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EP0245649B1 - Dispositif de protection pour antennes paraboliques - Google Patents

Dispositif de protection pour antennes paraboliques Download PDF

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Publication number
EP0245649B1
EP0245649B1 EP87105097A EP87105097A EP0245649B1 EP 0245649 B1 EP0245649 B1 EP 0245649B1 EP 87105097 A EP87105097 A EP 87105097A EP 87105097 A EP87105097 A EP 87105097A EP 0245649 B1 EP0245649 B1 EP 0245649B1
Authority
EP
European Patent Office
Prior art keywords
parts
shell
spherical
equatorial plane
hood
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.)
Expired - Lifetime
Application number
EP87105097A
Other languages
German (de)
English (en)
Other versions
EP0245649A2 (fr
EP0245649A3 (en
Inventor
Arnold Erber
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.)
Kunststoffwerk Katzbach & Co Kunststoffverar GmbH
Original Assignee
KATZBACH KUNSTSTOFFWERK
Kunststoffwerk Katzbach & Co Kunststoffverarbeitungs-Kg GmbH
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 KATZBACH KUNSTSTOFFWERK, Kunststoffwerk Katzbach & Co Kunststoffverarbeitungs-Kg GmbH filed Critical KATZBACH KUNSTSTOFFWERK
Priority to AT87105097T priority Critical patent/ATE59249T1/de
Publication of EP0245649A2 publication Critical patent/EP0245649A2/fr
Publication of EP0245649A3 publication Critical patent/EP0245649A3/de
Application granted granted Critical
Publication of EP0245649B1 publication Critical patent/EP0245649B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome

Definitions

  • the invention relates to a device for protecting parabolic antennas in the form of an essentially spherical shell-shaped hood enclosing the antenna.
  • aperture radiators or area radiators are used for radiating and receiving electromagnetic vibrations, in which a wave is emitted in the opening plane of the bowl-shaped antenna.
  • the simplest form is the parabolic antenna, which is extremely powerful, but is at risk of snow and ice crystals being deposited in the parabolic dish under the appropriate weather conditions, the crystals of which lead to reflection. This sometimes significantly disrupts antenna operation.
  • Large antenna systems e.g. from WO-A 8 201 278 enclose such parabolic antennas with a spherical shell-like housing, the construction of which, however, is complex and cannot be transferred to the cladding of a simple, comparatively small parabolic antenna.
  • the invention provides that the hood consists of a number of equally large spherical-triangular shell parts, which in turn form one Equatorial plane perpendicular to its axis and possibly divided into further planes parallel to this plane, these further division planes being arranged at the same distance from both sides of the equatorial plane.
  • the measure according to the invention creates the structural conditions for the design of such a covering for parabolic antennas, on the basis of which the hood can be manufactured in a rational manner.
  • this is a basic requirement for the further spread of such antennas.
  • the roughly spherical-shell-shaped shape of the hood is broken down into spherical-shell-shaped shell parts, which, however, generally require an excessively high production outlay due to their size. Therefore, each shell part is broken down into further individual elements, although the arrangement ensures that only slightly differently shaped parts are obtained.
  • each shell part in its further embodiment, is divided into four parts, three of which are each of the same shape, by three parting planes, to design the entire hood from two different components. It is obvious that a highly efficient production is then guaranteed, which enables the wide use of such claddings and thus the parabolic antennas receiving them.
  • Each shell part consists of two larger parts colliding in the equatorial plane, each with four corners and two further parts, which have the tips of the spherical-shell parts and basically have a triangular shape.
  • Such components can be manufactured in large numbers and / or kept in stock until they are called up for use.
  • a particularly simple embodiment of the invention is characterized in that each spherical-shell-shaped shell part is only curved around an axis lying in the equatorial plane. In the equatorial plane, the outer contour is a straight line. If such shell parts are put together, the hood is given a polygonal shape when viewed from above. Training as an octagon is advantageous. In the case of larger hoods, twelve-sided or hexagonal shapes are also attached, without this having to be a limitation.
  • each shell part has a curvature corresponding to a spherical surface.
  • Such a shell part then forms a spherical triangle of a spherical shell, and the hood is then essentially spherical shell-shaped. Which embodiment is preferred depends entirely on the circumstances of the individual case.
  • each shell part and the shell parts in turn can be assembled in different ways.
  • the invention first provides that the shell parts and their parts are joined together by a tongue and groove connection.
  • This training aims at the idea explained above to produce the hood from the smallest possible number of individual parts. If only tongue and groove connections are used on all abutting edges of the parts, three different individual parts are required to design such a ball, because one of the two middle parts of each spherical shell part then contains a groove on the adjacent edge, while on the other part a spring is formed.
  • the connection can also be carried out in such a way that the shell parts and their partial elements have a groove on their circumference, a connecting fold being inserted into the mutually directed grooves of two parts lying against one another.
  • Mixed forms of such connections can of course also be provided in order to make it possible to achieve the minimum number of two different sub-elements for the construction of a hood if each shell part consists of four parts.
  • the shell parts consist of a foamed plastic with an outer support made of a fiber-reinforced plastic. This allows the construction to be kept extremely light, while at the same time achieving maximum strength. At the same time, high resistance to weather influences is achieved. In any case, such a hood is free of metallic components that could interfere with antenna operation. Any other plastic can also take the place of a foamed plastic. Possibly. the outer surface can be so dense and the strength of the art material so large that the outer fiber-reinforced synthetic resin pad can be dispensed with entirely. It is within the scope of the invention to manufacture the shell parts from fiber-reinforced plastic.
  • the shell parts adjacent to the poles form a unit in the form of a spherical shell section.
  • the number of individual parts of the spherical shell-shaped hood is significantly reduced and, at the same time, the strength is increased in that the regions of the sphere near the poles each form a unit.
  • the shell parts and the two spherical sections can in turn be joined together by a tongue and groove connection.
  • the hood 1 consists of a spherical shell-shaped wall, which in the embodiment shown here is divided into eight shell parts 2. These are arranged around the imaginary axis 3. In the equatorial plane of this ball neck, each shell part 2 has an angle 4 of 45 ° , as can be seen in FIG. 3.
  • each of the spherical-shell-shaped shell parts 2 is subdivided into a plurality of parting planes, one of which is the equatorial plane 5 of the approximated ball. At an equal distance 6 from this equatorial plane 5 there are two further division planes 7 on both sides. As a result, the shell part 2 is broken down into four individual parts.
  • each shell part 2 is only curved in one plane, the axis of curvature in the equatorial plane 5 lies.
  • the plane of curvature also contains axis 3 of the sphere.
  • the outer surface 10 of each shell part 2 is flat, as can be seen in FIG. 3. Therefore the hood 1 forms an octagon here. The .
  • each shell part 2 has an outer surface 10 which is curved in accordance with a spherical surface, ie the outer surface 10 of shell parts 2 is also curved in the equatorial plane according to FIG. 6.
  • each spherical-shell-shaped shell part 2 have a tongue 13 on the edge 12 axially adjacent to the part 9, which engages in a groove 14 on the speaking edge 15 of the adjacent outer shell part 9.
  • each part 8 is likewise provided with a groove 17, while the opposite side edge 18 has a corresponding groove 19.
  • one side edge 20 of the parts 9 is provided with a groove 21, whereas the opposite side edge 22 carries a tongue 23.
  • the upper of the partial elements 8 has a groove 26 on the edge 25 lying in the equatorial plane 5, while the lower partial element 8 'carries a tongue 27 on the corresponding edge 25, which engages in the groove 26 of the sub-element 8 is determined.
  • This feature alone distinguishes the two sub-elements 8 and 8 'from one another.
  • both parts 8 could each have a groove 26 on this side edge 25 facing each other, into which a connecting fold would then be inserted.
  • the two inner sub-elements 8 would be identical.
  • the shell parts 2 of the two embodiments of the hoods 1 consist of a wall 28 made of foamed plastic, on the outside of which a support layer 29 made of a fiber-reinforced synthetic resin lies in a material connection.
  • the invention is directed to the basic design of a hood enclosing a parabolic antenna, the reproduction of fastening elements and insertion openings for the wearer of the parabolic antenna to be accommodated by the hood 1 has been dispensed with.
  • each shell part 2 has been left as a unit in the form of a spherical shell 30, so that there is a spherical shell 30 or spherical cap on the two poles of the sphere.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (9)

1. Dispositif de protection pour antennes paraboliques, constitué à la manière d'un capotage sensiblement en forme de coque sphérique entourant l'antenne, caractérisé en ce que le capotage (1) se compose d'un certain nombre de parties de coque (2) en forme de fuseau et de grandeur identique, qui pour leur part sont subdivisées selon un plan équatorial (5) perpendiculaire à l'axe (3) de la sphère et, le cas échéant, selon d'autres plans (7) parallèles au précédent, ces autres plans de partage (7) étant agencés, à distance égale (6), de chaque côté du plan équatorial (5).
2. Dispositif selon la revendication 1, caractérisé en ce que chaque partie de coque (2) est subdivisée, par trois plans de partage (5, 7), en quatre parties (8, 9) de forme identique deux à deux.
3. Dispositif selon la revendication 1 et 2, caractérisé en ce que chaque partie de coque (2) en forme de fuseau n'est courbée qu'autour d'un seul axe contenu dans le plan équatorial.
4. Dispositif selon la revendication 1 et 2, caractérisé en ce que chaque partie de coque (2) présente une courbure correspondant à une surface sphérique.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les parties de coque (9) voisines des pôles, constituent un ensemble se présentant sous la forme d'une calotte sphérique (30).
6. Dispositif selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que les parties de coque (2) et leurs parties constitutives (8, 9), sont assemblées par une liaison à rainure et languette.
7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que les parties de coque (2) et les deux calottes sphériques (30) sont assemblées par une liaison à rainure et languette.
8. Dispositif selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce que les parties de coque (2) et leurs parties constitutives (8, 9), présentent une rainure sur leur périphérie, et en ce qu'une languette de liaison, est logée dans les rainures se faisant face, de deux parties adjacentes.
9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la paroi (28) des parties de coque (2) est réalisée en une matière plastique mousse avec une couche externe de revêtement (29) en une matière plastique armée de fibres.
EP87105097A 1986-05-09 1987-04-07 Dispositif de protection pour antennes paraboliques Expired - Lifetime EP0245649B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105097T ATE59249T1 (de) 1986-05-09 1987-04-07 Vorrichtung zum schutz von parabolantennen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3615645 1986-05-09
DE19863615645 DE3615645A1 (de) 1986-05-09 1986-05-09 Vorrichtung zum schutz von parabolantennen

Publications (3)

Publication Number Publication Date
EP0245649A2 EP0245649A2 (fr) 1987-11-19
EP0245649A3 EP0245649A3 (en) 1988-01-27
EP0245649B1 true EP0245649B1 (fr) 1990-12-19

Family

ID=6300463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105097A Expired - Lifetime EP0245649B1 (fr) 1986-05-09 1987-04-07 Dispositif de protection pour antennes paraboliques

Country Status (5)

Country Link
EP (1) EP0245649B1 (fr)
AT (1) ATE59249T1 (fr)
DE (2) DE3615645A1 (fr)
ES (1) ES2023136B3 (fr)
GR (1) GR3001217T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881884A1 (fr) * 1987-01-22 2006-08-11 Gerard Bony "radome adapte pour la protection d'une antenne hyperfrequence"
FR3025657B1 (fr) * 2014-09-08 2018-01-26 Ineo Defense Radome spherique de protection d'une antenne de telecommunication et antenne associee

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427626A (en) * 1965-11-12 1969-02-11 Whittaker Corp Rigid sectional radome and method for erecting
DE3037727A1 (de) * 1980-10-06 1982-05-19 G + H Montage Gmbh, 6700 Ludwigshafen Fassadenelement zum schutz funktechnischer anlagen
DE3037726A1 (de) * 1980-10-06 1982-05-19 G + H Montage Gmbh, 6700 Ludwigshafen Verkleidung zum schutz funktechnischer anlagen, insbesondere von antennen

Also Published As

Publication number Publication date
ATE59249T1 (de) 1991-01-15
DE3615645A1 (de) 1987-11-12
DE3766748D1 (de) 1991-01-31
GR3001217T3 (en) 1992-07-30
EP0245649A2 (fr) 1987-11-19
EP0245649A3 (en) 1988-01-27
ES2023136B3 (es) 1992-01-01

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