EP2234198A1 - Support d'antenne hélicoïdale - Google Patents

Support d'antenne hélicoïdale Download PDF

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Publication number
EP2234198A1
EP2234198A1 EP09305257A EP09305257A EP2234198A1 EP 2234198 A1 EP2234198 A1 EP 2234198A1 EP 09305257 A EP09305257 A EP 09305257A EP 09305257 A EP09305257 A EP 09305257A EP 2234198 A1 EP2234198 A1 EP 2234198A1
Authority
EP
European Patent Office
Prior art keywords
support
antenna
branches
outer edge
slots
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP09305257A
Other languages
German (de)
English (en)
Other versions
EP2234198B1 (fr
Inventor
Denis Guillot-Jérôme
Vincent Rigomier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Itron France SAS
Original Assignee
Itron France SAS
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 Itron France SAS filed Critical Itron France SAS
Priority to EP09305257A priority Critical patent/EP2234198B1/fr
Priority to AT09305257T priority patent/ATE526703T1/de
Priority to ES09305257T priority patent/ES2374045T3/es
Publication of EP2234198A1 publication Critical patent/EP2234198A1/fr
Application granted granted Critical
Publication of EP2234198B1 publication Critical patent/EP2234198B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • 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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith

Definitions

  • the invention relates to a helical antenna support.
  • It relates more specifically to an internal antenna of a product communicating over the radio, in particular for counting products, such as metering modules for meters of fluid or electricity.
  • the antenna is soldered to the product's electronic board and must be properly oriented to match the operating radio frequency.
  • This support consists of four elements shaped in the form of cross and integral with a cylindrical base, these elements being rectangular plates and being provided with slots arranged at a precise pitch on their outer edge. Wedge-shaped elements are disposed between these elements and a conductive wire is thus disposed in the slots and against the corners to form an antenna. The corners are then slid off and the antenna is thus formed and supported by the support.
  • This mode of support supposes a manufacture of the antenna directly on the support. If an antenna already manufactured in the form of a helix is obtained, the support described in this patent is not suitable.
  • the invention solves this problem by proposing a helical antenna support for mounting an antenna already manufactured and ensuring a perfect hold of the turns of the antenna at a specific step.
  • the invention proposes a helical antenna support comprising at least three substantially rectangular support legs also distributed around a central column, the width of these support legs being such that their outer edge is disposed on a cylinder geometric section substantially equal to the internal section of the antenna, characterized in that it also comprises at least three comb elements having slots spaced a pitch identical to that of the turns of the antenna and intended to be fixed on each outer edge of said support legs, with their slots facing towards said support legs.
  • said comb members are shaped of a U-shaped section each U-branch comprises said slots and intended to be fitted on the outer edge of each branch of the support.
  • said comb elements comprise at least one locking pin in an orifice arranged on the edge outer of said support legs.
  • Said comb members may be connected to each said support leg by a hinge.
  • Said branches advantageously comprise an extra width of support of the lower turn of the antenna.
  • the support may comprise a guide orifice of the end of said antenna intended to be fixed on an electronic card.
  • the figure 1 is a perspective view of a helical antenna mounted on a support according to the invention.
  • FIGS. 2 to 5 illustrate the steps of mounting a helical antenna on a support according to the invention.
  • the figure 6 is a perspective view of a support according to the invention according to an alternative embodiment.
  • the invention relates to a support 1 of helical antenna 2, made of plastic, comprising at least three support legs 1A, 1B, 1C substantially rectangular also distributed around a central column 1D, the width of these support branches being such that their outer edge is arranged on a geometric cylinder of section substantially equal to the internal section of the antenna 2.
  • This support 1 also comprises at least three comb elements 2A, 2B, 2C, also made of plastic, having slots spaced at a pitch identical to that of the turns of the antenna 2 and intended to be fixed on each outer edge of the support legs 1A, 1B, 1C, with their slots facing the support legs.
  • the support comprises a guide orifice 3 of the end 2A of the antenna intended to be fixed on an electronic card 4.
  • the antenna 2 is disposed on this support by interlocking the latter inside the antenna, with an orientation such that the end 2A of the antenna comes to be introduced into the orifice 3 of the support.
  • the branches 1A, 1B, 1C advantageously comprise an over-width 5A, 5B, 5D of support of the lower turn of the antenna.
  • the antenna 2 is in the position shown on the figure 3 .
  • the comb members 2A, 2B, 2C are then attached to each outer edge of the support legs 1A, 1B, 1C, as shown in FIG. figure 4 .
  • These comb members 2A, 2B, 2C are formed of a U-shaped section each branch of the U comprises the slots 6 and intended to be fitted on the outer edge of each leg of the support 1A, 1B, 1C.
  • the slots 6 receive the turns of the antenna 2 which are thus held in place.
  • the comb members 2A, 2B, 2C each comprise at least one pin 7 snap into an orifice arranged on the outer edge of the support legs.
  • the three comb members have an identical length and are positioned at different levels on the support legs 1A, 1B and 1C. They are locked in position by snapping each peg 7 into the corresponding hole of the outer edge of the support legs.
  • the antenna 2 thus completely mounted on the support 1, as illustrated on the figure 5 , can be fixed on an electronic card 4 by means of centering and positioning pins 9, four in number, inserted for one into the card and placed thereon for others.
  • the comb members 2A, 2B, 2C can be connected to each support leg 1A, 1B, 1C, by a hinge, here consisting of a flexible tongue 10.

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  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

L'invention concerne un support (1) d'antenne hélicoïdale (2) comportant au moins trois branches de support (1A, 1B, 1C) sensiblement rectangulaires également réparties autour d'une colonne centrale (1D), la largeur de ces branches de support étant telle que leur bord externe est disposé sur un cylindre géométrique de section sensiblement égale à la section interne de l'antenne. Le support comporte également au moins trois éléments de peignes (2A, 2B, 2C) comportant des fentes (6) espacées d'un pas identique à celui des spires de l'antenne et destinées à être fixés sur chaque bord externe desdites branches de support (1A, 1B, 1C), avec leur fentes tournées vers lesdites branches de support.

Description

  • L'invention concerne un support d'antenne hélicoïdale.
  • Elle concerne plus précisément une antenne interne d'un produit communiquant par radio, en particulier pour des produits de comptage, tels que des modules de télérelevé de compteurs de fluide ou d'électricité.
  • L'antenne est soudée sur la carte électronique du produit et doit être correctement orientée pour s'accorder à la fréquence radio de fonctionnement.
  • Or elle peut être déformée lors de son montage sur la carte électronique et le pas des spires, qui est un paramètre important de fonctionnement, peut également varier dans le temps et dégrader les performances du produit.
  • Il a donc déjà été envisagé de la consolider au moyen d'un support.
  • Un support d'antenne hélicoïdale est décrit dans le brevet 5 406 693.
  • Ce support est constitué de quatre éléments conformés en forme de croix et solidaires d'une base cylindrique, ces éléments étant des plaques rectangulaires et étant pourvus de fentes disposées à un pas précis sur leur bord externe. Des éléments en forme de coin sont disposés entre ces éléments et un fil conducteur est ainsi disposé dans les fentes et contre les coins pour former une antenne. Les coins sont ensuite enlevés par coulissement et l'antenne est ainsi formée et supportée par le support.
  • Ce mode de support suppose une fabrication de l'antenne directement sur le support. Si l'on se procure une antenne déjà fabriquée en forme d'hélice, le support décrit dans ce brevet ne convient pas.
  • En effet, sa mise en place dans les fentes du support suppose soit une déformation par écartement de l'antenne pour emboîter les spires dans les fentes respectives, soit un vissage par rotation de l'antenne sur les fentes.
  • Or ces deux modes de montage sont consommateurs de temps et complexes, et surtout sont susceptibles de dégradation de l'antenne qui est constituée d'un fil relativement fin.
  • L'invention résout ce problème en proposant un support d'antenne hélicoïdale destiné au montage d'une antenne déjà fabriquée et assurant un maintien parfait des spires de l'antenne à un pas précis.
  • Pour ce faire, l'invention propose un support d'antenne hélicoïdale comportant au moins trois branches de support sensiblement rectangulaires également réparties autour d'une colonne centrale, la largeur de ces branches de support étant telle que leur bord externe est disposé sur un cylindre géométrique de section sensiblement égale à la section interne de l'antenne, caractérisé en ce qu'il comporte également au moins trois éléments de peignes comportant des fentes espacées d'un pas identique à celui des spires de l'antenne et destinées à être fixés sur chaque bord externe desdites branches de support, avec leur fentes tournées vers lesdites branches de support.
  • Grâce à l'invention, toute déformation et donc toute perte de fonctionnement de l'antenne sont évitées. Le montage de l'antenne sur une carte électronique ainsi que son orientation sont également facilités.
  • Selon un mode de réalisation préféré de l'invention, lesdits éléments de peigne sont conformées d'un profilé en U dont chaque branche du U comporte lesdites fentes et destinés à être emboîtés sur le bord externe de chaque branche du support.
  • Avantageusement, lesdits éléments de peigne comportent au moins un tenon d'encliquetage dans un orifice agencé sur le bord externe desdites branches de support.
  • Lesdits éléments de peigne peuvent être reliées à chaque dite branche de support par une charnière.
  • Lesdites branches comportent avantageusement une sur-largeur d'appui de la spire inférieure de l'antenne.
  • Le support peut comporter un orifice de guidage de l'extrémité de ladite antenne destinée à être fixée sur une carte électronique.
  • L'invention est décrite ci-après plus en détail à l'aide de figures ne représentant que des modes de réalisation préférés de l'invention.
  • La figure 1 est une vue en perspective d'une antenne hélicoïdale montée sur un support conforme à l'invention.
  • Les figures 2 à 5 illustrent les étapes de montage d'une antenne hélicoïdale sur un support conforme à l'invention.
  • La figure 6 est une vue en perspective d'un support conforme à l'invention selon une variante de réalisation.
  • Comme représenté sur la figure 1, l'invention concerne un support 1 d'antenne hélicoïdale 2, en matière plastique, comportant au moins trois branches de support 1A, 1B, 1C sensiblement rectangulaires également réparties autour d'une colonne centrale 1D , la largeur de ces branches de support étant telle que leur bord externe est disposé sur un cylindre géométrique de section sensiblement égale à la section interne de l'antenne 2.
  • Ce support 1 comporte également au moins trois éléments de peignes 2A, 2B , 2C, également en matière plastique, comportant des fentes espacées d'un pas identique à celui des spires de l'antenne 2 et destinées à être fixés sur chaque bord externe des branches de support 1A, 1B, 1C, avec leur fentes tournées vers les branches de support.
  • Une fois l'antenne 2 monté sur le support 1 comme illustré sur la figure 1, le support comporte un orifice de guidage 3 de l'extrémité 2A de l'antenne destinée à être fixée sur une carte électronique 4.
  • Les différentes pièces sont plus visibles sur les figures 2 à 5, qui illustrent les étapes de montage d'une antenne 2 sur un tel support.
  • Comme représenté sur la figure 2, l'antenne 2 est disposée sur ce support par emboîtement de ce dernier à l'intérieur de l'antenne, avec une orientation telle que l'extrémité 2A de l'antenne vienne s'introduire dans l'orifice 3 du support.
  • Les branches 1A, 1B, 1C, comportent avantageusement une sur-largeur 5A, 5B, 5D d'appui de la spire inférieure de l'antenne.
  • Après cette première étape de montage, l'antenne 2 est dans la position représentée sur la figure 3.
  • Les éléments de peigne 2A, 2B, 2C sont ensuite fixés sur chaque bord externe des branches de support 1A, 1B, 1C, comme illustré sur la figure 4.
  • Ces éléments de peigne 2A, 2B, 2C sont conformés d'un profilé en U dont chaque branche du U comporte les fentes 6 et destinés à être emboîtés sur le bord externe de chaque branche du support 1A, 1B, 1C. Les fentes 6 viennent recevoir les spires de l'antenne 2 qui sont ainsi maintenues en place.
  • Pour leur fixation sur chaque bord externe des branches de support 1A, 1B, 1C, les éléments de peigne 2A, 2B, 2C comportent chacun au moins un tenon 7 d'encliquetage dans un orifice agencé sur le bord externe des branches de support. Les trois éléments de peigne ont une longueur identique et ils sont positionnés à des niveaux différents sur les branches de support 1A, 1B et 1C. Ils sont bloqués en position par encliquetage de chaque tenon 7 dans l'orifice correspondant du bord externe des branches de support.
  • L'antenne 2 ainsi complètement montée sur le support 1, comme illustrée sur la figure 5, peut être fixée sur une carte électronique 4 au moyen de pions de centrage et de positionnement 9, au nombre de quatre, insérés pour les uns dans la carte et posés sur celle-ci pour d'autres.
  • Selon une variante représentée sur la figure 6, les éléments de peigne 2A, 2B, 2C peuvent être reliées à chaque branche de support 1A, 1B, 1C, par une charnière, ici constitué d'une languette flexible 10.

Claims (6)

  1. Support (1) d'antenne hélicoïdale (2) comportant au moins trois branches de support (1A, 1B, 1C) sensiblement rectangulaires également réparties autour d'une colonne centrale (1D), la largeur de ces branches de support étant telle que leur bord externe est disposé sur un cylindre géométrique de section sensiblement égale à la section interne de l'antenne, caractérisé en ce qu'il comporte également au moins trois éléments de peignes (2A, 2B, 2C) comportant des fentes (6) espacées d'un pas identique à celui des spires de l'antenne et destinées à être fixés sur chaque bord externe desdites branches de support (1A, 1B, 1C), avec leur fentes tournées vers lesdites branches de support.
  2. Support selon la revendication 1, caractérisé en ce que lesdits éléments de peigne (2A, 2B, 2C) sont conformées d'un profilé en U dont chaque branche du U comporte lesdites fentes (6) et destinés à être emboîtés sur le bord externe de chaque branche du support (1A, 1B, 1C).
  3. Support selon l'une des revendications précédentes, caractérisé en ce que lesdits éléments de peigne (2A, 2B, 2C) comportent au moins un tenon (7) d'encliquetage dans un orifice agencé sur le bord externe desdites branches de support (1A, 1B, 1C).
  4. Support selon l'une des revendications précédentes, caractérisé en ce que lesdits éléments de peigne (2A, 2B, 2C) sont reliées à chaque dite branche de support par une charnière (10).
  5. Support selon l'une des revendications précédentes, caractérisé en ce que lesdites branches de support (1A, 1B, 1C) comportent une sur-largeur (5A, 5B, 5C) d'appui de la spire inférieure de l'antenne.
  6. Support selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un orifice (3) de guidage de l'extrémité (2A) de ladite antenne destinée à être fixée sur une carte électronique (4).
EP09305257A 2009-03-24 2009-03-24 Support d'antenne hélicoïdale Not-in-force EP2234198B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09305257A EP2234198B1 (fr) 2009-03-24 2009-03-24 Support d'antenne hélicoïdale
AT09305257T ATE526703T1 (de) 2009-03-24 2009-03-24 Halterung für spiralantenne
ES09305257T ES2374045T3 (es) 2009-03-24 2009-03-24 Soporte de antena helicoidal.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09305257A EP2234198B1 (fr) 2009-03-24 2009-03-24 Support d'antenne hélicoïdale

Publications (2)

Publication Number Publication Date
EP2234198A1 true EP2234198A1 (fr) 2010-09-29
EP2234198B1 EP2234198B1 (fr) 2011-09-28

Family

ID=40996788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09305257A Not-in-force EP2234198B1 (fr) 2009-03-24 2009-03-24 Support d'antenne hélicoïdale

Country Status (3)

Country Link
EP (1) EP2234198B1 (fr)
AT (1) ATE526703T1 (fr)
ES (1) ES2374045T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102769168A (zh) * 2011-05-03 2012-11-07 上海保隆汽车科技股份有限公司 一种螺旋天线
CN103811852A (zh) * 2012-11-14 2014-05-21 北京信威通信技术股份有限公司 一种四臂螺旋天线及其制作方法
CN105896021A (zh) * 2014-10-14 2016-08-24 北京空间飞行器总体设计部 星载螺旋天线
WO2017028955A1 (fr) * 2015-08-20 2017-02-23 Diehl Metering Gmbh Système d'antenne destiné à la réception et/ou à la transmission de signaux radioélectriques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406693A (en) * 1992-07-06 1995-04-18 Harada Kogyo Kabushiki Kaisha Method of manufacturing a helical antenna for satellite communication
US6246379B1 (en) * 1999-07-19 2001-06-12 The United States Of America As Represented By The Secretary Of The Navy Helix antenna
US20040263413A1 (en) * 2003-06-25 2004-12-30 Amphenol-T&M Antennas Multiple pitch antenna assembly
WO2005088765A1 (fr) * 2004-03-10 2005-09-22 Nippon Antena Kabushiki Kaisha Element d’antenne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406693A (en) * 1992-07-06 1995-04-18 Harada Kogyo Kabushiki Kaisha Method of manufacturing a helical antenna for satellite communication
US6246379B1 (en) * 1999-07-19 2001-06-12 The United States Of America As Represented By The Secretary Of The Navy Helix antenna
US20040263413A1 (en) * 2003-06-25 2004-12-30 Amphenol-T&M Antennas Multiple pitch antenna assembly
WO2005088765A1 (fr) * 2004-03-10 2005-09-22 Nippon Antena Kabushiki Kaisha Element d’antenne

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102769168A (zh) * 2011-05-03 2012-11-07 上海保隆汽车科技股份有限公司 一种螺旋天线
CN103811852A (zh) * 2012-11-14 2014-05-21 北京信威通信技术股份有限公司 一种四臂螺旋天线及其制作方法
CN103811852B (zh) * 2012-11-14 2017-08-11 北京信威通信技术股份有限公司 一种四臂螺旋天线及其制作方法
CN105896021A (zh) * 2014-10-14 2016-08-24 北京空间飞行器总体设计部 星载螺旋天线
WO2017028955A1 (fr) * 2015-08-20 2017-02-23 Diehl Metering Gmbh Système d'antenne destiné à la réception et/ou à la transmission de signaux radioélectriques
DE102015010917A1 (de) * 2015-08-20 2017-02-23 Diehl Metering Gmbh Antenneneinrichtung zum Empfangen und/oder Übertragen von Funksignalen

Also Published As

Publication number Publication date
EP2234198B1 (fr) 2011-09-28
ES2374045T3 (es) 2012-02-13
ATE526703T1 (de) 2011-10-15

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