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EP0304656B1 - Antenne directionnelle pour systèmes relais - Google Patents

Antenne directionnelle pour systèmes relais Download PDF

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Publication number
EP0304656B1
EP0304656B1 EP88112148A EP88112148A EP0304656B1 EP 0304656 B1 EP0304656 B1 EP 0304656B1 EP 88112148 A EP88112148 A EP 88112148A EP 88112148 A EP88112148 A EP 88112148A EP 0304656 B1 EP0304656 B1 EP 0304656B1
Authority
EP
European Patent Office
Prior art keywords
lever
directional antenna
relay systems
systems according
mast
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
EP88112148A
Other languages
German (de)
English (en)
Other versions
EP0304656A1 (fr
Inventor
Friedrich Dipl.-Ing. Riedl (Fh)
Gerhard Dipl.-Ing. Schmieg (Fh)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to NO883618A priority Critical patent/NO172916C/no
Publication of EP0304656A1 publication Critical patent/EP0304656A1/fr
Application granted granted Critical
Publication of EP0304656B1 publication Critical patent/EP0304656B1/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
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
    • H01Q3/18—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is movable and the reflecting device is fixed
    • 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
    • H01Q1/125—Means for positioning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal

Definitions

  • the invention relates to a directional radio antenna consisting of a reflector and a radiator, with a receiving element for the radiator, the receiving element having a shaft which receives the radiator at one end and with a mast holder carrying the reflector, which is provided with a central bore .
  • Antennas intended for military radio relay systems are often used in mobile operation.
  • a directional radio antenna consisting of reflector and radiator can be dismantled into its individual parts, the individual parts then having to be easily assembled for use in a short time.
  • a mirror antenna with a tubular holder is known from CH-A-659 545, the holder having a shaft at its front end, a primary radiator screwed into the end face and to which a reflector is attached.
  • the holder formed with a central bore for the feed line of the primary radiator is provided at its rear end with a clamp, so that the holder serves, in addition to receiving the primary radiator and the reflector, also for fastening the mirror antenna to a support.
  • the invention has for its object to build a directional antenna of the type mentioned so that the antenna can be disassembled for transport and storage purposes and that for the application in a short time a problem-free assembly of the individual parts of the antenna and a simple attachment of such an antenna a mast is possible.
  • a directional radio antenna of the type mentioned according to the invention in that the mast bracket and the receiving element are designed as separate holding means, that the shaft of the receiving element is connected at its other end via a stop with a plug which is connected to the Stop inserted in the central bore of the mast bracket and is formed at its free end with a pivotable from a horizontal position by about 90 ° to a stop of the mast bracket in a vertical position with a fastener and that the mast bracket with a in the longitudinal direction of the central bore of outside to the bore extending middle guide slot for the pivotable lever and is provided with at least one bayonet lock for locking the lever and for releasably connecting the receiving element to the mast bracket.
  • Such an antenna is constructed in such a way that the mast bracket with the reflector on the one hand and the radiator with its separate receiving element on the other hand each form independent units, the radiator with its receiving element being designed as an insert which is simple to insert into the mast bracket, so that the entire antenna with the Holding means for the spotlight and the reflector and for the mast attachment consists of two detachably connectable units.
  • the antenna can easily be disassembled into its two units, particularly without the aid of tools, so that these units of the antenna can be transported separately and can be stored in a space-saving manner, for example in cabins.
  • a particular advantage is that the antenna units can easily be assembled by hand and without tools by a single person and can be mounted on a mast.
  • Such antennas are often required to be able to change the direction of polarization of the antenna.
  • a development of the invention is therefore based on the object of making it possible to change the polarization of the antenna in a simple manner.
  • a directional radio antenna is therefore designed in such a way that the mast holder is provided with two bayonet locks which are symmetrical with respect to the central guide slot Arranged lateral guide slots are formed for the lever, which extend perpendicularly to the stop of the middle guide slot and aligned with one another and are angled after 45 ° at the end by approximately 90 °, so that the receiving element with the radiator moves from a bayonet lock when the lever is moved the other bayonet lock is rotatable by 90 ° in the central hole.
  • the radiator can be fixed in two positions offset by 90 ° from one another, so that the antenna can be brought into a horizontal and a vertical polarization position.
  • the swivel lever thus serves simultaneously as a locking element and as a switching element when changing polarization.
  • the bend of the lateral guide slots is provided with a bevel at the end.
  • the lever can be fixed in its end positions at an angle to the longitudinal axis of the receiving element, so that the receiving element is pulled firmly and without play against the stop. This also largely prevents the fastening element from loosening on the swivel lever.
  • the directional radio antenna in Fig. 1 consists in a manner known per se of a reflector 1, e.g. from a relatively flat, circular parabolic reflector, and a radiator 2, e.g. is designed as a broadband slot dipole exciter with an auxiliary reflector.
  • the reflector 1 can be made of perforated, appropriately stiffened aluminum sheet to reduce the visibility and the wind load and is connected in its central area to a mast bracket 3 consisting of an aluminum casting, which contains the mast attachment on the back and receives the spotlight 2 from the front.
  • a separate receiving element 4 is provided, which is designed as an insert that can be inserted into the mast holder 3.
  • the antenna can also be provided with a protective bracket 5 which can be folded out from the reflector 1 and runs from the radiator 2 to the edge of the reflector, e.g. made of glass fiber reinforced plastic material, for particularly critical applications, e.g. to reject branches.
  • a protective bracket 5 which can be folded out from the reflector 1 and runs from the radiator 2 to the edge of the reflector, e.g. made of glass fiber reinforced plastic material, for particularly critical applications, e.g. to reject branches.
  • the receiving element 4 for the radiator 2 has an elongated shaft 6 with a longitudinal bore 7 for inserting the radiator and is formed at its other end with a plug 9 provided with an aligned longitudinal bore 8 for insertion into the mast holder 3.
  • the receiving element 4 has a Collar 10 on, which has a larger diameter than the plug pin and acts as a stop when inserting the receiving element into the mast bracket 3.
  • a lever 11 is pivotally mounted, above the central axis of the receiving element, by inserting a pivot axis 12 in FIG. 2 perpendicular to the plane of the drawing and in FIG.
  • the lever 11 extends - as can be clearly seen in FIG. 2 - bent in the longitudinal direction in such a way that in the horizontal position according to FIG. 2 its free end is inclined towards the central axis of the receiving element 4.
  • the lever 11 is formed with a ball knob 14 at its free end.
  • a cross grip nut 15 is provided as a fastening element for fixing the pivotable lever in the mast holder, which nut can be screwed onto an external thread 16 of the lever.
  • a retaining ring 17 is also provided, which allows the cross grip nut to be fixed to the ball knob during assembly and disassembly of the antenna or the fastening device, so that the cross grip nut cannot assume a disruptive position during these operations .
  • the mast bracket 3 consists of a head 18 with a central bore 19 for inserting the receiving element 4, a central guide slot 20 for the pivotable lever 11 which extends in the longitudinal direction of the central bore from the outside to the bore, and a diameter shoulder corresponding to the collar 10 of the receiving element 4 21 as a stop when inserting the receiving element, and from a disc 22 arranged on the end face of the central bore 19 perpendicular to the longitudinal axis of the bore, with which the reflector 1 is connected in a central region, for example screwed or riveted, and laterally and perpendicular to the longitudinal axis of the Bore 19 projecting from the head 18 mast connector 23 with which the mast bracket 3 plugged onto a mast 24 (FIG.
  • the receiving element 4 When assembling the antenna, the receiving element 4 is inserted with the radiator 2 up to the stop of the collar 10 on the diameter shoulder 21 into the central bore 19 of the mast holder 3 carrying the reflector 1, the lever 11 expediently in the horizontal position according to FIG 17 fixed cross grip nut 15 is located.
  • the lever 11 protruding from the rear of the mast holder is moved from its horizontal position via the central guide slot 20 by about 90 ° to the stop 30 into a vertical position and then - depending on the polarization of the antenna - Swiveled through 45 ° to the right or left into the lateral guide slots 28, 29, ie the receiving element 4 is rotated through 45 ° in the central bore 19 with the lever, which cannot be pivoted in the direction of the lateral guide slots. Then the lever 11 is pivoted into the corresponding bend 31 or 32 and inclined into the 30 ° slope 33 or 34. Now the cross handle nut 15 are tightened.
  • the receiving element 4 of the radiator 2 is firmly connected to the mast holder 3 and thus to the holder of the reflector 1.
  • the collar 10 of the receiving element 4 is pulled firmly and without play against the diameter shoulder 21 of the central bore 19.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (11)

  1. Antenne directionnelle constituée par un réflecteur (1) et un émetteur (2), comportant un élément (4) servant à loger l'émetteur (2) et possédant une tige (6) qui reçoit, à l'une de ses extrémités, l'émetteurs (2), et comportant un support (3) pour un mât, qui porte le réflecteur (1) et est pourvu d'un perçage central (19), caractérisée par le fait que le support (3) pour le mât et l'élément de logement (4) sont agencés sous la forme de moyens de retenue séparés, que la tige (6) de l'élément de logement (4) est raccordée, à son autre extrémité, au moyen d'une butée (10) à un embout enfichable (9) qui est enfiché, jusqu'à la butée (10), dans le perçage central (19) du support (3) du mât et comporte, à son extrémité libre, un levier (11) qui peut pivoter sur environ 90° depuis une position horizontale jusqu'à une butée (30) du support (3) du mât, dans une position verticale, et comporte un élément de fixation (15), et que le support (3) du mât comporte une fente de guidage médiane (20), qui s'étend dans la direction longitudinale du perçage central (19) de l'extérieur jusqu'à ce perçage, pour le levier pivotant (11), et au moins un système de fermeture à baïonnette (26,27) servant à verrouiller le levier (11) et à réunir de façon amovible l'élément de logement (4) au support (3) du mât.
  2. Antenne directionnelle suivant la revendication 1, caractérisée par le fait que le support (3) du mât est formé par une pièce moulée en aluminium.
  3. Antenne directionnelle suivant la revendication 1 ou 2, caractérisée par le fait que le support (3) du mât est constitué par une tête (18), qui possède le perçage central (19) et la fente médiane de guidage (20), par un disque (22) disposé sur une face frontale du perçage central (19) perpendiculairement à l'axe longitudinal du perçage pour la fixation du réflecteur (1), et par une tubulure de mât (23), qui fait saillie latéralement et perpendiculairement à l'axe longitudinal du perçage (19).
  4. Antenne directionnelle suivant les revendications 1 à 3, caractérisée en ce que le support (3) du mât est pourvu de deux systèmes de fermeture à baïonnette (26,27), qui sont formés par deux fentes latérales de guidage (28,29) prévues pour le levier (11), ménagées symétriquement par rapport à la fente médiane de guidage (20) et qui s'étendent perpendiculairement et en étant réciproquement a lignées, à partir de la butée (30) de la fente médiane de guidage (20) et sont, après un décalage de 45°, recourbées environ à 90°, à leur extrémité, en sorte que l'élément de logement (4) équipé de l'émetteur (2) peut pivoter de 90° dans le perçage central (19) lorsque le levier (11) se déplace depuis un système de fermeture à baïonnette (26) dans l'autre système de fermeture à baïonnette (27).
  5. Antenne directionnelle suivant la revendication 4, caractérisée par le fait que la partie coudée (31,32) des fentes latérales de guidage (28,29) comporte un biseau (33,34) à leur extrémité.
  6. Antenne directionnelle suivant la revendication 4 ou 5, caractérisée par le fait que la position d'extrémité du levier (11) dans les parties coudées (31,32) est désignée par les caractéristiques (H,V) correspondant à la polarisation respective de l'antenne.
  7. Antenne directionnelle suivant l'une des revendications précédentes, caractérisé par le fait que la butée pour l'enfichage de l'élément de logement (4) dans le perçage central (19) du support (3) du mât est formée par un collet (10) de l'élément de logement et par une partie étagée correspondante (41) du perçage central.
  8. Antenne directionnelle suivant l'une des revendications précédentes, caractérisée par le fait que l'élément de fixation (15) du levier (11) est constitué par un manchon à croisillon vissable sur un filetage extérieur (16) du levier.
  9. Antenne directionnelle suivant l'une des revendications précédentes, caractérisé par le fait que le levier (11) comporte, pour sa manipulation, un bouton de forme sphérique (14) à son extrémité libre.
  10. Antenne directionnelle suivant la revendication 9, caractérisé par le fait qu'un anneau de retenue (17) pour l'élément de fixation est prévu sur la face du bouton de forme sphérique (14), tournée vers l'élément de fixation (15).
  11. Antenne directionnelle suivant l'une des revendications précédentes, caractérisé par le fait que le levier (11) est coudé dans sa direction longitudinale de sorte que, dans la position horizontale, son extrémité libre est inclinée en direction de l'axe médian de l'élément de logement (4).
EP88112148A 1987-08-12 1988-07-27 Antenne directionnelle pour systèmes relais Expired - Lifetime EP0304656B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO883618A NO172916C (no) 1987-08-12 1988-08-12 Radiolinjeantenne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3726880 1987-08-12
DE3726880 1987-08-12

Publications (2)

Publication Number Publication Date
EP0304656A1 EP0304656A1 (fr) 1989-03-01
EP0304656B1 true EP0304656B1 (fr) 1992-09-30

Family

ID=6333604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112148A Expired - Lifetime EP0304656B1 (fr) 1987-08-12 1988-07-27 Antenne directionnelle pour systèmes relais

Country Status (3)

Country Link
EP (1) EP0304656B1 (fr)
DE (2) DE3875033D1 (fr)
NO (1) NO172918C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021159A1 (fr) * 1991-05-13 1992-11-26 Thomson Consumer Electronics S.A. Systeme d'antenne pour ondes radio
GB2292481B (en) * 1994-08-17 1998-10-21 Continental Microwave Technolo Microwave radio antenna assembly
IT1275306B (it) * 1995-06-05 1997-08-05 Sits Soc It Telecom Siemens Sistema di regolazione fine del puntamento d'antenna secondo tre assi ortogonali
US8760361B2 (en) 2009-09-29 2014-06-24 Andrew Llc Method and apparatus for fine polarization reflector antenna adjustment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1360242A (fr) * 1963-03-23 1964-05-08 Aerazur Constr Aeronaut Antenne à réflecteur en éléments à montage et démontage rapides
NL180623C (nl) * 1977-01-12 1987-08-17 Philips Nv Belichter voor een antenne.
DE2812341A1 (de) * 1978-03-21 1979-09-27 Siemens Ag Hohlleiterstrahler
CH659545A5 (en) * 1983-05-11 1987-01-30 Nikola Kevic Reflector antenna

Also Published As

Publication number Publication date
NO172918B (no) 1993-06-14
DE3875559D1 (de) 1992-12-03
NO883617D0 (no) 1988-08-12
EP0304656A1 (fr) 1989-03-01
NO172918C (no) 1993-09-22
NO883617L (no) 1989-02-13
DE3875033D1 (de) 1992-11-05

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