the assembly process.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
According to an aspect of the present application, there is provided a high-performance multichannel co-channel combiner, including a metal housing, the metal housing forming a cavity with an upper opening, one side of the metal housing being provided with a plurality of input interfaces, and the opposite other side being provided with at least one output interface;
the cavity is internally provided with at least one all-in-one coupling piece, the all-in-one coupling piece comprises a plurality of input branches and an output branch, each input branch is connected with one input interface, and each output branch is connected with one output interface;
the novel plastic coupling piece comprises a metal shell, and is characterized by further comprising a PTFE support, wherein a coupling hole is formed in the all-in-one coupling piece, the PTFE support penetrates through the coupling hole, one end of the PTFE support is arranged in a fixed blind hole in the metal shell, and a plastic clamping ring is sleeved at the other end of the PTFE support.
In an embodiment, a filtering coupling piece is further disposed in the cavity, the filtering coupling piece is disposed on a side surface of the all-in-one coupling piece, one end of the filtering coupling piece is connected with a resistor, and the other end of the filter is connected with one output interface.
In one embodiment, the impedance of the filter coupling piece is 45 ohms to 55 ohms.
In one embodiment, the filter coupling piece is provided with a tuning screw.
In one embodiment, the all-in-one coupling piece is fixed at the middle position in the height direction in the cavity.
In one embodiment, the ends of the all-in-one coupling piece are configured in a notch shape for welding with connectors within the input interface and the output interface.
In one embodiment, the upper opening cover of the metal shell is provided with a metal cover plate.
In an embodiment, two four-in-one coupling pieces are arranged in the cavity, each four-in-one coupling piece comprises four input ends and one output end, the two four-in-one coupling pieces are symmetrically arranged, and the filtering coupling piece is arranged between the two four-in-one coupling pieces.
According to another aspect of the present application, there is provided an assembling method of a high performance multi-channel co-channel combiner, comprising the steps of:
penetrating the PTFE support into a coupling hole on the all-in-one coupling piece, and sleeving a plastic clamping ring at the upper end of the PTFE support;
placing the assembled all-in-one coupling piece into the metal shell, and fixing the lower end of the PTFE support into a blind hole on the metal shell;
the input end of the all-in-one coupling piece is welded with the input interface on the metal shell, and the output end of the all-in-one coupling piece is welded with the output interface on the metal shell.
The embodiment of the application has the beneficial effects that: the signal same-frequency combination of a plurality of channels can be realized by arranging the all-in-one coupling piece and connecting with an input interface and an output interface on the metal shell. The PTFE support is arranged to fix the coupling piece, so that the structure is stable and reliable, a plurality of same-frequency combiners can be quickly assembled and installed, and the speed of assembly personnel on the same-frequency combiners can be effectively improved. The requirement on assembly personnel is lower, so that the stability of equipment signal transmission is effectively ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
The above features and advantages of the present application will be better understood after reading the detailed description of embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily to scale and components having similar related features or characteristics may have the same or similar reference numerals.
FIG. 1 is an overall schematic top view of an embodiment of the present application;
FIG. 2 is a schematic overall perspective view of an embodiment of the present application;
FIG. 3 is a schematic diagram of an embodiment of an all-in-one coupling piece structure;
FIG. 4 is a schematic view of the structure of a PTFE holder and a plastic snap ring in an embodiment of the present application;
FIG. 5 is a schematic view of a metal housing in an embodiment of the application;
FIG. 6 is a schematic diagram of a filter coupling slice according to an embodiment of the present application;
wherein: 1-a metal housing; 11-blind holes; 2-an input interface; 3-an output interface; 4-all-in-one coupling sheet; 41-input branch; 42-output branch; 43-coupling holes; a 5-PTFE scaffold; 6-a plastic clasp; 7-a filter coupling piece; 71-an output; 72-connecting end; 8-resistors.
Detailed Description
The application is described in detail below with reference to the drawings and the specific embodiments. It is noted that the aspects described below in connection with the drawings and the specific embodiments are merely exemplary and should not be construed as limiting the scope of the application in any way.
As shown in fig. 1 to 6, the embodiment of the application provides a high-performance multichannel same-frequency combiner, which comprises a metal shell 1, wherein the metal shell 1 can be machined or die-cast by metal aluminum materials to form a semi-closed structure with front, rear, left, right and lower five surfaces connected to form a cavity with an upper opening. The upper opening of the metal casing 1 may be covered with a metal cover plate for better electromagnetic shielding. A plurality of input interfaces 2 are provided on one side of the metal housing 1 and at least one output interface 3 is provided on the opposite side.
At least one all-in-one coupling piece 4 is arranged in the cavity, and the all-in-one coupling piece 4 comprises a plurality of input branches 41 and an output branch 42, wherein each input branch 41 is connected with one input interface 2, and each output branch 42 is connected with one output interface 3.
The high-performance multichannel same-frequency combiner further comprises a PTFE (polytetrafluoroethylene) support 5, a coupling hole 43 is formed in the all-in-one coupling piece 4, the PTFE support 5 penetrates through the coupling hole 43, one end of the PTFE support 5 is arranged in a blind hole 11 in the metal shell 1, a plastic clamping ring 6 is sleeved at the other end of the PTFE support 5, so that the all-in-one coupling piece 4 is supported and fixed, and the structure of the PTFE support 5 and the plastic clamping ring 6 is shown in fig. 4.
In a possible embodiment, a filter coupling piece 7 is further disposed in the cavity, the filter coupling piece 7 is disposed on a side surface of the all-in-one coupling piece 4, an output end 72 of the filter coupling piece 7 is connected with a resistor 8, and an input end 71 of the filter coupling piece 7 is connected with one output interface 2. The filter coupling piece 7 can also be supported and fixed by adopting the PTFE support 5 and the plastic clamping ring 6.
The impedance of the filter coupling sheet 7 is 45-55 ohms. In this embodiment, 50 ohms is set to play a good role in isolating electrical properties.
In the present embodiment, the all-in-one coupling piece 4 is fixed at the middle position in the height direction in the cavity, and the end of the all-in-one coupling piece 4 is provided in a notch shape for welding with the connectors in the input interface 2 and the output interface 3. The same-frequency combiner can be realized by adjusting the interval positions and the arrangement modes of the all-in-one coupling sheets 4 and the filtering coupling sheets 7, and the same-frequency combiner can be adjusted by adjusting the length, the width, the thickness, the bending angle and the like of the coupling sheets so as to meet performance indexes. In addition, a tuning screw can be added on the filtering coupling piece 7 to play a role of loading capacitance, so that index requirements of product frequency, echo and the like can be adjusted.
The number of channels is not limited in the present application, and may be, for example, 4-channel input/output, 8-channel input/output, or the like. In this embodiment, two four-in-one coupling pieces are combined to form an 8-channel, each four-in-one coupling piece comprises four input ends and one output end, the two four-in-one coupling pieces are symmetrically arranged, and the filtering coupling piece 7 is arranged between the two four-in-one coupling pieces.
Based on the high-performance multichannel same-frequency combiner, the application also provides an assembly method of the high-performance multichannel same-frequency combiner, which comprises the following steps:
penetrating the PTFE support into a coupling hole on the all-in-one coupling piece, and sleeving a plastic clamping ring at the upper end of the PTFE support;
placing the assembled all-in-one coupling piece into the metal shell, and fixing the lower end of the PTFE support into a blind hole on the metal shell;
the input end of the all-in-one coupling piece is welded with the input interface on the metal shell, and the output end of the all-in-one coupling piece is welded with the output interface on the metal shell.
In summary, the present application provides a high performance multi-channel co-channel combiner and an assembling method thereof, which can realize the co-channel combining of signals of multiple channels by arranging an all-in-one coupling piece and connecting with an input interface and an output interface on a metal housing. The PTFE support is arranged to fix the coupling piece, so that the structure is stable and reliable, a plurality of same-frequency combiners can be quickly assembled and installed, and the speed of assembly personnel on the same-frequency combiners can be effectively improved. The requirement on assembly personnel is lower, so that the stability of equipment signal transmission is effectively ensured.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description is only of preferred embodiments of the application and is not intended to limit the application to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the application.

Claims (1)

1. The high-performance multichannel same-frequency combiner comprises a metal shell, wherein the metal shell forms a cavity with an upper opening, one side surface of the metal shell is provided with a plurality of input interfaces, and the other opposite side surface is provided with at least one output interface; the cavity is internally provided with at least one all-in-one coupling piece, the all-in-one coupling piece comprises a plurality of input branches and an output branch, each input branch is connected with one input interface, and each output branch is connected with one output interface; the PTFE support is provided with a coupling hole, the PTFE support penetrates through the coupling hole, one end of the PTFE support is arranged in a blind hole in the metal shell, and the other end of the PTFE support is sleeved with a plastic clamping ring; the method is characterized by comprising the following steps:
penetrating the PTFE support into a coupling hole on the all-in-one coupling piece, and sleeving a plastic clamping ring at the upper end of the PTFE support;
placing the assembled all-in-one coupling piece into the metal shell, and fixing the lower end of the PTFE support into a blind hole on the metal shell;
the input end of the all-in-one coupling piece is welded with the input interface on the metal shell, and the output end of the all-in-one coupling piece is welded with the output interface on the metal shell.
CN202211063522.7A 2022-08-31 2022-08-31 High-performance multichannel same-frequency combiner and assembly method thereof Active CN115458887B (en)

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CN115458887B true CN115458887B (en) 2023-11-17

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103700915A (en) * 2013-12-19 2014-04-02 武汉虹信通信技术有限责任公司 Four-input and four-output electric bridge
CN207426101U (en) * 2017-11-22 2018-05-29 福州同创微波通讯技术有限公司 A kind of same frequency combiner
CN108598651A (en) * 2017-05-25 2018-09-28 东莞质研工业设计服务有限公司 Same frequency combiner with framed band
CN111786060A (en) * 2020-07-22 2020-10-16 江苏亨鑫科技有限公司 Filtering branch module, manufacturing process thereof, combiner, power divider and antenna
CN113224496A (en) * 2021-06-03 2021-08-06 苏州波发特电子科技有限公司 Cross coupling structure of filter
CN113394531A (en) * 2021-06-29 2021-09-14 江苏贝孚德通讯科技股份有限公司 Same-frequency combiner compatible with 5G frequency band
CN114824709A (en) * 2022-04-28 2022-07-29 广州宸伟网络科技有限公司 Combiner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9923256B2 (en) * 2015-02-27 2018-03-20 Viasat, Inc. Ridge loaded waveguide combiner/divider

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103700915A (en) * 2013-12-19 2014-04-02 武汉虹信通信技术有限责任公司 Four-input and four-output electric bridge
CN108598651A (en) * 2017-05-25 2018-09-28 东莞质研工业设计服务有限公司 Same frequency combiner with framed band
CN207426101U (en) * 2017-11-22 2018-05-29 福州同创微波通讯技术有限公司 A kind of same frequency combiner
CN111786060A (en) * 2020-07-22 2020-10-16 江苏亨鑫科技有限公司 Filtering branch module, manufacturing process thereof, combiner, power divider and antenna
CN113224496A (en) * 2021-06-03 2021-08-06 苏州波发特电子科技有限公司 Cross coupling structure of filter
CN113394531A (en) * 2021-06-29 2021-09-14 江苏贝孚德通讯科技股份有限公司 Same-frequency combiner compatible with 5G frequency band
CN114824709A (en) * 2022-04-28 2022-07-29 广州宸伟网络科技有限公司 Combiner

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