WO1999066589A1 - Dispositifs d'emission et/ou de reception de signal radioelectrique - Google Patents

Dispositifs d'emission et/ou de reception de signal radioelectrique Download PDF

Info

Publication number
WO1999066589A1
WO1999066589A1 PCT/GB1999/001623 GB9901623W WO9966589A1 WO 1999066589 A1 WO1999066589 A1 WO 1999066589A1 GB 9901623 W GB9901623 W GB 9901623W WO 9966589 A1 WO9966589 A1 WO 9966589A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
arrangement according
tree
embankment
simulated
Prior art date
Application number
PCT/GB1999/001623
Other languages
English (en)
Inventor
Ronald Edward Potter
Original Assignee
Vodafone Limited
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 Vodafone Limited filed Critical Vodafone Limited
Priority to AU39480/99A priority Critical patent/AU3948099A/en
Publication of WO1999066589A1 publication Critical patent/WO1999066589A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G1/00—Artificial flowers, fruit, leaves, or trees; Garlands
    • A41G1/001—Artificial flowers, fruit, leaves, or trees; Garlands characterised by their special functions
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G1/00—Artificial flowers, fruit, leaves, or trees; Garlands
    • A41G1/007—Artificial trees
    • 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
    • H01Q1/1242—Rigid masts specially adapted for supporting an aerial
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect

Definitions

  • the invention relates to an antenna arrangement, comprising a simulated tree supporting an antenna.
  • Such an arrangement is shown, for example, m EP-A-0 791 976, in US-A-5 611 176 and m US-A-5 787 649.
  • the arrangements can be used for transmitting and receiving radio signals in a cellular telephone or other wireless telecommunications system and are particularly beneficial for situation in rural environments where it is advantageous that antennas may be visually obscured or disguised.
  • the invention aims co prcv_.de improved obscuration and disguising of antennas.
  • the arrangement as first set forth above is characterised m that the antenna is mounted in a hollow portion of the simulated tree.
  • the invention in a second aspect, relates to an antenna arrangement, comprising a simulated tree supporting an antenna.
  • the invention in its second aspect is characterised by an at least partly circular ground-mounted embankment on which the tree is mounted and which embraces and visually obscures the enclosure .
  • Figure 1 is a side view of one of the antenna arrangements embodied in a simulated tree
  • Figure 2 is a diagrammatic enlarged view of part of the simulated tree of Figure 1 ;
  • Figure 3 is an enlarged view of another part of the simulated tree of Figure 1 ;
  • Figure 4 is an enlarged view of another part of the simulated tree of Figure 1, with the external surface broken away to show the internal construction;
  • Figure 5 is an enlarged view of another part of the simulated tree of Figure 1 ;
  • Figure 6 is a side view of another of the arrangements, showing two simulated trees each according to Figure 1, mounted in association with a base station for the cellular telephone system;
  • Figure 7 is a plan view of the arrangement of Figure 6.
  • Cellular telephone systems require a number of geographically distributed base stations each having a transmitting and receiving antenna or antennas by means of which radio signals are transmitted to and from mobile cellular telephones temporarily located within the area located by the base station.
  • Such signals include signals to and from the mobile telephone for registering its presence within that particular area and for use in recording that location in a visitor location register or in some other part of the system, signals for authenticating the mobile telephone to enable calls to be made to and from it, signals carrying voice, data or other digital information from the mobile telephone or other such equipment to other telephones (mobile or fixed), and signals carrying voice, data or other digital information from such other telephones to the mobile telephone or other such equipment .
  • the antenna arrangement shown m Figure 1 ana for use in a cellular telephone system, is constructed and designed to have the appearance of a tree 8, a scots pine in this example. It comprises a hollow rigid support column 10, such as made of pressed steel supporting a hollow housing 12 made, for example, of non-electrically conductive material such as glass reinforced plastic (GRP) , the junction between the column 10 and the housing 12 being shown at 14
  • the column 10 may have a height of six metres, for example, and the housing 12 may have a height of 3 metres, for example
  • the housing 12 supports simulated branches 16, such as made from GRP material and nylon or other suitable materials, as wall be described m more detail below
  • the column 10 has a rigid plate 18 at its lower end by means of which it is bolted to a concrete base 20 which is situated below the ground level 22 and which thus supports the tree 8.
  • a cover 24, such as made of GRP material and of generally frusto-conical shape can be used to embrace and cover the plate 18 and the fixing bolt and to simulate roots of the tree
  • the outside of the column 10 is dressed with resm-based paint or similar material to produce a simulated rough bark effect.
  • the outside of the housing 12 is formed, during the moulding process or afterwards, with suitable surface configurations, again co simulate the bark of the tree
  • FIG. 2 shows how the GRP housing 12 can be attached to the top of the steel column 10 such as by means of a short hollow tubular insert 26 which is welded to the column 10 and secured to the housing 12 by means of flush set screws 28.
  • a short hollow tubular insert 26 which is welded to the column 10 and secured to the housing 12 by means of flush set screws 28.
  • other suitable fixing means may be used instead
  • FIG 3 shows how the steel column 10 may have simulated branch stumps 30, such as made of GRP material, glued to its external surface .
  • An omni -directional antenna 32 is mounted within the housing 12 as shown in more detail in Figure 4.
  • the antenna 32 is mounted by means of a mounting assembly 34 welded onto the top of the sleeve 26 (see Figure 2) .
  • the feeder cable for the antenna 32 is preferably mounted on a wire cable 36 for supporting it and extending down to ground level through the steel column 10 and through hollow ducting shown dotted at 40 m Figure 1.
  • the wire cable 36 may advantageously be mounted on a pulley 38 and similarly mounted at its lower end, to facilitate assembly and maintenance.
  • Figure 5 shows, to a larger scale, the construction of one of the branches 16. It comprises a hollow flexible plastic pipe 42, around which is wrapped resin-soaked fabric 44 to simulate a natural branch. Strengthening cords shown at 46, and made of nylon or carbon fibre or other suitable material, may be incorporated for strengthening purposes.
  • the branch may be separately formed and mounted on a cap 48 at the top of the GRP housing 12.
  • Bristles 50 may be formed from nylon attached to plastic coated wire .
  • the omni -directional antenna 32 is sealed within the hollow interior of the housing 12 and thus protected from weather and ambient conditions. If access is required for maintenance purposes, or during initial installation, the housing 12 may be lifted off the steel column 10, after removing the fixing screws 28 (Figure 2), such as by using a lifting handle 52 ( Figure 5) . This will of course involve the use of suitable lifting equipment and a ladder or means providing a raised platform. Instead, the steel column 10 may be hingedly attached to the concrete base 20 so that, for maintenance and initial installation purposes, the tree 8 may be laid horizontally on the ground and subsequently raised into its operational position. An inspection hatch 51 may be incorporated in the lower part of the column 10 (see Figure 1) .
  • branches 16 be spaced clear of and above the antenna 32, because they might otherwise cause reflections and interference with the correct operation of the antenna, particularly when wet or in icy conditions. Similarly, it is important to avoid the presence of any metal above the column 10, which again could cause interference or reflection.
  • an antenna for a cellular telephone system may be mounted in a visually unobtrusive way in a rural environment, the antenna itself being completely enclosed and externally invisible .
  • the use of an omni -directional antenna 32 is advantageous in that its shape enables it to be incorporated and enclosed in the housing 12. In practice, though, it will be necessary in any particular site to have two such antennas, one for transmitting and one for receiving purposes. Therefore, two such simulated trees, of the form shown in Figure 1, will be needed.
  • Figure 6 shows an advantageous way in which two such trees 8 and 8A can be mounted on an annularly shaped earth embankment or bund 60.
  • the bund may have a height of two metres, say.
  • the use of the bund is advantageous in that it raises the effective height of each antenna by the heignt of the bund.
  • the bund provides a hollow interior space 62 m which can be mounted an equipment cabin 64 enclosing the electrical equipment of the base station which is connected to the antennas m the simulated trees 8 and 8A The cabin 64 is thus externally hidden from view.
  • Another simulated tree 8B (see Figure 7) can be mounted on the bund as a spare, m case of failure of the antennas m the other two trees 8 and 8A.
  • natural trees and bushes can be grown on the bund as shown at 66.
  • the bund can be of part spiral form with overlapping ends 68 and 70, allowing a passageway 72 for access to the cabin 64 for maintenance purposes.
  • the end portions 68 and 70 can be constructed after the cabin 64 has been installed in position.
  • the earth of the bund 60 is suitably reinforced to strengthen it and facilitate drainage.
  • omni -directional antennas be used. Any other suitable antenna may be used instead.
  • One suitable type of antenna is an antenna of the cross polar panel type. Such an antenna both transmits and receives and can have a bore sight of approximately 120 degrees Therefore, three such antennas incorporated in the housing 12 of the tree would provide the required 360 degree coverage. With such antennas, it may therefore not be necessary to have two separate trees, each with a separate omni-directional antenna

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Support Of Aerials (AREA)

Abstract

On décrit une configuration d'antennes destinée à être utilisée en particulier avec un système de téléphone cellulaire et dans un environnement rural. Ce dispositif d'antenne comprend une colonne support creuse en acier (10) habillée d'une gaine creuse (12) en matière plastique renforcée de fibres de verre, par exemple. La colonne support (10) et la gaine (12) sont conçues de manière à présenter un aspect extérieur simulant l'écorce d'un arbre, tel qu'un pin sylvestre. La colonne (10) est boulonnée sur un socle en béton (20) placé au-dessous du niveau du sol (22), et présente une couverture en PRV (24) simulant les racines de l'arbre. La gaine en PRV (12) porte et renferme une antenne équidirective raccordée à une ligne d'alimentation passant à travers la colonne (10) et à travers une conduite (40) située à l'intérieur du socle en béton (20). Des branches simulées (16) sont disposées au sommet de la gaine (12) et dégagées de l'aspect de l'antenne. Un tel arbre simulé présente l'avantage de pouvoir être monté sur une surélévation de terrain généralement circulaire, le compartiment d'équipement d'une station de base du système de téléphone cellulaire étant montée et ocultée dans l'espace intérieur creux de la surélévation et raccordée à la ligne d'alimentation de l'antenne. Un deuxième arbre simulé similaire peut être monté sur la surélévation, de sorte que l'antenne équidirective dans l'un des arbres serve d'antenne d'émission tandis que l'antenne équidirective dans l'autre arbre fait office d'antenne de réception.
PCT/GB1999/001623 1998-06-12 1999-05-21 Dispositifs d'emission et/ou de reception de signal radioelectrique WO1999066589A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU39480/99A AU3948099A (en) 1998-06-12 1999-05-21 Radio signal transmitting and/or receiving arrangements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9812562.8 1998-06-12
GB9812562A GB2333645B (en) 1998-06-12 1998-06-12 Radio signal transmitting and/or receiving arrangements

Publications (1)

Publication Number Publication Date
WO1999066589A1 true WO1999066589A1 (fr) 1999-12-23

Family

ID=10833552

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/001623 WO1999066589A1 (fr) 1998-06-12 1999-05-21 Dispositifs d'emission et/ou de reception de signal radioelectrique

Country Status (3)

Country Link
AU (1) AU3948099A (fr)
GB (1) GB2333645B (fr)
WO (1) WO1999066589A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2195762A1 (es) * 2002-01-25 2003-12-01 Ibelca Ingenieria De Telecomun Sistema de camuflaje de antenas de telecomunicaciones y similares.
ES2195767A1 (es) * 2002-01-30 2003-12-01 Ibelca Ingenieria De Telecomun Camuflaje para antenas de telefonia movil y similares montables en espacios abiertos.
ES2196990A1 (es) * 2002-01-30 2003-12-16 Ibelca Ingenieria De Telecomun Camuflaje para antenas de telefonia movil y similares.
US11533960B2 (en) 2015-02-18 2022-12-27 Misf Holdings Inc Decorative tree with insertable, interchangeable branches system and method

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001015265A1 (fr) * 1999-08-26 2001-03-01 Dorbyl Limited Mat de telecommunications
IT1311622B1 (it) * 1999-12-28 2002-03-14 Calzavara S P A Albero artificiale per il camuffamento di antenne.
ES2160539B1 (es) * 2000-02-10 2003-04-01 Jimenez Belinchon S A Disposicion de camuflaje aplicable sobre torres soporte de antenas de tecelomunicaciones o similares.
NL1016528C2 (nl) * 2000-11-02 2002-05-07 Kaal Mastenfabriek B V Mast voorzien van ten minste ÚÚn antenne, bouwdeel voor zo een antennemast en werkwijze voor het aan een mast bevestigen van een antenne.
US6658797B2 (en) * 2001-01-31 2003-12-09 Absolute Stealth Ltd. Antenna support structure with palm tree skirt
GB2374122A (en) * 2001-04-03 2002-10-09 David Mcknight Wind turbine disguised as a tree
GB0200190D0 (en) * 2002-01-04 2002-02-20 Collinson & Co Ltd E Antenna housing
DE10210419C1 (de) * 2002-03-05 2003-10-23 Torsten Fus Rohrförmiger Dachaufbau zur Aufnahme von Antennen und technischen Komponenten
FR2839991B1 (fr) * 2002-05-24 2005-03-11 Aldo Urtiti Barriere coupe-vent constituees par des arbres factices en matiere plastique ou autres, pour contenir l'avancee du desert
GB0305019D0 (en) * 2003-03-05 2003-04-09 Francis & Lewis Internat Ltd Communications mast
GB2417833A (en) * 2004-09-07 2006-03-08 Europ Satellites Ltd Antenna cover
CZ2010171A3 (cs) * 2010-03-09 2011-01-05 Smalt Spol. S R.O. Podperný ocelový sloup
CN210105436U (zh) * 2019-01-22 2020-02-21 华为技术有限公司 管塔及基站
GB2590536B (en) * 2020-10-16 2022-01-12 Joseph Newman Daniel Halloween artificial tree

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611176A (en) * 1994-03-02 1997-03-18 Juengert; Robert P. Antenna support structure
EP0791976A2 (fr) * 1996-02-23 1997-08-27 Sectional Poles Africa (Proprietary) Limited Camouflage et cache pour des structures d'antennes
US5787649A (en) * 1994-02-28 1998-08-04 Nestor T. Popowych Tree styled monopole tower
WO1998049744A1 (fr) * 1997-04-26 1998-11-05 Alan Dick & Company Limited Mat d'antenne en forme d'arbre
JPH1144128A (ja) * 1997-07-25 1999-02-16 Nisso Consultant:Kk 擬装された無線用等の柱状構造物

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5787649A (en) * 1994-02-28 1998-08-04 Nestor T. Popowych Tree styled monopole tower
US5611176A (en) * 1994-03-02 1997-03-18 Juengert; Robert P. Antenna support structure
EP0791976A2 (fr) * 1996-02-23 1997-08-27 Sectional Poles Africa (Proprietary) Limited Camouflage et cache pour des structures d'antennes
WO1998049744A1 (fr) * 1997-04-26 1998-11-05 Alan Dick & Company Limited Mat d'antenne en forme d'arbre
JPH1144128A (ja) * 1997-07-25 1999-02-16 Nisso Consultant:Kk 擬装された無線用等の柱状構造物

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 099, no. 005 31 May 1999 (1999-05-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2195762A1 (es) * 2002-01-25 2003-12-01 Ibelca Ingenieria De Telecomun Sistema de camuflaje de antenas de telecomunicaciones y similares.
ES2195767A1 (es) * 2002-01-30 2003-12-01 Ibelca Ingenieria De Telecomun Camuflaje para antenas de telefonia movil y similares montables en espacios abiertos.
ES2196990A1 (es) * 2002-01-30 2003-12-16 Ibelca Ingenieria De Telecomun Camuflaje para antenas de telefonia movil y similares.
ES2249937A1 (es) * 2002-01-30 2006-04-01 Jimenez Belinchon, S.A. Mejoras introducidas en la patente de invencion p200200221 por "camuflaje para antena de telefonia movil y similares".
US11533960B2 (en) 2015-02-18 2022-12-27 Misf Holdings Inc Decorative tree with insertable, interchangeable branches system and method

Also Published As

Publication number Publication date
AU3948099A (en) 2000-01-05
GB2333645A (en) 1999-07-28
GB2333645B (en) 2000-03-22
GB9812562D0 (en) 1998-08-12

Similar Documents

Publication Publication Date Title
WO1999066589A1 (fr) Dispositifs d'emission et/ou de reception de signal radioelectrique
US5611176A (en) Antenna support structure
US20010013212A1 (en) Arrangement of camouflage applicable over support towers of telecommunications antennas or similar structure
US6286266B1 (en) Tree styled monopole tower
JP5425617B2 (ja) モジュラーアンテナ塔構造
GB2368468A (en) Antenna mounted on street lamp or telegraph pole
WO2015183925A1 (fr) Perche, système et procédé de communications à petite cellule
TW264595B (fr)
US10347979B1 (en) Apparatus, method, and system for RF-transmissive access panels for elevated and shrouded mobile network components
US11495946B2 (en) Rodent resistant ground level ice bridge
EP0978154B1 (fr) Mat d'antenne en forme d'arbre
US5969693A (en) Multi-user antenna telecommunication tower
US20030142034A1 (en) Telecommunications mast installation
US7027008B2 (en) Antenna ground system
EP1024550B1 (fr) Arbre artificiel à camouflage d' antennes
KR20070057320A (ko) 무선통신용 안테나의 환경 친화적 위장장치
US20210083372A1 (en) Small Cell Installation Structure
CA2488542C (fr) Feu de balisage pour turbine eolienne
JP2707218B2 (ja) 無線通信用アンテナ
RU2776318C1 (ru) Способ монтажа высокочастотного оборудования информационной связи
KR20190093854A (ko) 이동통신 안테나 위장 장치
KR20010027833A (ko) 환경친화형 기지국용 안테나
CN207633838U (zh) 一种安全型变电站高精定位基站连接装置
CN206834845U (zh) 配电自动化终端设备
JP2604322Y2 (ja) 屋外設置用無線装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU JP US ZA

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase