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WO2018194265A1 - Dispositif d'antenne de station de base à élimination de signal pimd comprenant un élément actif - Google Patents

Dispositif d'antenne de station de base à élimination de signal pimd comprenant un élément actif Download PDF

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Publication number
WO2018194265A1
WO2018194265A1 PCT/KR2018/002813 KR2018002813W WO2018194265A1 WO 2018194265 A1 WO2018194265 A1 WO 2018194265A1 KR 2018002813 W KR2018002813 W KR 2018002813W WO 2018194265 A1 WO2018194265 A1 WO 2018194265A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
station antenna
active element
circuit board
ground plate
Prior art date
Application number
PCT/KR2018/002813
Other languages
English (en)
Korean (ko)
Inventor
오경섭
김요한
장성우
Original Assignee
주식회사 감마누
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 주식회사 감마누 filed Critical 주식회사 감마누
Publication of WO2018194265A1 publication Critical patent/WO2018194265A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526—Electromagnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them

Definitions

  • the present invention relates to a base station antenna device capable of removing a PIMD signal, and more particularly, to a base station antenna device capable of removing or significantly reducing a PIMD signal generated from a nonlinear element inside an antenna.
  • Intermodulation (hereinafter referred to as IMD) signal may occur due to mutual interference between the multi-band frequencies of the antenna during high power transmission through the antenna, which is a passive element in a mobile communication system, which is called passive intermodulation distortion (PIMD). Distortion) signal.
  • the PIMD signal is a noise signal rather than a normal signal, and when a cross-modulation signal of a predetermined level is introduced, the communication system processes it as a data signal, which degrades the normal signal and degrades the call quality. Therefore, the PIMD signal of the antenna should be suppressed within the required level required by the industry.
  • the cause of PIMD in RF components can be classified into contact nonlinearity and material nonlinearity.
  • the causes of contact nonlinearity include the bonding capacity of the thin oxide layer between the conductors, the tunnel effect by the semiconductor action between the conductors in the metal contact, the micro-discharge due to the gaps and micro cracks between the metals, and the dust on the metal surface.
  • nonlinearity associated with metal particles, constriction resistance generated from metal bonds, and the causes of material nonlinearity include hysteresis effects such as nickel, iron, and cobalt, internal schottky effect, and Thermal heating due to limited conductivity and the like.
  • the PIMD signal generated at the antenna and generally, the PIMD signal is known to be mainly generated due to incomplete contact at the contact point between metals inside the antenna. Accordingly, in order to suppress the PIMD signal of the antenna, a focus has been placed on a technique of improving the connection stability of the connector and the cable and the connector and the connection terminal.
  • the base station antenna has several radiating elements, which creates a narrow beam width to limit the service area.
  • a motor for adjusting the phase of the signal applied to each radiating element is mounted inside the antenna and rotates the signal to be applied to each radiating element
  • RET Remote Electrical Tilt
  • Patent Document 1 KR 10-1017670 (2011.02.18)
  • the present invention has been made to solve the above problems, and in the field of base station antennas, a solution from a completely new point of view has been made so far that efforts to remove PIMD signals have been made mainly in terms of contact and materials for cables and connectors.
  • the object is to eliminate or reduce the PIMD signal of the base station antenna comprising the active element. Therefore, the purpose of the present invention is to obtain a result that satisfies the industry standard, which has not been achieved so far, for a base station antenna including an active element.
  • a base station antenna apparatus capable of removing a PIMD signal may include: a ground plate; One or more radiating elements supported by the ground plate and disposed on one side of the ground plate; A power distribution circuit for supplying power to the one or more radiation elements; A PCB circuit board comprising one or more nonlinear elements; A plurality of cables connected to the PCB circuit board; Shielding means for shielding the plurality of cables from electromagnetic waves; A plurality of filter means connected to the plurality of cables and the shielding means; And connecting means for connecting the shielding means and the ground plate.
  • the shielding means may be a metal foil or a metal braid.
  • the plurality of copying means may be multi-band copying means for copying signals of different frequency bands.
  • the ground plate may be a reflector that reflects power radiated by the radiation means in a specific direction.
  • the PCB circuit board may further include a ground portion.
  • a base station antenna apparatus capable of removing a PIMD signal may include: a ground plate; One or more radiation elements supported and disposed by the ground plate on one side of the ground plate; A power distribution circuit for supplying power to the one or more radiation elements; A PCB circuit board comprising one or more nonlinear elements and a ground portion; A plurality of cables connected to the PCB circuit board; And a plurality of filter means connected to each of the plurality of cables and the ground portion.
  • the shielding means may be a metal foil or a metal braid.
  • the plurality of copying means may be multi-band copying means for copying signals of different frequency bands.
  • the ground plate may be a reflector that reflects power radiated by the radiation means in a specific direction.
  • the present invention it is possible to eliminate or significantly reduce the PIMD signal generated inside the base station antenna including the active element.
  • the present invention it is possible to meet the industry's requirements for the PIMD signal generated inside the base station antenna including the active element.
  • FIG. 1 illustrates a principle of generating a PIMD signal in a base station antenna.
  • FIG. 2 illustrates a base station antenna apparatus including an active element capable of removing a PIMD signal according to an embodiment of the present invention.
  • FIG. 3 illustrates a base station antenna device including an active device capable of removing a PIMD signal according to another embodiment of the present invention.
  • a signal means an electric quantity such as a voltage or a current.
  • FIG. 1 illustrates that a PIMD signal is generated at a base station antenna.
  • leakage power is generated behind a ground plate in a power distribution circuit, a radiating element, and the like until transmission power entering the antenna input port reaches a radiating element of the antenna.
  • the leakage power may be introduced into a cable connecting each signal generator such as a motor and a sensor, and a PCB circuit board including nonlinear elements.
  • the signals I 1 +, f1 + f2, I 1-, f1 + f2 ... I N , f1 + f2 of the two frequency bands input to the PCB circuit board through the cable are generated by nonlinear elements in the PCB circuit board.
  • Intermodulated (IMD) Signals P 2f2-f1 and P 2f1-f2 , and the generated intermodulation (IMD) signals are radiated back to the antenna ground plate and the power distribution circuit through the cable, which distorts the normal signal and degrades the call quality. It acts as a cause.
  • FIG. 2 is a diagram illustrating a base station antenna device including an active element capable of removing a PIMD signal according to an embodiment of the present invention.
  • the base station antenna device capable of removing the PIMD signal may be electrically connected to the signal generator 10 through a cable 100 and include a PCB circuit board 200 including a plurality of nonlinear elements 210 and a filter. Means 600, a ground portion 220 formed on the opposite side of the surface on which the non-linear element 210 of the PCB circuit board 200 is formed, a ground plate 300 installed between the ground portion 220 and the radiation element 400 ), And the like.
  • the cable 100 is configured to electrically connect a signal generated from each signal generator 10 such as a motor or a sensor to a pattern (nonlinear element) 210 formed on the PCB circuit board 200.
  • the PCB circuit board 200 Is connected to the non-linear device 210. That is, the cable 100 is electrically connected to send and receive signals with the nonlinear elements 210 formed on the PCB circuit board 200.
  • the cable 100 is required to reduce the antenna transmission power of f1 + f2 flowing into the nonlinear element 210 to reduce the PIMD generated from the nonlinear element 210, so that the cable 100 is shielded by a metal conductor or the like ( Shield (500) and is connected to the ground plate 300 by the connecting means (510).
  • the connecting means 510 may be connected to one or both ends of the shielding means 500 as a ground wire.
  • a plurality of nonlinear elements 210 exist on the PCB circuit board 200, and signals generated by each signal generator 10 are transmitted to the nonlinear elements 210 of the PCB circuit board 200 through the cable 100. do.
  • the transmit power entering the antenna input port is divided into two frequency bands input to the PCB circuit board 200 by the leakage power from the radiation element and the power distribution circuit.
  • the signals I 1+, f1 + f2, I 1-, f1 + f2 ... I N , f1 + f2 are generated by the IMD signal P 2f2-f1 , P by the nonlinear element 210 in the PCB circuit board 200. 2f1-f2 ), the PIMD signal generated from the nonlinear element 210 flows out of the cable 100, is radiated again from the cable, and flows back into the power distribution circuit and the radiating element 400 to distort the normal signal.
  • the filter means 600 is a signal (I 1 +, f 1 + f 2, I 1-, f 1 + f 2 ... I N , f 1 + f 2 ) introduced into the cable 100 is introduced to the non-linear elements of the PCB circuit board In a configuration for blocking, the cable 100 and the cable shielding means 500 is connected. That is, the plurality of filter means 600 is connected to the cable 100 through a connection line 610, the connection line 610 is also connected to the cable shielding means 500. Therefore, the filter means 600 is connected to the input signal (I 1 +, f 1 + f 2, I 1-, f 1 + f 2 ... I N , f 1 + f 2 ) through the cable shielding means 500 to the ground plate 300. By suppressing the generation of PIMD signal.
  • Filter means 600 is provided for each signal generator, can be configured in various ways according to the frequency characteristics, if the desired frequency band can be cut or passed there is no limit to the type.
  • the filter is provided with the number of signal generators and cables can be connected to each cable.
  • a radiation device 400 is disposed on one surface of the ground plate 300, and lines for distributing an input signal to the radiation device are formed on the other surface.
  • the ground plate 300 serves as a reflector to direct power from the radiating element to the front of the antenna, and a power distribution circuit (no number) is disposed on the other side of the ground plate.
  • Power that drives each of the signal generators 10, such as a motor and a sensor, and signals generated by the signal generator are input to the PCB circuit board 200 through the cable 100, and leaked from the radiating element of the antenna and the power distribution circuit.
  • the leaked power is also transmitted to the nonlinear device 210 of the PCB circuit board 200 through the cable 100.
  • the signals I 1+, f1 + f2, I 1-, f1 + f2 ... I N , f1 + f2 of the two frequency bands inputted from the leakage power and input to the nonlinear element 210 are PIMD signals P 2f2-. f1 , P 2f1-f2 ).
  • the signal leaked from the radiating element and the power distribution circuit and the like introduced into the cable 100 is filtered by the filter means 600 and flows through the ground line 510 to the ground plate 300 by the signal by the leakage power By preventing them from being transmitted to the nonlinear elements of the PCB circuit board 200, it is possible to suppress the generation of the PIMD signals P 2f2-f1 and P 2f1-f2 .
  • FIG. 3 is a diagram illustrating a base station antenna device including an active element capable of removing a PIMD signal according to another embodiment of the present invention.
  • the antenna device capable of removing the PIMD signal may be electrically connected to the signal generator 10 through a cable 100, and may include a plurality of nonlinear elements 210 and a ground circuit. , A plurality of filter means 600 formed on the PCB circuit board 200, a ground part 220 formed on the opposite side of the surface on which the nonlinear elements 210 of the PCB circuit board 200 are disposed, and a ground plate 300. ), And the like.
  • FIG. 3 differs from the embodiment of FIG. 2 in that the filter means 600 connected to each cable 100 do not have shielding means for shielding the cable 100. It is connected to the branch 220.
  • the filter means 600 formed on the PCB circuit board 200 has a configuration provided for each cable and connects the cable 100 and the grounding part 220 through the connection line 710.
  • each signal generator 10 such as a motor and a sensor are input to the PCB circuit board 200 via the cable 100, and the leakage power leaked from the radiating element and the power distribution circuit of the antenna is also included in the cable ( 100 is transmitted to the nonlinear device 210 of the PCB circuit board 200.
  • the signals I 1 +, f1 + f2, I 1-, f1 + f2 ... I N , f1 + f2 derived from the leakage power and input to the nonlinear element 210 are PIMD signals P 2f2-f1 and P 2f1. -f2 ).
  • the signals I 1+, f1 + f2, I 1-, f1 + f2 ... I N , f1 + f2 leaked from the radiating element, the power distribution circuit and the like and flowed into the cable 100 are filter means ( 600 is filtered by the connection line 710 flows out to the ground 220, it can be prevented from being transmitted to the non-linear device 210 of the PCB circuit board 200 can suppress the PIMD generation.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La présente invention concerne une technique d'élimination d'un signal PIMD dans un dispositif d'antenne de station de base. Le dispositif d'antenne de station de base selon la présente invention comprend : une prise de terre; un ou plusieurs éléments de rayonnement supportés par la prise de terre et disposés sur une surface latérale de la prise de terre; un circuit de distribution d'énergie pour fournir de l'énergie au ou aux éléments de rayonnement; une carte de circuit imprimé comprenant un ou plusieurs éléments non linéaires; une pluralité de câbles connectés à la carte de circuit imprimé; un moyen de blindage pour protéger la pluralité de câbles d'une onde électromagnétique; une pluralité de moyens de filtration connectés à la pluralité de câbles et au moyen de blindage; et un moyen de connexion pour connecter le moyen de blindage et la prise de terre. Selon la présente invention, un signal PIMD généré dans un élément non linéaire à l'intérieur d'une antenne peut être éliminé ou significativement réduit.
PCT/KR2018/002813 2017-04-21 2018-03-09 Dispositif d'antenne de station de base à élimination de signal pimd comprenant un élément actif WO2018194265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170051548A KR101929348B1 (ko) 2017-04-21 2017-04-21 Pimd 신호 제거가 가능한, 능동소자를 포함하는 기지국 안테나 장치
KR10-2017-0051548 2017-04-21

Publications (1)

Publication Number Publication Date
WO2018194265A1 true WO2018194265A1 (fr) 2018-10-25

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PCT/KR2018/002813 WO2018194265A1 (fr) 2017-04-21 2018-03-09 Dispositif d'antenne de station de base à élimination de signal pimd comprenant un élément actif

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KR (1) KR101929348B1 (fr)
WO (1) WO2018194265A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7511027B2 (ja) 2020-05-26 2024-07-04 ケーエムダブリュ・インコーポレーテッド アンテナ装置
KR102681977B1 (ko) * 2023-10-10 2024-07-04 이돈신 광대역 복사소자를 적용한 이동통신용 송수신 분리형 다중 다이버시티 안테나 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010086337A (ko) * 2000-01-14 2001-09-10 앤드류 코포레이션 패치/마이크로스트립 요소를 사용하여 번개로부터 활성안테나 시스템을 보호하기 위한 보호물
US20130120202A1 (en) * 2011-11-14 2013-05-16 Powerwave Technologies, Inc. Common multi-purpose actuator to control antenna remote electrical tilt, remote azimuth steering and remote azimuth beam-width control
WO2014085345A1 (fr) * 2012-11-30 2014-06-05 P-Wave Holdings, Llc Détecteur d'intermodulation passive intégré pour équipement de station de base
US20140225802A1 (en) * 2013-02-08 2014-08-14 Gerardo Huerta Adjustable-tilt housing with flattened dome shape, array antenna, and bracket mount
KR101644445B1 (ko) * 2015-12-10 2016-08-01 주식회사 감마누 기지국 안테나

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010086337A (ko) * 2000-01-14 2001-09-10 앤드류 코포레이션 패치/마이크로스트립 요소를 사용하여 번개로부터 활성안테나 시스템을 보호하기 위한 보호물
US20130120202A1 (en) * 2011-11-14 2013-05-16 Powerwave Technologies, Inc. Common multi-purpose actuator to control antenna remote electrical tilt, remote azimuth steering and remote azimuth beam-width control
WO2014085345A1 (fr) * 2012-11-30 2014-06-05 P-Wave Holdings, Llc Détecteur d'intermodulation passive intégré pour équipement de station de base
US20140225802A1 (en) * 2013-02-08 2014-08-14 Gerardo Huerta Adjustable-tilt housing with flattened dome shape, array antenna, and bracket mount
KR101644445B1 (ko) * 2015-12-10 2016-08-01 주식회사 감마누 기지국 안테나

Also Published As

Publication number Publication date
KR101929348B1 (ko) 2018-12-14
KR20180118356A (ko) 2018-10-31

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