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EP0304656A1 - Antenne directionnelle pour systèmes relais - Google Patents

Antenne directionnelle pour systèmes relais Download PDF

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Publication number
EP0304656A1
EP0304656A1 EP88112148A EP88112148A EP0304656A1 EP 0304656 A1 EP0304656 A1 EP 0304656A1 EP 88112148 A EP88112148 A EP 88112148A EP 88112148 A EP88112148 A EP 88112148A EP 0304656 A1 EP0304656 A1 EP 0304656A1
Authority
EP
European Patent Office
Prior art keywords
mast
lever
receiving element
antenna according
holder
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
EP88112148A
Other languages
German (de)
English (en)
Other versions
EP0304656B1 (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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp 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 holder supporting the reflector for attachment to a mast and a receiving element for the radiator.
  • 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.
  • the invention is therefore based on the object to build a directional radio antenna of the type mentioned so that a disassembly of the antenna for transport and storage purposes and 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 to one 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 receiving element consists of an insert which can be inserted into a central bore of the mast bracket up to a stop, which is on its end that can be inserted into the mast holder with a horizontal position of approximately 90 ° up to a stop in a vertical position pivotable lever is designed with a fastening element, and that the mast holder is provided with a central guide slot for the pivotable lever, which extends in the longitudinal direction of the central bore from the outside to the bore, and with at least one bayonet lock for locking the lever and for releasably connecting the receiving element to the mast holder is.
  • Such an antenna is constructed in such a way that the bracket for mast mounting 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 be disassembled into its individual parts without any further and above all without the use of tools, so that the two parts of the antenna can be transported separately and in a space-saving manner, e.g. can be stored in cabins.
  • a particular advantage is that the antenna can easily be assembled by hand and without tools by a single person and 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 for the lever are formed, which extend perpendicularly from the center guide slot at the stop of the central guide slot and are 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 rear 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 can be screwed onto an external thread 16 of the lever.
  • a retaining ring 17 is also provided, which enables 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 disturbing 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 extending in the longitudinal direction of the central bore from the outside to the bore for the pivotable lever 11 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 spigot 23, with which the mast bracket 3 on a mast 24 (Fig.1) and to which it is clamped by a screw 25.
  • the lateral guide slots extend perpendicularly to the stop 30 of the central guide slot and are aligned with one another and are angled after 45 ° on the circumference of the head 18 by approximately 90 °, the respective bends 31 and 32 ending at an incline 33 and 34 30 ° against a vertical to the longitudinal axis of the central bore.
  • 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)
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 true EP0304656A1 (fr) 1989-03-01
EP0304656B1 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)

Cited By (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
WO1996005629A1 (fr) * 1994-08-17 1996-02-22 Nera Limited Dispositifs de montage antenne a hyperfrequences/tete a frequences radio-electriques
WO1996039726A1 (fr) * 1995-06-05 1996-12-12 Italtel S.P.A. Systeme de reglage fin d'orientation d'antenne selon trois axes orthogonaux
US8760361B2 (en) 2009-09-29 2014-06-24 Andrew Llc Method and apparatus for fine polarization reflector antenna adjustment

Citations (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
DE2800101A1 (de) * 1977-01-12 1978-07-13 Philips Nv Strahler fuer eine antenne, u.a. fuer satellitensignale
DE2812341A1 (de) * 1978-03-21 1979-09-27 Siemens Ag Hohlleiterstrahler
CH659545A5 (en) * 1983-05-11 1987-01-30 Nikola Kevic Reflector antenna

Patent Citations (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
DE2800101A1 (de) * 1977-01-12 1978-07-13 Philips Nv Strahler fuer eine antenne, u.a. fuer satellitensignale
DE2812341A1 (de) * 1978-03-21 1979-09-27 Siemens Ag Hohlleiterstrahler
CH659545A5 (en) * 1983-05-11 1987-01-30 Nikola Kevic Reflector antenna

Cited By (5)

* 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
US5625368A (en) * 1991-05-13 1997-04-29 Thomson Consumer Electronics, S.A. Radiowave antenna system
WO1996005629A1 (fr) * 1994-08-17 1996-02-22 Nera Limited Dispositifs de montage antenne a hyperfrequences/tete a frequences radio-electriques
WO1996039726A1 (fr) * 1995-06-05 1996-12-12 Italtel S.P.A. Systeme de reglage fin d'orientation d'antenne selon trois axes orthogonaux
US8760361B2 (en) 2009-09-29 2014-06-24 Andrew Llc Method and apparatus for fine polarization reflector antenna adjustment

Also Published As

Publication number Publication date
NO172918B (no) 1993-06-14
DE3875559D1 (de) 1992-12-03
NO883617D0 (no) 1988-08-12
EP0304656B1 (fr) 1992-09-30
NO172918C (no) 1993-09-22
NO883617L (no) 1989-02-13
DE3875033D1 (de) 1992-11-05

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