WO2015043304A1 - Câble de commande de communication utilisé pour une antenne de station de base et dispositif de commande à distance intégré - Google Patents

Câble de commande de communication utilisé pour une antenne de station de base et dispositif de commande à distance intégré Download PDF

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Publication number
WO2015043304A1
WO2015043304A1 PCT/CN2014/083018 CN2014083018W WO2015043304A1 WO 2015043304 A1 WO2015043304 A1 WO 2015043304A1 CN 2014083018 W CN2014083018 W CN 2014083018W WO 2015043304 A1 WO2015043304 A1 WO 2015043304A1
Authority
WO
WIPO (PCT)
Prior art keywords
control cable
communication control
magnetic ring
base station
injection molding
Prior art date
Application number
PCT/CN2014/083018
Other languages
English (en)
Chinese (zh)
Inventor
王政东
宁明艳
郭朝阳
李志勇
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
Publication of WO2015043304A1 publication Critical patent/WO2015043304A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
    • H01R13/7193—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with ferrite filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/02—Connectors or connections adapted for particular applications for antennas

Definitions

  • the utility model relates to the technical field of communication devices, in particular to a communication control cable for a base station antenna and a built-in remote control unit.
  • RCU remote remote control unit
  • built-in RCU built-in RCU
  • the technical difficulty of the built-in RCU is how to cost-effectively solve the problem of deterioration of Passive Inter-Modulation (PIM).
  • PIM Passive Inter-Modulation
  • PIM is an important factor limiting system capacity.
  • active devices two or more frequencies are mixed together in a nonlinear device to produce a spurious signal -PIM.
  • the sensitivity of the receiver is reduced, resulting in a reduction in call quality or system carrier-to-interference ratio (C/I), and a reduction in the capacity of the communication system.
  • C/I system carrier-to-interference ratio
  • FIG. 1 the figure is a schematic diagram of a built-in RCU of a base station antenna provided in the prior art.
  • the motor unit 100 is connected to the control unit 200 via a communication control cable 100a, and the motor unit 100 can be pulled away from the control unit 200 by the communication control cable 100a.
  • the control unit 200 is connected to the Antenna Interface Standards Group (AISG) connector 300 via a communication control cable 100a. Both the motor unit 100 and the control unit 200 are covered with a metal shielded cavity.
  • AISG Antenna Interface Standards Group
  • the outer sheath of the communication control cable 100a has a wound metal shielding film inside.
  • the metal shielding film is prone to metal unreliable contact at the break of the communication control cable 100a, and there is a large amount of nonlinearity on the internal PCB of the control unit 200.
  • the device which causes a strong PIM degradation. Therefore, how to provide a communication control cable can reduce the PIM deterioration of the system after the RCU is built in the base station antenna, which is a technical problem to be solved by those skilled in the art.
  • the embodiment of the present invention provides a communication control cable for a base station antenna and a built-in remote control unit, which can reduce PIM deterioration of the system after the RCU is built in the base station antenna.
  • a communication control cable for a base station antenna is provided, and at least one absorbing magnetic ring is disposed on a metal shielding film of the communication control cable;
  • the absorbing magnetic ring is for absorbing an induced electromagnetic signal above a predetermined frequency.
  • the absorbing magnetic ring is cylindrical.
  • the inner hole of the absorbing magnetic ring is closely attached to the metal shielding film outside the communication control cable.
  • the length of the absorbing magnetic ring is greater than or equal to a preset value.
  • the material of the absorbing magnetic ring is nickel ytterbium ferrite.
  • the absorbing magnetic ring further includes an injection-molded protective rubber sleeve.
  • the injection molding protective rubber sleeve comprises: a flower net module, a magnetic ring protection injection molding module, a bending line protection injection molding module, and a card. Connect the fixed injection molding module;
  • the flower net module is connected to a metal shielding film outside the communication control cable;
  • the magnetic ring protection injection molding module is disposed outside the absorbing magnetic ring for protecting the absorbing magnetic ring; the bending line protection injection molding module is disposed between the magnetic ring protection injection molding module and the card joint fixed injection molding module;
  • the snap-on fixed injection molding module is disposed at a communication control cable clamping position.
  • the flower net module, the magnetic ring protection injection molding module, the curved wire protection injection molding module, and the card-connected fixed injection molding module are Injection film.
  • the eighth possible implementation manner Medium also including a small absorbing magnetic ring
  • the small absorbing magnetic ring is disposed at a control communication cable connected to the PCB board in the control unit on the control unit side.
  • a base station antenna built-in remote control unit including: a motor unit, a control unit, an antenna interface standard organization AISG connector, and the communication control cable;
  • the motor unit and the control unit are connected by the communication control cable;
  • the AISG connector and the control unit are connected by the communication control cable.
  • the communication control cable provided in this embodiment has at least one absorbing magnetic ring on the metal shielding film of the communication control cable.
  • the absorbing magnetic ring has a high frequency impedance for the induced electromagnetic signal above a predetermined frequency. Characteristics, so the absorbing magnetic ring can reduce the conduction of near-field electromagnetic energy induced by the communication control cable to the metal shielding film port PIM source, the PCB board PIM source, and the motor PIM source, and solve the problem of PIM deterioration after the base station antenna has a built-in RCU system. .
  • FIG. 1 is a schematic diagram of a built-in RCU of a base station antenna provided in the prior art
  • Embodiment 1 of a communication control cable provided by the utility model
  • Embodiment 2 of a communication control cable provided by the present invention
  • Embodiment 3 of a communication control cable provided by the present invention.
  • FIG. 5 is a schematic diagram of Embodiment 1 of a built-in RCU of a base station antenna provided by the present invention.
  • an embodiment of the present invention implements a communication control cable for a base station antenna, and at least one absorbing magnetic ring is disposed on the metal shielding film of the communication control cable;
  • the absorbing magnetic ring is for absorbing an induced electromagnetic signal above a predetermined frequency.
  • FIG. 2 the figure is a schematic diagram of a first embodiment of a communication control cable provided by the present invention.
  • the communication control cable for the base station antenna provided in this embodiment is provided with at least one absorbing magnetic ring 400 on the metal shielding film of the communication control cable 100a;
  • one of the absorbing magnetic rings 400 may be disposed outside the metal shielding film of the communication control cable 100a, or a plurality of absorbing magnetic rings may be sleeved.
  • an absorbing magnetic ring may be disposed at each end of the communication control cable 100a, that is, at the connection.
  • an absorbing magnetic ring 400 is taken as an example for introduction.
  • a communication control cable is connected between the motor unit and the control unit, and a communication control cable is connected between the control unit and the AISG connector.
  • the following takes the direct control cable of the motor unit and the control unit as an example. It will be appreciated that the communication control cable between the control unit and the AISG connector is similar.
  • one end of the communication control cable 100a is connected to the control unit, and the other end of the communication control cable 100a is connected to the motor unit; preferably, at the control unit end and the motor unit end, the communication control line A absorbing magnetic ring 400 is disposed on each of the cables.
  • the absorbing magnetic ring 400 can also be provided at only one end, for example only at the control unit end, or only at the motor unit end. Of course, it is better to set the absorbing magnetic ring on both the control unit end and the motor unit end.
  • the absorbing magnetic ring is for absorbing an induced electromagnetic signal above a predetermined frequency.
  • the predetermined frequency may be selected according to actual needs.
  • the predetermined frequency can be 400MHz, and the absorbing magnetic ring can absorb the induced electromagnetic signal at a frequency above 400MHz.
  • the communication control cable provided in this embodiment, at least one absorbing magnetic ring is disposed on the metal shielding film of the communication control cable. Since the absorbing magnetic ring has a high frequency impedance characteristic above a predetermined frequency, the absorbing magnetic ring can reduce the near field electromagnetic energy induced by the communication control cable to the metal shielding film port PIM source, the PCB board PIM source, and the motor. The transmission of the PIM source solves the problem that the system PIM deteriorates after the RCU is built in the base station antenna. It should be noted that, because the absorbing magnetic ring is sleeved outside the communication control cable, the communication control cable provided by the embodiment of the present invention can be designed as a column shape, for example, can be cylindrical, for space saving and convenient installation. Or prismatic, the specific shape is not specifically limited here, as shown in Figure 2. Figure 2 is only a cross-sectional view. Embodiment 2:
  • FIG. 3 the figure is a schematic diagram of Embodiment 2 of a communication control cable provided by the present invention.
  • the inner wall of the absorbing magnetic ring 400 is closely attached to the metal shielding film outside the communication control cable 100a, so that a good coupling effect can be achieved.
  • the length of the absorbing magnetic ring 400 is greater than or equal to a preset value. That is, the length of the absorbing magnetic ring 400 is to ensure a large coupling area between the inner surface of the absorbing magnetic ring 400 and the metal shielding film outside the communication control cable 100a, which is advantageous for the high frequency electromagnetic energy induced by the metal shielding film.
  • the ground is coupled and absorbed by the absorbing magnetic ring 400.
  • the material of the absorbing magnetic ring 400 is preferably nickel ruthenium.
  • an injection molded protective rubber sleeve is further included.
  • the purpose of the injection-protected rubber sleeve is to ensure better contact between the absorbing magnetic ring and the communication control cable, and on the other hand to protect the absorbing magnetic ring from damage.
  • the injection-proof protective rubber sleeve comprises: a flower net module 0, a magnetic ring protection injection molding module A, a bending line protection injection molding module B and a card-connected fixed injection molding module C;
  • the flower net module D is connected to a metal shielding film outside the communication control cable 100a;
  • the flower net module D guarantees a good connection between the injection-proof protective rubber sleeve and the metal shielding film outside the communication control cable 100a;
  • the magnetic ring protection injection molding module A is disposed outside the absorbing magnetic ring 400 for protecting the absorbing magnetic ring 400; mainly protecting the absorbing magnetic ring 400 from being damaged.
  • the curved line protection injection molding module B is disposed between the magnetic ring protection injection molding module A and the clamped fixed injection molding module C, and is used for limiting the bending radius of the wiring bending line, and protecting the metal shielding wear crack outside the communication control cable 100a;
  • the carded fixed injection molding module C communication control cable 100a is connected to the communication control cable 100a is well fixed.
  • the flower net module, the magnetic ring protection injection molding module A, the curved wire protection injection molding module B and the card-connected fixed injection molding module C may be integrally molded and integrally formed.
  • the communication control cable provided in this embodiment is provided with an injection-proof protective rubber sleeve on the outer layer of the absorbing magnetic ring and the contact portion and the interface end of the absorbing magnetic ring and the communication control cable, so that the communication control cable is more The reliability of the application scenario is greatly improved.
  • Embodiment 3 is provided with an injection-proof protective rubber sleeve on the outer layer of the absorbing magnetic ring and the contact portion and the interface end of the absorbing magnetic ring and the communication control cable, so that the communication control cable is more The reliability of the application scenario is greatly improved.
  • FIG. 4 the figure is a schematic diagram of Embodiment 3 of a communication control cable provided by the present invention.
  • the communication control cable provided by the utility model may further comprise a small absorbing magnetic ring 400a;
  • the small absorbing magnetic ring 400a is disposed at a side of the control unit 200 at a bare communication control cable 100a connected to a PCB board in the control unit.
  • Setting the small absorbing magnetic ring 400a can further reduce the high frequency electromagnetic energy induced by the communication control cable to the strong PIM source of the PCB.
  • the absorbing magnetic ring 400 is sleeved on the motor unit 100 and the control unit.
  • the communication between 200 controls the cable 100a.
  • only one absorbing magnetic ring 400 is disposed on the communication control cable 100a.
  • the embodiment of the present invention further provides a remote control unit built in the base station antenna, which is described in detail below with reference to the accompanying drawings.
  • FIG. 5 the figure is a schematic diagram of Embodiment 1 of a remote control unit built in a base station antenna provided by the present invention.
  • the base station antenna provided in this embodiment has a remote control unit, including: a motor unit 100, a control unit 200, and a communication control cable 100a;
  • the motor unit 100 and the control unit 200 are connected through the communication control cable 100a; the communication control cable 100a is connected to one end of the motor unit 100 to set the absorption magnetic ring 400; and / or,
  • the communication control cable 100a is connected to one end of the control unit to set the absorbing magnetic ring 400.
  • one of the absorbing magnetic rings 400 may be disposed outside the metal shielding film of the communication control cable 100a, or a plurality of absorbing magnetic rings may be sleeved.
  • an absorbing magnetic ring may be disposed at each end of the communication control cable 100a, that is, at the connection.
  • an absorbing magnetic ring is disposed at each end of the communication control cable 100a between the motor unit 100 and the control unit 200. Further, an absorbing magnetic ring 400 is disposed on the communication control cable 200 and the AISG 300 direct communication control cable 100a at one end of the control unit 200.
  • At least one absorbing magnetic ring 400 is disposed on the metal shielding film of the communication control cable 100a, and the absorbing magnetic ring 400 can absorb the metal.
  • the high frequency magnetic field energy induced on the shielding film is reduced, and the problem of PIM deterioration after the base station antenna is built into the RCU system is prevented.

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Details Of Aerials (AREA)

Abstract

La présente invention concerne un câble de commande de communication utilisé pour une antenne de station de base et un dispositif de commande à distance (RCU) intégré. Au moins un anneau magnétique absorbant est emmanché à l'extérieur d'un film de blindage métallique du câble de commande de communication. Étant donné que l'anneau magnétique absorbant présente une caractéristique d'impédance haute fréquence pour une fréquence supérieure à une fréquence prédéfinie, l'anneau magnétique absorbant peut réduire la conduction d'une énergie électromagnétique de champ proche détectée par le câble de commande de communication vers une source PIM d'un port du film de blindage métallique, une source PIM d'une carte de circuit imprimé, et une source PIM d'un moteur, de sorte à résoudre le problème selon lequel un PIM de système se dégrade à la suite de l'intégration d'un RCU dans une antenne de station de base. Dans ledit RCU intégré, un câble de commande de communication est connecté entre une unité moteur et une unité de commande, et un câble de commande de communication est connecté entre l'unité de commande et un connecteur AISG. Au moins un anneau magnétique absorbant peut être emmanché sur chaque câble de commande de communication.
PCT/CN2014/083018 2013-09-30 2014-07-25 Câble de commande de communication utilisé pour une antenne de station de base et dispositif de commande à distance intégré WO2015043304A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320615431 2013-09-30
CN201320615431.X 2013-09-30

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Publication Number Publication Date
WO2015043304A1 true WO2015043304A1 (fr) 2015-04-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109686488A (zh) * 2018-12-29 2019-04-26 上海大郡动力控制技术有限公司 用于电机温度采样信号线的屏蔽结构
CN110643130A (zh) * 2019-09-25 2020-01-03 浙江华正新材料股份有限公司 预浸料组合物、半固化片、层压板及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6054649A (en) * 1997-08-08 2000-04-25 Murata Manufacturing Co., Ltd. Insulated wire with noise-suppressing function
CN101232123A (zh) * 2008-01-15 2008-07-30 中兴通讯股份有限公司 电调天线下倾角远程控制系统
CN202735954U (zh) * 2012-08-10 2013-02-13 熊巍 一种防辐射电源

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6054649A (en) * 1997-08-08 2000-04-25 Murata Manufacturing Co., Ltd. Insulated wire with noise-suppressing function
CN101232123A (zh) * 2008-01-15 2008-07-30 中兴通讯股份有限公司 电调天线下倾角远程控制系统
CN202735954U (zh) * 2012-08-10 2013-02-13 熊巍 一种防辐射电源

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109686488A (zh) * 2018-12-29 2019-04-26 上海大郡动力控制技术有限公司 用于电机温度采样信号线的屏蔽结构
CN110643130A (zh) * 2019-09-25 2020-01-03 浙江华正新材料股份有限公司 预浸料组合物、半固化片、层压板及其制备方法

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