WO2015101137A1 - Dipole fixation in antenna system - Google Patents
Dipole fixation in antenna system Download PDFInfo
- Publication number
- WO2015101137A1 WO2015101137A1 PCT/CN2014/093234 CN2014093234W WO2015101137A1 WO 2015101137 A1 WO2015101137 A1 WO 2015101137A1 CN 2014093234 W CN2014093234 W CN 2014093234W WO 2015101137 A1 WO2015101137 A1 WO 2015101137A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reflector
- dipoles
- fixation
- metal
- dipole
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims abstract description 32
- 229910052755 nonmetal Inorganic materials 0.000 claims description 9
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Images
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
- H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
-
- 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
-
- 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
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/108—Combination of a dipole with a plane reflecting surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Definitions
- the present invention generally relates to communications technology, and more particularly, to a dipole fixation in antenna system.
- Base Station Antennas are indispensable devices for wireless communication system and passive intermodulation (PIM) performance of base station antennas is crucial to good communication quality. Therefore, the design of antenna arrays devotes to improve PIM performance.
- PIM passive intermodulation
- the dipoles are needed to be fixed on the reflector.
- the best existing dipole fixation way is using metal screws 3 to fix the dipoles 1 on the reflector 2, as shown in Figs. 1 to 2.
- the dipoles’ PIM is sensitive to the contact resistance between the dipoles 1 and the reflector 2, and the contact resistance will change when the pressure decrease if the screw 3 is loosened.
- the base station antennas usually work outside, so there are some oxidation products in the connection point of the dipoles 1 (metal A) to the reflector 2 (metal B) due to the humidity in the air, which will unfavorably influence the PIM performance.
- the objective of the present invention is to solve the problems existing in the above fixation ways, and thus a new dipole fixation is proposed to avoid the possible PIM problem.
- the present invention proposes a dipole fixation in an antenna system for fixing dipoles on a reflector, the dipole fixation comprising fixing members passing through apertures on the reflector to fix the dipoles on the reflector; a first non-conductive member arranged between the dipoles and the reflector; and a second non-conductive member arranged between the fixing members and the reflector.
- the non-conductive member is not only provided between the dipoles and the reflector but also between the fixing members and the reflector to avoid any direct metal contact.
- the capacitive coupling connecting ground way is adopted between the dipoles and the reflector, which effectively ensures PIM reliability in the antenna system.
- the fixing members are metal fixing members, such as screws or rivets, so as to ensure that the dipoles can be fixed on the reflector stably.
- the first non-conductive member is a non-metal film or metal film with non-conductive treatment.
- the second non-conductive member is a non-metal washer or metal washer with non-conductive treatment.
- the first non-conductive member and/or the second non-conductive member is provided with a bulge axially extending into the apertures on the reflector, so as to further prevent the direct metal contact, and thus the fixing members such as metal screws cannot touch the front and back sides of the reflector.
- the fixation way is strong enough to afford strong vibration, since the metal fixing member instead of the plastic component is adopted to tighten the dipoles on the reflector;
- Fig. 1 is a schematic view of a dipole fixation in the prior art
- Fig. 2 is a schematic view taken from the bottom of the reflector of Fig. 1;
- Fig. 3 is a schematic view of another dipole fixation in the prior art
- Fig. 4 is a schematic view taken from the bottom of the reflector of Fig. 3;
- Fig. 5 is an exploded perspective view schematically illustrating a dipole fixation according to a preferred embodiment of the present invention.
- Fig. 6 is a sectional view schematically illustrating the assembled dipoles and the reflector by the dipole fixation of Fig. 5.
- the dipole fixation of the present invention will be described in detail with reference to the specific embodiments.
- the directional terms, such as up, down, left and right, will be used as example by referring to the directions as shown in the figures but not used to restrict the protection scope.
- the exampled structural design and the following embodiments are only used to exemplarily explain the specific technical solutions of the present invention, and cannot be used to restrict the protection scope of the present invention.
- the dipole fixation comprises fixing members, such as metal screws, which can pass through the apertures on the reflector 2 and screw into the conductors 9 of the dipoles 1, so that the dipoles 1 can be fixed firmly on the reflector 2.
- the dipole fixation further comprises a first non-conductive member 4 arranged between the dipoles 1 and the reflector 2, such as a non-metal film or metal film with non-conductive treatment.
- the first non-conductive member 4 is provided with an opening through which another conductor 10 (Fig.
- a second non-conductive member 5 is arranged between the fixing members 3 and the reflector 2, such as a non-metal washer or metal washer with non-conductive treatment.
- the washer 5 is also provided with through-hole for the metal screw passing through.
- a bulge 8 is preferably formed on the washer 5 by axially extending into the apertures on the reflector 2 during the assembly for separating the connecting portion of the metal screw 3 from the reflector 2 to avoid direct metal contact.
- the above bulge is not limited to form on the washer 5, and can also form on the film 4 arranged between the dipoles 1 and the reflector 2.
- both the film 4 and the washer 5 can be provided with a bulge oppositely extended. After being positioned and assembled, the stable dipole fixation way with good PIM performance is gotten. And this fixation way is easy to be assembled which has no negative effect on the dipole electrical performance.
- the dipole fixation way of the present invention is stable. At the same time, good PIM performance can be obtained. Further, in the fixation of the present invention, the members are configured with simple structures and easily manufactured. The strange members such as clip in the prior art can be avoided and the film and the washer can be obtained by one-step forming and cutting, so the cost-effectiveness is substantially improved.
- the technical solution for PIM problem according to the present invention has a broad applicability.
- the PIM solving solution idea adopts capacitive coupling connecting ground way to avoid the direct metal contact, and the film and/or washer with bulge ensures the metal non-contact while the metal screw ensures stable connection, so that this invention can be widely applied in other kinds BSA antennas or other fields, such as satellite antenna, radar antenna and so on.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aerials With Secondary Devices (AREA)
- Support Of Aerials (AREA)
Abstract
Description
Claims (5)
- A dipole fixation in an antenna system for fixing dipoles (1) on a reflector (2) , the dipole fixation comprising:fixing members (3) passing through apertures on the reflector (2) to fix the dipoles (1) on the reflector (2) ;a first non-conductive member (4) arranged between the dipoles (1) and the reflector (2) ; anda second non-conductive member (5) arranged between the fixing members (3) and the reflector (2) .
- The dipole fixation of Claim 1, wherein the fixing members (3) are metal fixing members.
- The dipole fixation of Claim 1, wherein the first non-conductive member (4) is a non-metal film or metal film with non-conductive treatment.
- The dipole fixation of Claim 1, wherein the second non-conductive member (5) is a non-metal washer or metal washer with non-conductive treatment.
- The dipole fixation of Claim 1, wherein the first non-conductive member (4) and/or the second non-conductive member (5) is provided with a bulge (8) axially extending into the apertures on the reflector (2) .
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/108,840 US10879580B2 (en) | 2013-12-31 | 2014-12-08 | Dipole fixation in antenna system |
KR1020167020552A KR101941344B1 (en) | 2013-12-31 | 2014-12-08 | Dipole fixation in antenna system |
EP14875973.1A EP3090466B1 (en) | 2013-12-31 | 2014-12-08 | Dipole fixation in antenna system |
JP2016544146A JP6388658B2 (en) | 2013-12-31 | 2014-12-08 | Dipole installation in antenna system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310752207.XA CN103682561B (en) | 2013-12-31 | 2013-12-31 | The fixing device of electric dipole in antenna system |
CN201310752207.X | 2013-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015101137A1 true WO2015101137A1 (en) | 2015-07-09 |
Family
ID=50319340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/093234 WO2015101137A1 (en) | 2013-12-31 | 2014-12-08 | Dipole fixation in antenna system |
Country Status (6)
Country | Link |
---|---|
US (1) | US10879580B2 (en) |
EP (1) | EP3090466B1 (en) |
JP (1) | JP6388658B2 (en) |
KR (1) | KR101941344B1 (en) |
CN (1) | CN103682561B (en) |
WO (1) | WO2015101137A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019235998A1 (en) * | 2018-06-08 | 2019-12-12 | Cellmax Technologies Ab | An antenna arrangement, a radiating element and a method of manufacturing the radiating element |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103682561B (en) | 2013-12-31 | 2018-08-07 | 安弗施无线射频系统(上海)有限公司 | The fixing device of electric dipole in antenna system |
EP3373390B1 (en) | 2015-12-03 | 2021-09-01 | Huawei Technologies Co., Ltd. | Multi-frequency communication antenna and base station |
CN106067585B (en) * | 2016-05-20 | 2018-09-28 | 广东通宇通讯股份有限公司 | Antenna radiating element |
JP6459133B2 (en) * | 2017-05-09 | 2019-01-30 | 有限会社Nazca | Antenna device |
CN107528114B (en) * | 2017-07-13 | 2019-06-11 | 广州杰赛科技股份有限公司 | A kind of low frequency radiating element gasket and Bipolarization antenna for base station |
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US20040201537A1 (en) | 2003-04-10 | 2004-10-14 | Manfred Stolle | Antenna having at least one dipole or an antenna element arrangement which is similar to a dipole |
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2014
- 2014-12-08 US US15/108,840 patent/US10879580B2/en active Active
- 2014-12-08 KR KR1020167020552A patent/KR101941344B1/en active IP Right Grant
- 2014-12-08 EP EP14875973.1A patent/EP3090466B1/en active Active
- 2014-12-08 WO PCT/CN2014/093234 patent/WO2015101137A1/en active Application Filing
- 2014-12-08 JP JP2016544146A patent/JP6388658B2/en active Active
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US20100283710A1 (en) | 2009-05-08 | 2010-11-11 | Thomas Goss Lutman | Connection for antennas operating above a ground plane |
CN202150554U (en) | 2011-05-16 | 2012-02-22 | 摩比天线技术(深圳)有限公司 | Ultra-wideband dual-polarized antenna oscillator |
CN202495565U (en) | 2012-03-16 | 2012-10-17 | 华为技术有限公司 | Connecting structure in antenna and antenna |
CN103682561A (en) | 2013-12-31 | 2014-03-26 | 安弗施无线射频系统(上海)有限公司 | Fixing device for electric dipole in antenna system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019235998A1 (en) * | 2018-06-08 | 2019-12-12 | Cellmax Technologies Ab | An antenna arrangement, a radiating element and a method of manufacturing the radiating element |
Also Published As
Publication number | Publication date |
---|---|
EP3090466B1 (en) | 2021-10-06 |
EP3090466A4 (en) | 2017-09-20 |
US10879580B2 (en) | 2020-12-29 |
JP6388658B2 (en) | 2018-09-12 |
US20160322696A1 (en) | 2016-11-03 |
EP3090466A1 (en) | 2016-11-09 |
CN103682561A (en) | 2014-03-26 |
KR20160102559A (en) | 2016-08-30 |
KR101941344B1 (en) | 2019-01-22 |
JP2017501643A (en) | 2017-01-12 |
CN103682561B (en) | 2018-08-07 |
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