WO2016191988A1 - 一种线缆及使用该线缆的高频器件 - Google Patents

一种线缆及使用该线缆的高频器件 Download PDF

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Publication number
WO2016191988A1
WO2016191988A1 PCT/CN2015/080418 CN2015080418W WO2016191988A1 WO 2016191988 A1 WO2016191988 A1 WO 2016191988A1 CN 2015080418 W CN2015080418 W CN 2015080418W WO 2016191988 A1 WO2016191988 A1 WO 2016191988A1
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WO
WIPO (PCT)
Prior art keywords
coaxial
coupling
outer conductor
line
cable
Prior art date
Application number
PCT/CN2015/080418
Other languages
English (en)
French (fr)
Inventor
廖志强
肖伟宏
卢麒屹
许茁桢
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/080418 priority Critical patent/WO2016191988A1/zh
Priority to CN201580044364.2A priority patent/CN106575809A/zh
Priority to EP15893651.8A priority patent/EP3297092B1/en
Publication of WO2016191988A1 publication Critical patent/WO2016191988A1/zh
Priority to US15/824,895 priority patent/US10505251B2/en

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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
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/085—Coaxial-line/strip-line transitions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/184—Strip line phase-shifters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/085—Triplate lines
    • H01P3/087—Suspended triplate lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/088—Stacked transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
    • H01P5/026—Transitions between lines of the same kind and shape, but with different dimensions between coaxial lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
    • H01P5/028—Transitions between lines of the same kind and shape, but with different dimensions between strip lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/06—Riveted connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables

Definitions

  • the present invention relates to the field of communications, and in particular, to a cable and a high frequency device using the cable.
  • the cables for signal transmission inside the base station antenna are formed based on the combined interconnection between the strip line, the microstrip line and the coaxial line.
  • the basic composition of the strip line includes, in order from the outside to the inside, a strip line outer conductor (ie, a strip line ground layer), a strip line signal cavity, and a strip line inner conductor;
  • the basic composition of the coaxial line is from the outside to the outside
  • the order includes: a coaxial outer conductor (ie, a coaxial ground layer), an insulating medium, and a coaxial inner conductor.
  • connection of the strip line to the coaxial line is in the form of a solder or a screw connection.
  • a strip line and a coaxial line are connected in such a manner that the outer conductor of the coaxial line is first soldered to a ground block, and the ground block and the strip outer conductor are connected by screws; another strip line
  • the connection form with the coaxial line is: the outer conductor of the coaxial line is directly welded to the outer conductor of the strip line.
  • the coaxial line is connected to the strip line outer conductor by soldering or screw connection. Since metal contact and soldering are both causes of passive intermodulation interference, when the base station antenna uses the existing connection mode of stripline and coaxial line, it is easy to generate large passive intermodulation interference, thereby Affect the communication quality of the communication system.
  • passive intermodulation refers to the intermodulation effect caused by the nonlinearity of the components themselves under the condition of high power signals of multiple carrier frequencies.
  • Embodiments of the present invention provide a cable and a high frequency device using the same, which can reduce passive intermodulation interference generated inside the cable and improve communication quality of the communication system.
  • an embodiment of the present invention provides a cable, including: a strip line and a coaxial line, the strip line includes a strip line outer conductor, a strip line signal cavity, and a strip line in order from the outside to the inside.
  • An inner conductor comprising, in order from the outside to the inside, a coaxial outer conductor, a first insulating medium and a coaxial inner conductor, wherein the cable further comprises a coupling ground layer, and the coupling ground layer is disposed a coupling hole section penetrating the coupling formation, the coaxial line being disposed in the coupling hole section, the coaxial outer conductor being coupled to the coupling formation, the strip line outer conductor and the The coupling formation is connected, and the strip inner conductor is connected to the coaxial inner conductor.
  • the cable further includes: a second insulating medium, the second insulating medium is disposed on the coaxial outer conductor and the coupling Between the strata.
  • the strip-shaped outer conductor and the coupling formation are an integral metal piece.
  • the outer conductor is a cylinder
  • the coupling hole segment is a cylindrical hole segment.
  • the coupling hole section extends through an axis of the coupling formation.
  • the line signal cavity and the coupled ground plane are arranged in parallel.
  • the line signal cavity forms an angle with the coupled formation.
  • the stripline inner conductor is coupled to the inner conductor of the coaxial line.
  • an embodiment of the present invention provides a high frequency device, including any one of the cables according to the first aspect.
  • Embodiments of the present invention provide a cable and a high frequency device using the cable, including: a strip line and a coaxial line, and the strip line includes a strip line outer conductor and a strip line signal from the outside to the inside. a cavity and a stripline inner conductor, the coaxial line includes a coaxial outer conductor, a first insulating medium and a coaxial inner conductor in order from the outside to the inside, the cable further comprising: a coupling ground layer provided with a coupling hole section, the same The axis is disposed in the coupling hole segment, and the coaxial outer conductor is coupled to the coupling formation, the strip outer conductor is connected to the coupling ground, and the strip inner conductor is connected to the coaxial inner conductor.
  • the passive intermodulation interference caused by the soldering or screw connection between the outer conductor of the coaxial line and the outer conductor of the strip line is reduced, and the communication quality of the communication system is improved.
  • FIG. 1 is a schematic structural diagram 1 of a cable according to an embodiment of the present disclosure
  • FIG. 2 is an exploded view of a cable according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram 2 of a cable according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram 3 of a cable according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram 4 of a cable according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram 5 of a cable according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram 1 of a phase shifter according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram 2 of a phase shifter according to an embodiment of the present invention.
  • An embodiment of the present invention provides a cable, as shown in FIG. 1, comprising: a strip line 10, a coaxial line 20, and a coupling formation 30.
  • the coaxial line 20 is disposed in the coupling formation 30, and the strip-shaped outer conductor of the strip line 10 is connected to the coupling formation 30, and the coaxial outer conductor of the coaxial line 20 is also connected to the coupling formation 30, thereby forming a strip line.
  • an exploded view of a cable provided in FIG. 1 of the present invention includes: a strip line and a coaxial line, and a coupling ground layer for realizing connection of the strip line and the coaxial line.
  • the constituent structure of the strip line is a strip line outer conductor 100 from the outside to the inside, and the strip line signal cavity 101 (where the strip line signal cavity 101 includes: the signal cavity 101a and the signal cavity 101b) and the strip line
  • the inner conductor 102 specifically, the strip-shaped inner conductor 102 is attached to the strip line signal line to support a printed circuit board (PCB), the PCB is disposed in the strip line signal cavity, and is attached to the strip
  • PCB printed circuit board
  • the strip line has a plurality of strip line signal cavities
  • a PCB is disposed in each strip line signal cavity, and a strip line inner conductor is attached to the PBC.
  • the PCB board is cut out and drawn outside the strip line signal cavity.
  • the stripline signal cavity 101 herein may also include only one signal cavity.
  • the constituent structure of the coaxial line 20 is, in order from the outside to the inside, a coaxial outer conductor 200, a first insulating medium 201, and a coaxial inner conductor 202.
  • a coupling formation 30 is also provided, in which the coupling hole 30 of the coupling formation 30 is disposed.
  • the coaxial line 20 is disposed in the coupling hole 300 of the coupling formation 30.
  • the coaxial line 20 is horizontally disposed in the coupling hole 30 and outside the coaxial line.
  • the conductor 200 is coupled to the coupling formation 30, and the stripline outer conductor 100 is coupled to the coupling formation 30. That is, the coaxial outer conductor 200 is electrically connected to the stripline outer conductor 100 through the coupling formation 30, specifically, coaxial.
  • Line 20 runs through the coupled formation 30.
  • the coaxial inner conductor 202 is also electrically connected to the strip-shaped new inner conductor 102 on the PCB in the strip line signal cavity 101, so that the strip line 10 and the coaxial line 20 are integrally electrically connected to realize signal transmission.
  • the coupling connection between the coaxial outer conductor 100 and the coupling formation 30 needs to meet the requirement that the high frequency signal is sufficiently grounded.
  • connection between the stripline outer conductor 100 and the coupling formation 30 may be various direct connections between metals, such as soldering or screwing.
  • connection between the inner conductor of the strip line and the inner conductor of the coaxial line may also be various direct connections between the metals, such as soldering or screwing.
  • the stripline outer conductor 100 and the coupling ground layer 30 are an integral metal piece.
  • the coupling connection between the strip-shaped outer conductor 100 and the coaxial outer conductor 200 can be realized, thereby reducing the strip line in the prior art.
  • the passive intermodulation interference caused by metal contact and soldering between the strip outer conductor and the outer conductor of the coaxial line improves the quality of the communication system.
  • FIG. 3 is a cross-section of the coupling ground 30 and the coaxial line 20 disposed in the coupling hole 300 of the coupling formation 30 in the cable shown in FIG. 1 according to an embodiment of the present invention.
  • the cable provided by the embodiment of the present invention further includes a second insulating medium 40 disposed in the coupling formation 30, specifically disposed between the coaxial outer conductor 200 and the coupling hole 300.
  • the coupling hole segment 300 is a cylindrical hole segment, so that a 360 can be formed between the coaxial outer conductor 200 and the coupling formation 30.
  • the degree of coupling connection ensures a good coupling effect between the coaxial outer conductor 200 and the coupling formation 30.
  • the coupling hole section 300 penetrates the axial center of the coupling formation 30, so that the coaxial line 20 is coupled with the coupling formation 30 through the coupling hole section 300 to form a uniform electric field of 360 degrees, which has a good coupling effect. .
  • stripline signal cavity 101 and the coupled ground layer 30 can be arranged in parallel. Cloth can also be arranged at an angle (as shown in Figure 4). Wherein, when the strip line signal cavity 101 is arranged in parallel with the coupling ground layer 30, the space inside the antenna can be saved; when the strip line signal cavity 101 and the coupling ground layer 30 are arranged at an angle, the manufacturing process can be simplified.
  • the outer coaxial conductor of the embodiment of the present invention may be a coaxial outer conductor of the coaxial line, as shown in FIG. 5A (ie, the shaded portion);
  • the outer conductor of the coaxial cable is two parts.
  • a cable provided by an embodiment of the present invention includes: a strip line and a coaxial line, the coaxial line includes a coaxial outer conductor, the strip line includes a strip line outer conductor, and the cable further includes: a coupling hole is disposed The coupled formation of the segment, the coaxial line is disposed in the coupling hole section, and the outer conductor of the coaxial line is coupled with the coupling formation, the outer conductor of the strip line is connected with the coupling ground layer, and the inner conductor of the strip line is connected with the inner conductor of the coaxial line.
  • the invention can reduce the passive intermodulation interference generated by the coaxial line in the prior art by soldering with the ground block, and improve the quality of the communication system.
  • FIG. 6 shows a cable according to another embodiment of the present invention.
  • the cable includes a strip line 10 and a coaxial line 20.
  • the strip line 10 includes a strip line outer conductor 100.
  • the embodiment is divided into upper and lower ground) and the stripline signal cavity 101, the stripline inner conductor 102, the coaxial outer conductor 200, the first insulating medium 201, and the coaxial inner conductor as shown in FIGS. 1-5. 202, a second insulating medium 40, coupled to the formation 30.
  • the coupling ground layer 30 is coupled to the coaxial outer conductor 200 by approximately 360 degrees, and the coupling ground layer 30 is connected to the stripline ground layer (ie, the stripline outer conductor 100).
  • the coaxial inner conductor 202 and the strip inner conductor 102 are connected. connection.
  • the coupling formation 30 and the strip-shaped outer conductor 100 exist independently, and then the strip lines are up and down by screws (as shown by a and b in FIG. 6). (ie, stripline outer conductor 100) is coupled to coupling formation 30.
  • the coupling ground layer 30 is physically separated from the strip line 10, and is connected by screws to reduce part of the passive intermodulation interference. Compared with the prior art, the welding of the outer conductor of the coaxial line and the grounding block is reduced. . There is a layer of insulating medium between the coaxial outer conductor and the coupling ground 30, so that the source of the passive intermodulation interference can be avoided from the design. (ie direct contact between metals).
  • a cable provided by an embodiment of the present invention includes: a strip line and a coaxial line, the coaxial line includes a coaxial outer conductor, the strip line includes a strip line outer conductor, and the cable further includes: a coupling hole is disposed The coupled formation of the segment, the coaxial line is disposed in the coupling hole section, and the outer conductor of the coaxial line is coupled with the coupling formation, the outer conductor of the strip line is connected with the coupling ground layer, and the inner conductor of the strip line is connected with the inner conductor of the coaxial line.
  • the invention can reduce the passive intermodulation interference generated by the coaxial line in the prior art by soldering with the ground block, and improve the quality of the communication system.
  • Embodiments of the present invention provide a phase shifter device.
  • the phase shifter device includes a strip line 10, a coaxial line 20, and a coupling formation 30.
  • the coupling ground layer 30 is coupled to the coaxial outer conductor by approximately 360 degrees, the coupling ground layer 30 is connected to the strip line ground layer, and the coaxial inner conductor is connected to the strip line inner conductor.
  • the coupling ground layer is integrated with the strip line outer conductor, that is, the coupling ground layer and the strip line outer conductor are a metal piece, or may be plastic plating.
  • the post-formed high-frequency signal can be used as a metal member, and the strip-line signal cavity and the coupling hole segment are integrally extruded by a special process.
  • the phase shifter device provided by the embodiment of the present invention is applied to a base station antenna system.
  • the base station antenna is usually a dual-polarization design, and a phase shifter is required for each polarization, and the phase shifter of the base station antenna is formed.
  • the phase shifter device is arranged in a strip line and a common ground layer to reduce the space occupied by the two phase shifters, and the coupling hole section and the strip shape
  • the line signal cavities are arranged in parallel to further reduce the size of the phase shifter.
  • the internal design of the phase shifter can be a phase shifter in which the medium slides to change the phase, or a phase shifter that changes the physical length of the circuit.
  • the second form is adopted, that is, by pulling the sliding PCB, a relative physical length change is generated between the fixed PCB and the fixed PCB to realize phase shifting.
  • the principle of the phase shifter will not be elaborated here.
  • the phase shifter provided by the embodiment of the present invention is a lumped phase shifter (as shown in FIG. 7), and the phase shifter includes 6 coaxial lines, and the 6 coaxial lines are sequentially Provided in six coupling formations 30 (a), 30 (b), 30 (c), 30 (d), 30 (e), 30 (f), the six coaxial lines and strip lines 10 can be used As shown in Figure 1 - Figure 6 A connection is made, the signal is coupled through a coaxial line disposed in the coupling formation 30(d), and then disposed in the coupling formation 30(a), 30(b), 30(c), 30(e) Coaxial line-coupled output in 30(f).
  • FIG. 8 shows another phase shifter device according to an embodiment of the present invention.
  • the phase shifter device includes: a strip line 10, a coaxial line 20, a second insulating medium, and a coupling ground layer 30.
  • the coupling ground layer 30 is coupled to the coaxial outer conductor by approximately 360 degrees, the coupled ground layer is connected to the strip line ground layer, and the coaxial inner conductor is connected to the strip line inner conductor.
  • the coupling ground layer is integrated with the strip line outer conductor, that is, the coupling ground layer and the strip line outer conductor are a metal piece, or may be plastic plating.
  • the post-formed high-frequency signal can be used as a metal member, and the strip-line signal cavity and the coupling hole segment are integrally extruded by a special process.
  • the phase shifter device adopts a strip line and a lower layer to share a ground layer to reduce the space occupied by the two phase shifters, and the coupling hole segment and the strip line signal cavity are vertical (ie, Arranged at an angle of 90 degrees, which simplifies the assembly complexity of the strip line and the coaxial line, making it easy to assemble.
  • phase shifting device provided by the embodiment of the present invention is a 1-in and 9-out phase shifter.
  • the phase shifter includes a PCB circuit and a medium that can slide along the moving direction of the medium; the medium is moved along the indicated moving direction, and the electrical length from the input port to each output port is adjusted as needed, and the output port is via the coaxial line.
  • the radiation unit is connected to the radiation unit of the array antenna, so that the high frequency signal of the input port is coupled to the coaxial line via the strip line, and then radiated to the radiation unit to form electromagnetic wave radiation for spatial wireless transmission.
  • the coupling hole segment and the strip line signal cavity are not arranged in parallel, but are arranged at an angle. Specifically, the coupling hole segment and the strip line signal cavity are at an angle of 90 degrees. This makes the phase shifter easy to assemble.
  • the phase shifter provided by the embodiment of the present invention uses any one of the cables described in the above embodiments to reduce the soldering between the outer conductor of the coaxial line and the outer conductor of the strip line compared with the existing phase shifter. Or the passive intermodulation interference generated by the screw connection improves the communication system. The quality of communication.
  • the cable provided by the embodiment of the present invention can be applied not only to the phase shifter device but also to other high frequency devices, such as filters.
  • the invention is not limited thereto.

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Abstract

一种线缆及使用该线缆的高频器件，涉及通信领域，能够减小线缆内部产生的无源互调干扰，提高通信系统的通信质量。一种线缆，包括：带状线(10)和同轴线(20)，带状线(10)从外到内依次包括带状线外导体(100)、带状线信号腔(101)和带状线内导体(102)，所述同轴线(20)从外到内依次包括同轴线外导体(200)、第一绝缘介质(201)和同轴线内导体(202)，线缆还包括：设置有耦合孔段(300)的耦合地层(30)，同轴线(20)设置于耦合孔段(300)内，且同轴线外导体(200)与耦合地层(30)耦合连接，带状线外导体(100)与耦合地层(30)连接，带状线内导体(102)与同轴线内导体(202)连接。

Description

一种线缆及使用该线缆的高频器件 技术领域
本发明涉及通信领域，尤其涉及一种线缆及使用该线缆的高频器件。
背景技术
在现有基站天线的设计工艺中，基站天线内部信号传输的线缆都是基于带状线、微带线和同轴线之间进行组合互联形成的。其中，带状线的基本组成由外到内依次包括：带状线外导体(即带状线接地层)，带状线信号腔，带状线内导体；同轴线的基本组成由外到内依次包括：同轴线外导体(即同轴线接地层)，绝缘介质，同轴线内导体。
目前，带状线与同轴线的连接形式为焊接或者螺钉连接。具体的，一种带状线与同轴线的连接形式为：同轴线的外导体先和一个接地块焊接，接地块和带状线外导体通过螺钉连接；另一种带状线与同轴线的连接形式为：同轴线外导体直接和带状线外导体进行焊接。
以上带状线与同轴线的两种连接方式中，同轴线是通过焊接或者螺钉连接的方式与带状线外导体实现连接的。由于金属接触和焊接都是产生无源互调干扰的原因，因此，当基站天线采用现有的带状线与同轴线的连接形式工作时，容易产生较大的无源互调干扰，从而影响通信系统的通信质量。其中，无源互调是指无源器件工作在多个载频的大功率信号条件下由于部件本身的非线性而引起的互调效应。
发明内容
本发明的实施例提供一种线缆及使用该线缆的高频器件，能够减小线缆内部产生的无源互调干扰，提高通信系统的通信质量。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，本发明实施例提供一种线缆，包括：带状线和同轴线，所述带状线从外到内依次包括带状线外导体、带状线信号腔和带状线内导体，所述同轴线从外到内依次包括同轴线外导体、第一绝缘介质和同轴线内导体，其特征在于，所述线缆还包括耦合地层，所述耦合地层内设置有贯穿所述耦合地层的耦合孔段，所述同轴线设置于所述耦合孔段内，所述同轴线外导体与所述耦合地层耦合连接，所述带状线外导体与所述耦合地层连接，所述带状线内导体与所述同轴线内导体连接。
结合第一方面，在第一方面的第一种可能的实现方式中，所述线缆还包括：第二绝缘介质，所述第二绝缘介质设置于所述同轴线外导体与所述耦合地层之间。
结合第一方面，或者第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述带状线外导体与所述耦合地层为一体金属件。
结合第一方面，或者第一方面的第一种可能的实现方式，或者第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述同轴线外导体为圆柱体，且所述耦合孔段为圆柱体孔段。
结合第一方面，或者第一方面的第一种可能的实现方式至第一方面的第三种可能的实现方式中的任意一种，在第一方面的第四种可能的实现方式中，
所述耦合孔段贯穿所述耦合地层的轴心。
结合第一方面，或者第一方面的第一种可能的实现方式至第一方面的第四种可能的实现方式中的任意一种，在第一方面的第五种可能的实现方式中，带状线信号腔和所述耦合地层平行排布。
结合第一方面，或者第一方面的第一种可能的实现方式至第一方面的第四种可能的实现方式中的任意一种，在第一方面的第六种可能的实现方式中，带状线信号腔和所述耦合地层形成夹角。
结合第一方面，或者第一方面的第一种可能的实现方式至第一 方面的第六种可能的实现方式中的任意一种，在第一方面的第七种可能的实现方式中，带状线内导体与同轴线内导体耦合连接。
第二方面，本发明实施例提供一种高频器件，包括如第一方面所述的任意一种线缆。
本发明实施例提供一种线缆及使用该线缆的高频器件，包括：包括：带状线和同轴线，带状线从外到内依次包括带状线外导体、带状线信号腔和带状线内导体，同轴线从外到内依次包括同轴线外导体、第一绝缘介质和同轴线内导体，该线缆还包括：设置有耦合孔段的耦合地层，同轴线设置于耦合孔段内，且同轴线外导体与耦合地层耦合连接，带状线外导体与耦合地层连接，带状线内导体与同轴线内导体连接。与现有技术相比，减小了由于同轴线外导体与带状线外导体之间焊接或者螺钉连接所产生的无源互调干扰，提高了通信系统的通信质量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种线缆的结构示意图一；
图2为本发明实施例提供的一种线缆的分解图；
图3为本发明实施例提供的一种线缆的结构示意图二；
图4为本发明实施例提供的一种线缆的结构示意图三；
图5为本发明实施例提供的一种线缆的结构示意图四；
图6为本发明实施例提供的一种线缆的结构示意图五；
图7为本发明实施例提供的一种移相器的结构示意图一；
图8为本发明实施例提供的一种移相器的结构示意图二。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明 一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种线缆，如图1所示，包括：带状线10、同轴线20和耦合地层30。其中，同轴线20设置于耦合地层30内，带状线10的带状线外导体与耦合地层30连接，同轴线20的同轴线外导体与耦合地层30也连接，从而带状线外导体与同轴线外导体之间通过耦合地层30存在电连接，并且带状线内导体与同轴线内导体之间在该线缆内部也存在电连接，使得该线缆可以正常传输信号。
具体的，如图2所示，为本发明图1提供的一种线缆的分解图，包括：带状线和同轴线以及实现带状线与同轴线的连接的耦合地层。其中，带状线的组成结构由外到内依次为带状线外导体100，带状线信号腔101(此处带状线信号腔101包括：信号腔101a和信号腔101b)和带状线内导体102，具体的，带状线内导体102附着在带状线信号线支撑印制电路板(printed circuit board，PCB)上，该PCB设置于带状线信号腔内，且附着在带状线外导体100的内侧，需要补充的是，如果带状线有多个带状线信号腔，则每一个带状线信号腔内都设置有PCB，且该PBC上附着有带状线内导体。为展示方便，本发明实施例在图2中，将PCB板剖出来，画在了带状线信号腔的外面。可选的，此处的带状线信号腔101也可以只包括一个信号腔。同轴线20的组成结构由外到内依次为同轴线外导体200，第一绝缘介质201，同轴线内导体202。
进一步的，在图2所示的该线缆的分解图中还包括耦合地层30，耦合地层30中设置有贯穿耦合地层30的耦合孔段300。在本发明实施例提供的完整的线缆中，同轴线20设置于耦合地层30的耦合孔段300内，具体的，同轴线20水平设置于耦合孔段30内，并且同轴线外导体200与耦合地层30之间耦合连接，带状线外导体100与耦合地层30连接，即同轴线外导体200通过耦合地层30与带状线外导体100形成电连接，具体的，同轴线20贯穿所述耦合地层 30，同轴线内导体202与带状线信号腔101内PCB上的带状新内导体102也形成电连接，从而带状线10和同轴线20整体形成电连接，实现信号的传输。
需要说明的是，同轴线外导体100与耦合地层30之间的耦合连接需要满足高频信号充分接地的需求。
可选的，带状线外导体100与耦合地层30之间的连接，可以是金属之间的各种直接连接，如焊接或者螺钉连接等。带状线内导体与同轴线内导体之间的连接，也可以是金属之间的各种直接连接，如焊接或者螺钉连接等。
优选的，带状线外导体100与耦合地层30为一体金属件。将同轴线20设置于耦合地层30的耦合孔段300内时，可以实现带状线外导体100与同轴线外导体200之间的耦合连接，从而可以降低现有技术中由于带状线与同轴线互联时，带状线外导体与同轴线外导体之间金属接触和焊接等引起的无源互调干扰，进而提高通信系统的质量。
进一步的，如图3所示(图3为本发明实施例提供的图1所示的线缆中，耦合地层30和设置于耦合地层30的耦合孔段300内的同轴线20的横切面的展开图)，本发明实施例提供的线缆，还包括第二绝缘介质40，第二绝缘介质40设置于耦合地层30内，具体设置于同轴线外导体200与耦合孔段300之间，同轴线外导体200与耦合地层30之间有一层绝缘膜，即第二绝缘介质40，从而可以规避由于金属接触产生的无源互调干扰。
由于实际工艺中所使用的同轴线20大多都是圆柱形的，因此，优选的，耦合孔段300为圆柱形孔段，这样可以使得同轴线外导体200与耦合地层30之间形成360度耦合连接，保证同轴线外导体200与耦合地层30之间具有较好的耦合效果。
更进一步的，耦合孔段300贯穿所述耦合地层30的轴心，从而使得同轴线20通过耦合孔段300与耦合地层30耦合连接时，形成360度的均匀电场，具有较好的耦合效果。
需要说明的是，带状线信号腔101与耦合地层30可以平行排 布，也可以呈一定角度排布(如图4所示)。其中，当带状线信号腔101与耦合地层30平行排布时，可以节省天线内部的空间；当带状线信号腔101与耦合地层30呈一定夹角排布时，可以简化制作工艺。
需要补充的是，本发明实施例中所说的同轴线外导体可以是同轴线自带的同轴线外导体，如图5中A(即阴影部分)所示；也可以是额外再加一个360度金属套筒后形成的外导体，如图5中B(即阴影部分)所示，在如图5所示的同轴线中，同轴线外导体包括额外增加的金属套筒和同轴线自带的外导体两部分。
本发明实施例提供的一种线缆，包括：带状线和同轴线，同轴线包括同轴线外导体，带状线包括带状线外导体，线缆还包括：设置有耦合孔段的耦合地层，同轴线设置于耦合孔段内，且同轴线外导体与耦合地层耦合连接，带状线外导体与耦合地层连接，带状线内导体与同轴线内导体连接，能够减少现有技术中同轴线通过与接地块焊接所产生的无源互调干扰，提高通信系统的质量。
图6所示的为本发明另一实施例提供的一种线缆，如图6所示，包括带状线10和同轴线20，带状线10包括带状线外导体100(在该实施例中分为上地和下地)以及如图1-5中的带状线信号腔101、带状线内导体102、同轴线外导体200、第一绝缘介质201、同轴线内导体202，第二绝缘介质40，耦合地层30。
其中，耦合地层30与同轴线外导体200近似360度耦合连接，耦合地层30与带状线地层(即带状线外导体100)连接，同轴线内导体202与带状线内导体102连接。
在本实施例中，为了说明半封闭的带状线设计，耦合地层30与带状线外导体100独立存在，然后通过螺钉(如图6中a和b所示)将带状线的上下地(即带状线外导体100)与耦合地层30连接起来。
具体的，耦合地层30与带状线10物理上分开设计，通过螺钉把它们连接起来，减少部分无源互调干扰，相比现有技术，减少了同轴线外导体与接地块的焊接。同轴线外导体与耦合地层30之间有一层绝缘介质，从而可以从设计上规避无源互调干扰产生的源头 (即金属间的直接接触)。
本发明实施例提供的一种线缆，包括：带状线和同轴线，同轴线包括同轴线外导体，带状线包括带状线外导体，线缆还包括：设置有耦合孔段的耦合地层，同轴线设置于耦合孔段内，且同轴线外导体与耦合地层耦合连接，带状线外导体与耦合地层连接，带状线内导体与同轴线内导体连接，能够减少现有技术中同轴线通过与接地块焊接所产生的无源互调干扰，提高通信系统的质量。
本发明实施例提供一种移相器装置，如图7所示，该移相器装置包括：带状线10、同轴线20、耦合地层30。其中，耦合地层30与同轴线外导体近似360度耦合连接，耦合地层30与带状线地层连接，同轴线内导体与带状线内导体连接。
在本发明提供的实施例中，为了简化实际工艺设计的复杂度，将耦合地层与带状线外导体一体化，即耦合地层与带状线外导体是一个金属件，或者也可以是塑料电镀后形成的对高频信号来说可以当作金属件的物质，并且，带状线信号腔和耦合孔段通过特殊工艺一体拉挤成型。
一般的，本发明实施例所提供的移相器装置应用于基站天线系统里面，基站天线通常为双极化设计，针对每一个极化都需要一个移相器，基站天线的移相器为成对出现的，所以，在本实施例中，该移相器装置所采用的带状线上下排布，共用一个地层，以便降低两个移相器所占用的空间，并且耦合孔段和带状线信号腔平行排布，可以进一步减小移相器的尺寸。
移相器内部的设计可以是介质滑动改变相位的移相器，也可以是通过改变电路物理长度的移相器。本实施例中采用第二种形式，即通过拉动滑动PCB，与固定PCB之间产生相对的物理长度改变实现移相。移相器的原理在此不做详细阐述。
本发明实施例所提供的移相器是一个一进五出的集总式移相器(如图7所示)，该移相器包括6根同轴线，该6根同轴线分别依次设置于6个耦合地层30(a)、30(b)、30(c)、30(d)、30(e)、30(f)内，该6根同轴线和带状线10可以采用如图1-图6中的任 一种连接方式进行连接，信号通过设置于耦合地层30(d)内的同轴线耦合输入，再通过设置于耦合地层30(a)、30(b)、30(c)、30(e)、30(f)内的同轴线耦合输出。
图8所示的为本发明实施例提供另一种移相器装置，如图8所示，该移相器装置包括：带状线10、同轴线20、第二绝缘介质、耦合地层30。其中，耦合地层30与同轴线外导体近似360度耦合连接，耦合地层与带状线地层连接，同轴线内导体与带状线内导体连接。
在本发明提供的实施例中，为了简化实际工艺设计的复杂度，将耦合地层与带状线外导体一体化，即耦合地层与带状线外导体是一个金属件，或者也可以是塑料电镀后形成的对高频信号来说可以当作金属件的物质，并且，带状线信号腔和耦合孔段通过特殊工艺一体拉挤成型。
在本实施例中，该移相器装置所采用的带状线上下排布，共用一个地层，以便降低两个移相器所占用的空间，并且耦合孔段和带状线信号腔垂直(即成90度夹角)排布，可以简化带状线与同轴线的装配复杂度，使其可以方便装配。
根据图8可以看出，本发明实施例提供的移相装置是一个1进9出的移相器。
移相器中包含PCB电路和可沿着介质移动方向滑动的介质；沿着指示的移动方向移动介质，从输入口到每个输出口的电长度将根据需要进行调整，输出口经由同轴线与阵列天线的辐射单元相连，以便使输入口的高频信号经由带状线，耦接至同轴线再到辐射单元形成电磁波辐射出去，进行空间无线传输。
本发明实施例提供的移相器，其耦合孔段和带状线信号腔不是平行排布，而是呈现一个角度排布，具体的，耦合孔段和带状线信号腔成90度夹角，这样能够使得移相器装配简单。
本发明实施例提供的移相器，使用上述实施例中描述的任意一种线缆，与现有移相器相比，减小了由于同轴线外导体与带状线外导体之间焊接或者螺钉连接所产生的无源互调干扰，提高了通信系 统的通信质量。
需要说明的是，本发明实施例所提供的线缆不仅仅可以应用在移相器装置中，还可以应用于其他高频器件中，比如滤波器等。本发明对此不做限制。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (9)

  1. 一种线缆，包括：带状线(10)和同轴线(20)，所述带状线(10)从外到内依次包括带状线外导体(100)、带状线信号腔(101)和带状线内导体(102)，所述同轴线(20)从外到内依次包括同轴线外导体(200)、第一绝缘介质(201)和同轴线内导体(202)，其特征在于，所述线缆还包括耦合地层(30)，所述耦合地层(30)内设置有贯穿所述耦合地层(30)的耦合孔段(300)，所述同轴线(20)设置于所述耦合孔段(300)内，所述同轴线外导体(200)与所述耦合地层(30)耦合连接，所述带状线外导体(100)与所述耦合地层(30)连接，所述带状线内导体(102)与所述同轴线内导体(202)连接。
  2. 根据权利要求1所述的线缆，其特征在于，所述线缆还包括：第二绝缘介质(40)，所述第二绝缘介质(40)设置于所述同轴线外导体(200)与所述耦合地层(30)之间。
  3. 根据权利要求1或2所述的线缆，其特征在于，所述带状线外导体(100)与所述耦合地层(30)为一体金属件。
  4. 根据权利要求1-3任一项所述的线缆，其特征在于，
    所述同轴线外导体(200)为圆柱体，且所述耦合孔段(300)为圆柱体孔段。
  5. 根据权利要求1-4任一项所述的线缆，其特征在于，
    所述耦合孔段(300)贯穿所述耦合地层(30)的轴心。
  6. 根据权利要求1-5任一项所述的线缆，其特征在于，所述带状线信号腔(101)和所述耦合地层(30)平行排布。
  7. 根据权利要求1-5任一项所述的线缆，其特征在于，所述带状线信号腔(101)和所述耦合地层(30)形成夹角。
  8. 根据权利要求1-7任一项所述的线缆，其特征在于，所述带状线内导体(102)与所述同轴线内导体(202)耦合连接。
  9. 一种高频器件，其特征在于，包括：如权利要求1-8中任一项所述的线缆。
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EP3297092B1 (en) 2020-02-05
US10505251B2 (en) 2019-12-10

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