EP0026001B1 - Antenne pour la réception directe des émissions de satellites - Google Patents

Antenne pour la réception directe des émissions de satellites Download PDF

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Publication number
EP0026001B1
EP0026001B1 EP80105715A EP80105715A EP0026001B1 EP 0026001 B1 EP0026001 B1 EP 0026001B1 EP 80105715 A EP80105715 A EP 80105715A EP 80105715 A EP80105715 A EP 80105715A EP 0026001 B1 EP0026001 B1 EP 0026001B1
Authority
EP
European Patent Office
Prior art keywords
antenna
plate
adjustment
axis
angular degree
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
Application number
EP80105715A
Other languages
German (de)
English (en)
Other versions
EP0026001A1 (fr
Inventor
Heinz Ing. Grad. Licht
Werner Dipl.-Ing. Hanfgarn
Herbert Dipl.-Ing. Zwilling
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
Priority claimed from DE19792938796 external-priority patent/DE2938796C2/de
Priority claimed from DE19792938741 external-priority patent/DE2938741A1/de
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT80105715T priority Critical patent/ATE4567T1/de
Publication of EP0026001A1 publication Critical patent/EP0026001A1/fr
Application granted granted Critical
Publication of EP0026001B1 publication Critical patent/EP0026001B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the invention relates to a receiving antenna for direct satellite reception, with a pivotable antenna construction with an antenna reflector, in particular parabolic shape, which is provided with a reference mark running in the direction of the electrical axis of the antenna, which is determined by presetting according to the radiation diagram of the antenna.
  • television broadcasting satellites For the direct, direct supply of home receivers with television and radio programs, so-called television broadcasting satellites or direct television satellites can be used, which are illuminated by a ground transmitter and distribute the received program directly to the television subscribers. These satellites are placed in a certain equatorial orbit and move synchronously with the Earth's revolution. As a result, a television broadcasting satellite appears to come to rest in a “fixed”, so-called geostationary position, which means that it is almost stationary in relation to a point on the earth's surface. A satellite which is stationary with respect to the earth permits the use of fixedly aligned and sharply focused antennas on the receiving side which do not need to be tracked.
  • the receiving antennas In direct satellite reception, the receiving antennas must be aligned with the satellite positioned in orbit, the position of which is characterized by its elevation and azimuth for the different reception locations. There is therefore the task of aligning the receiving antenna according to the local position data of the satellite. Only then can the fine adjustment be carried out on the basis of the received electrical signals (maximum reception voltage). An exclusive adjustment based on the received signals would be equivalent to looking for the pin in the haystack due to the bundle sharpness of the antennas.
  • the invention is based on the object of demonstrating a solution which enables the installer of a reception antenna for direct satellite reception intended for domestic use in a simple manner to roughly align the position of the reception antenna to a direct satellite.
  • the electrical axis and thus the main direction of the receiving lobe which was determined by means of a direction finding process during the manufacture and electrical testing of the antenna, is thus identified in a manner that is easily recognizable, so that the antenna fitter has no rough application of the antenna on the direct satellite any lengthy, cumbersome DF or measuring procedure is made possible.
  • the fitter can align the position of the antenna precisely with the satellite.
  • the fitter is also able to align the antenna on the direct satellites in azimuth and elevation without using any complex, lengthy measuring procedures.
  • the antenna can therefore be precisely aligned even in a difficult location, for example on a house roof.
  • This setting device can be permanently or temporarily coupled to the reference marking and is then easily coupled to the antenna construction in the correct position with respect to the electrical axis of the antenna.
  • a card table for adjusting the height angle of an antenna which is located on the antenna base, has indeed become known from German Offenlegungsschrift 2,628,646.
  • a pointer is pivoted with the antenna via a gear transmission.
  • the display device is connected to a map. On the one hand, this display device is permanently mounted in the antenna base and on the other hand it is only used for vertical adjustment and display of the corresponding value.
  • a receiving antenna according to the invention with an adjusting device, it is formed in two mutually perpendicular planes, each with an angular degree scale, the angular degree scale for the elevation adjustment in a fixed reference to the horizontal and the angular degree scale for the azimuth adjustment in a fixed reference to the north-south direction.
  • the setting device in the plane in which the angular degree scale is provided for the azimuth adjustment is provided with a compass related to this scale and a device for adjusting the horizontal.
  • This device expediently consists of a dragonfly.
  • Such a setting device is easy to use by the installer and works with sufficient accuracy.
  • the contact edge of the setting device is fixed in relation to the horizontal (level) and by means of the angular degree scale for setting the elevation brought into a fixed relation to the north-south direction (compass needle) using the angular degree scale for the azimuth setting.
  • the angle degree scale should be set before installing the antenna, taking into account the data for elevation and azimuth valid for the receiving location. It is therefore a great relief if the elevation of the antenna can be set very precisely and its azimuth can be preset to a few angular degrees.
  • the installer who often works in an exposed position, only has to bring the level to the middle position and the compass needle in the north-south direction when aligning the antenna. These devices can be carried out with one hand.
  • the final finding of the satellite position is then achieved by evaluating the recorded electrical signals by continuously changing the azimuth within a few degrees. Ultimately, the fine adjustment follows on the basis of the recorded electrical signals.
  • the antenna reflector 1 of the pivotable antenna construction is formed on its outer surface, here in the region of its edge, with a reference marking 2, which is in fixed relation to the electrical axis A1 of the antenna.
  • This reference marking 2 is designed as an edge 11 which is directed parallel to the electrical axis A1 and runs in the direction of the electrical axis and which is provided on an arrangement consisting of two parts 3 and 4 connected to one another. The more detailed structure of this arrangement is shown in FIG. 2.
  • the two parts 3 and 4 which are connected to one another, consist of two flat, rectangular plates of different sizes, the rear plate 3 being somewhat larger than the front plate 4 lying against it.
  • the rear plate 3 is formed on one side with a pivot axis 5 and, as can be seen in FIG. 1, is thus mounted on the antenna reflector 1 in such a way that the plates 3 and 4 extend with their longitudinal direction in the direction of the electrical axis A1 of the antenna.
  • the plate 3 is formed on the side of the plate 4 with an elongated hole 6 extending parallel to the long plate sides and a set screw 7 provided with a helical spring for pivoting the plate arrangement about the axis of rotation 5.
  • this is provided with a strip 8 bent at right angles to the plate plane, which is formed in the region of the end facing away from the pivot axis 5 with an elongated hole 9 extending in the plate longitudinal direction for a further set screw 10 for vertically pivoting the second plate 4.
  • This set screw 10 which is also provided with a helical spring, is screwed into a strip 11 of the front plate 4 which is parallel to the strip of the rear plate 3, the strip 11 being bent at a right angle to the plate surface on an adjacent longitudinal side of the plate 4 which is parallel to the upper longitudinal side of the plate 3 .
  • the front plate 4 is firmly connected to the rear plate 3 by means of a bolt 12 in such a way that the plate 4 rotates about the axis of rotation formed by the bolt and perpendicular to the pivot axis 5 12 can be pivoted against the plate 3.
  • the front plate 4 is also formed in the manner shown with an elongated hole 13 and a guide and locking screw 14 on the corner diametrically opposite the axis of rotation 12.
  • the strip 11 of the front plate 4 forms the edge which runs parallel to the electrical axis A of the antenna and in the direction of this axis.
  • the bar 11 thus represents the reference marking.
  • This is formed in a suitable manner with the plate 4 also with an adjustable contact surface, on which an alignment device for adjusting the antenna in azimuth and elevation can be received and attached.
  • the mounting of the plate arrangement on the antenna reflector 1 and the position of the plate 3 relative to the antenna reflector and the position of the plates 3 and 4 with one another is carried out by means of a direction finding process during the manufacture and the electrical testing of the antenna, that is to say prior to its installation.
  • the adjusting device according to FIGS. 3 and 4 consists of a base plate 21 with a z. B. from about 205 to 235 degrees angle scale 22 for azimuth adjustment.
  • the base plate 21 is also provided with a magnetic compass 23, which can optionally also be replaced by a north-seeking gyroscope, so that the angular degree scale 22 for the azimuth setting can be brought into a fixed relation to the north-south direction (compass needle) .
  • the compass 23 has an extension 24 on its outer circumference with a pointer 25, an elongated hole 26 and a guide and locking screw 27.
  • the base plate 21 also has a spirit level 28 for adjusting the horizontal.
  • the side edge 29 of the base plate which is adjacent to the angular degree scale 22, is chamfered and thus as a pointer educated.
  • the base plate 21 is pivotally mounted about an axis of rotation 31 in a U-shaped frame 32 which is provided with a base 39 and surrounds the base plate 21 on four sides, the side plates 33, 34 being directed perpendicular to the base plate are.
  • the side plate 33 is provided at its circular arc-shaped end with an angular degree scale 35 for adjusting the elevation. This angular degree scale ranges from 0 to 30 degrees, for example.
  • the side plate 33 is formed with a contact edge 36 which is oblique to the base plate and by means of which the setting device can be coupled to the pivotable antenna construction of the receiving antenna.
  • the contact edge 36 can be brought to the horizontal by means of the angular degree scale 35.
  • the front side plate 34 of the U-shaped frame 32 is provided on the opposite side of the angular degree scale 35, also rounded in a circular arc shape, with an arcuate slot 37 extending around the axis of rotation 31 as the center, which via a locking screw 38 pivots the base plate 21 in the angular range the angular degree scale 35 enables.
  • the setting device is coupled with the contact edge 36 to the edge 11, which forms the reference marking 2 and is parallel to the electrical axis A1 and extends in the direction of the electrical axis.
  • the antenna is expediently arranged reversed in relation to the illustration in FIG. 1.
  • the rear plate 3 of the arrangement according to FIG. 1 is - as already stated - designed on one side with a pivot axis 5 and, as can also be seen in FIG. 1, is thus mounted on the antenna reflector 1 in such a way that the plates 3 and 4 extend in their longitudinal direction in the direction of the electrical axis A of the antenna and a horizontal pivoting of the plate arrangement can be carried out about this axis.
  • the front plate 4 can be pivoted about the axis of rotation 12 perpendicular to the pivot axis 5 against the plate 3 in order to be able to pivot vertically.
  • the contact edge 36 is placed against the edge 11 of the reference marking, so that the setting device is coupled in the correct position with respect to the electrical axis A1 of the antenna.
  • the installer of the antenna must then when aligning the antenna, i.e. When precisely adjusting the electrical axis of the antenna in elevation and azimuth, just bring the level indicator to the center position and the compass needle in the north-south direction.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Radar Systems Or Details Thereof (AREA)

Claims (7)

1. Antenne réceptrice pour la réception directe à partir de satellites, comportant un agencement d'antenne pivotant comprenant un réflecteur d'antenne (1 ), notamment de forme parabolique, qui est muni d'un dispositif de repérage de référence (2) qui s'étend en direction de l'axe électrique (A1 ) de l'antenne et qui est fixé par préréglage en fonction du diagramme de rayonnement de l'antenne, caractérisé par les mesures suivantes:
a) le dispositif de repérage de référence (2) est constitué par deux parties (3, 4) couplées entre elles, dont une partie (3) est montée sur l'agencement d'antenne de façon à pouvoir pivoter autour d'un premier axe (5) et la seconde partie (4) est montée sur la première partie (3) de façon à pouvoir pivoter autour d'un axe (12) perpendiculaire au premier axe;
b) les deux parties sont constituées par des plaques planes (3, 4) disposées l'une au-dessus de l'autre qui comportent respectivement des réglettes (8, 11) coudées à angle droit au niveau de côtés longitudinaux voisins parallèles entre eux;
c) la réglette (11) de la seconde plaque (4) forme le dispositif de repérage de référence (2) et sert simultanément à recevoir une vis de réglage (10) pour le pivotement vertical de la seconde plaque (4);
d) il est prévu un dispositif pour régler l'antenne en élévation et en azimut qui est muni d'une arête (36) ou surface d'appui qui peut être couplée au dispositif de repérage de référence (2).
2. Antenne réceptrice suivant la revendication 1, caractérisée par le fait que le dispositif de réglage est agencé dans deux plans (21, 33) mutuellement perpendiculaires qui comportent respectivement une échelle en degrés (22, 35), et que l'échelle en degrés (35) pour le réglage en élévation est dans une position relative fixe par rapport à l'horizontale, et l'échelle en degrés (22) pour le réglage en azimut est dans une position relative fixe par rapport à la direction nord-sud.
3. Antenne réceptrice suivant la revendication 2, caractérisée par le fait que le dispositif de réglage est muni, dans le plan dans lequel est prévue l'échelle en degrés (22) pour le réglage en azimut, d'un compas (23) se rapportant à cette échelle et d'un dispositif (28) pour le réglage de l'horizontale.
4. Antenne réceptrice suivant la revendication 3, caractérisée par le faitque le dispositif (28) pour le réglage de l'horizontale est constitué par une nivelle.
5. Antenne réceptrice suivant la revendication 3 ou 4, caractérisée par le fait que le dispositif de réglage est constitué par une plaque de base (21) pour l'échelle en degrés (22) pour le réglage en azimut, pour le compas (23) et pour le dispositif (28) pour le réglage de l'horizontale, et comporte au moins une plaque (33), perpendiculaire à la plaque de base, qui est munie de l'échelle en degrés (35) pour le réglage en élévation et de l'arête d'appui (36) pour le dispositif de repérage de référence (2).
6. Antenne réceptrice suivant la revendication 5, caractérisée par le fait que la plaque de base (21) peut pivoter autour d'un axe de rotation (31) perpendiculaire à l'autre plaque (33) dans la plage angulaire de l'échelle en degrés (35) pour le réglage en élévation.
7. Antenne réceptrice suivant la revendication 6, caractérisée par le fait que la plaque de base (21) est montée dans un cadre (32) en forme de U.
EP80105715A 1979-09-25 1980-09-23 Antenne pour la réception directe des émissions de satellites Expired EP0026001B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80105715T ATE4567T1 (de) 1979-09-25 1980-09-23 Empfangsantenne fuer satelliten-direktempfang.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2938796 1979-09-25
DE2938741 1979-09-25
DE19792938796 DE2938796C2 (de) 1979-09-25 1979-09-25 Ausrichtgerät für eine Satelliten-Direktempfangs-Reflektor-Antenne
DE19792938741 DE2938741A1 (de) 1979-09-25 1979-09-25 Empfangsantenne fuer satelliten-direktempfang

Publications (2)

Publication Number Publication Date
EP0026001A1 EP0026001A1 (fr) 1981-04-01
EP0026001B1 true EP0026001B1 (fr) 1983-08-31

Family

ID=25781187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105715A Expired EP0026001B1 (fr) 1979-09-25 1980-09-23 Antenne pour la réception directe des émissions de satellites

Country Status (4)

Country Link
EP (1) EP0026001B1 (fr)
DK (1) DK403780A (fr)
FI (1) FI803003A (fr)
NO (1) NO802796L (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE429374B (sv) * 1980-04-15 1983-08-29 Luxor Ab Feste
US4495706A (en) * 1982-07-19 1985-01-29 The Stolle Corporation Alignment gage for dish antenna
FR2540295A1 (fr) * 1983-01-31 1984-08-03 Thomson Brandt Dispositif de mesure de l'angle de site d'une antenne volumique orientable
FR2544486B1 (fr) * 1983-04-12 1985-06-14 Thomson Brandt Outil de mesure de l'angle de site d'une antenne volumique
FR2594600B1 (fr) * 1986-02-18 1988-04-15 Alcatel Thomson Faisceaux Dispositif de reglage de la polarisation d'une antenne et procede de mise en oeuvre d'un tel dispositif
DE3801619A1 (de) * 1988-01-21 1989-07-27 Thomson Brandt Gmbh Empfangseinrichtung fuer satellitensignale
FR2695255B1 (fr) * 1992-08-05 1994-11-18 Didier Ziakovic Positionneur manuel ou semi-automatique d'antenne satellite.
DE9408343U1 (de) * 1994-05-20 1994-09-22 DELEGA GROUP Management S.A., Genf/Genève Satellitenantenne
AT1040U1 (de) * 1995-08-02 1996-09-25 Napetschnig Georg Messgerät zum bestimmen der neigung und der himmelsrichtung
FR2753007B1 (fr) * 1996-09-04 1998-11-27 Bourquin Patrick Antenne de reception satellite
CN114665269B (zh) * 2022-04-15 2022-12-02 三威通讯器材有限公司 一种动中通天线用调节装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677183A (en) * 1948-07-21 1954-05-04 Brenner Morris Surveying instrument
US2600513A (en) * 1948-09-28 1952-06-17 Western Electric Co Testing pedestal for radar antenna
US2857679A (en) * 1956-10-25 1958-10-28 Bleu Thomas R Le Surveyor's compass
FR1364426A (fr) * 1963-07-24 1964-06-19 Multanova Ag Dispositif de réglage de la direction horizontale et de l'inclinaison d'une antennede radar disposée sur un support, qui sert à déterminer la vitesse de véhicules automobiles
FR1496771A (fr) * 1966-07-26 1967-10-06 Labo Cent Telecommunicat Perfectionnements aux antennes de poursuite de satellites artificiels
US3417394A (en) * 1967-02-20 1968-12-17 Elgeo Instr Of America Inc Geodetic instrument
JPS5548562Y2 (fr) * 1975-06-26 1980-11-13
US4126865A (en) * 1975-11-11 1978-11-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Satellite tracking dish antenna

Also Published As

Publication number Publication date
NO802796L (no) 1981-03-26
DK403780A (da) 1981-03-26
FI803003A (fi) 1981-03-26
EP0026001A1 (fr) 1981-04-01

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