EP0925618B1 - Antenne für satellitenempfang - Google Patents

Antenne für satellitenempfang Download PDF

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Publication number
EP0925618B1
EP0925618B1 EP97937641A EP97937641A EP0925618B1 EP 0925618 B1 EP0925618 B1 EP 0925618B1 EP 97937641 A EP97937641 A EP 97937641A EP 97937641 A EP97937641 A EP 97937641A EP 0925618 B1 EP0925618 B1 EP 0925618B1
Authority
EP
European Patent Office
Prior art keywords
box
receiving antenna
antenna according
source
reflector
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
EP97937641A
Other languages
English (en)
French (fr)
Other versions
EP0925618A1 (de
Inventor
Patrick Bourquin
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.)
Tele-Equipement
Tele Equipement
Original Assignee
Tele-Equipement
Tele Equipement
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 Tele-Equipement, Tele Equipement filed Critical Tele-Equipement
Publication of EP0925618A1 publication Critical patent/EP0925618A1/de
Application granted granted Critical
Publication of EP0925618B1 publication Critical patent/EP0925618B1/de
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
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/132—Horn reflector antennas; Off-set feeding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome

Definitions

  • the present invention relates to a reception antenna intended for receive signals from a geostationary satellite.
  • the invention finds a particularly advantageous application in the field of transmission of television signals, whether intended for individual or collective use.
  • the reflector is composed of a reflector, a source and a frequency converter.
  • the reflector has a paraboloid or portion shape dish. The signals received from the satellite are thus reflected and concentrated in one focal point. This is where the source, accessory intended to guide the waves towards the converter charged with change the frequency.
  • the reception antennas used are essentially of the offset type due to their great compactness. Thanks to its decentralization, the source of this family of satellite dishes does not make any shadow on the surface reflecting the signal, which provides better gain and therefore reduces the dimensions of the antenna.
  • reception antennas Due to their design, these reception antennas are also directly exposed to natural elements such as the sun, the wind, humidity or snow as many factors detrimental to their good operation.
  • the technical problem to be solved by the subject of this invention is to provide a receiving antenna intended to receive signals from a geostationary satellite, including in particular a reflector in the form of a paraboloid capable of reflecting the received signals and concentrate them at a focal point where a source capable of guiding is placed said signals to a frequency converter, receiving antenna which would avoid the problems of the state of the art by being almost insensitive to weather conditions and very easy while offering a more discreet appearance.
  • the solution to the technical problem posed consists, according to this invention, in that the source as well as the reflector are arranged at inside a polyhedral housing, permeable to electromagnetic waves and the underside of which is intended to be placed horizontally when the use of the receiving antenna, the relative positioning of said source and said reflector relative to said underside of the housing integrating from the outset a specific site setting, that is to say that said relative positioning takes into account the elevation angle corresponding to the position of the target satellite.
  • the invention as defined has the advantage of being excessively easy to install since the fact of leveling the housing on a horizontal surface eliminates the need for adjustment elevation. It then suffices simply to orient said housing in the direction azimuth of the satellite to be able to perfectly capture the waves emitted.
  • the housing polyhedral presents an entirely arbitrary aesthetic allowing it to blend easily into the urban landscape. This ability may be still accentuated by the fact that it is possible to cover it with paint, color identical or similar to its direct environment. It also offers effective protection against UV rays from the sun or humidity, plus low wind resistance and the ability to operate perfectly even covered in snow.
  • the frequency converter is also mounted inside the polyhedral housing.
  • the source and the converter are directly coupled together so as not to form a single piece whose compactness induces greater ease of use.
  • the single figure represents a longitudinal section view of a reception antenna according to a particular embodiment of the invention.
  • the housing 1 illustrated in the figure is heptahedral.
  • the two walls side 2 parallel to the cutting plane are identical in shape. All like the rear wall 3, they are positioned orthogonally to the face lower 4, while the front face 5 is inclined outward.
  • the face upper 6 is broken down here into two parts of which the main 7, through which the majority of electromagnetic waves is intended to pass, is not parallel to the lower face 4; this in order to prohibit any deposit of object whose presence could disturb reception, and incidentally allow satisfactory flow of water or melted snow.
  • one of the side walls 2 is provided with a hatch 9 providing access to the interior of the housing 1; this opening concealable being intended for the maintenance of the various internal components of the receiving antenna.
  • a reflector 10 is attached to the rear wall 3, under a part secondary 8 of the upper face 6.
  • the outline of this paraboloid portion resumes here substantially the shape and dimensions of this location of the housing 1, that is to say that it is in the form of a rectangular parallelogram.
  • the reflector 10 can be constituted by a metallized concave element of any kind, such as molded plastic covered with copper or chromium; or just be metallic, like a mirror in aluminum.
  • the source 11 is in turn clipped onto a support 12 positioned in face of the reflector 10. It is directly coupled to the converter 13 for the convenience reasons already mentioned. Its orientation in the plan vertical, as is the position of the reflector relative to the underside 4, is determined as a function of the elevation of the target satellite 15, that is to say of the angle measured in a vertical plane between the horizon and said satellite 15. This inclination varying according to the latitude of the place of sight, the angle of elevation taken into account is an average of the values recorded in the area covered by the signal broadcast. In order to guarantee optimal reception quality in in the case of extremely extensive coverage, it is however possible to predict for the same region minor variations in this value of site; the space considered being divided into several zones, each of which a specific elevation angle is assigned.
  • the housing 1 is mounted perfectly waterproof and may possibly contain means for capture all traces of moisture, such as silica sachets. Of even, it can be equipped with a heating system allowing the case melt the snow, mainly on its upper face 6.
  • the receiving antenna is provided an internal lighting system 14 which, combined with the translucent nature of the material constituting the main part 7 of the upper face 6, provides a double benefit. On the one hand, it brings an undeniable once in motion decorative appeal, and on the other hand, it can form a heat source of likely to cause the same effects as an internal heating system.
  • the translucent face used in this configuration can be made in Plexiglas or Altuglas, materials which are otherwise permeable to waves electromagnetic.
  • the other faces of the housing 1 are made of expanded PVC, that is to say of a material resistant, also permeable to waves and which also offers very good held over time, even exposed to different weather conditions.
  • PVC honeycomb can optionally be used to further increase its resistance, towards hailstones for example.
  • the receiving antenna according to the invention is conventionally usable, that is to say fixed on a vertical support. But she can also, particularly advantageously, be placed directly the ground 16 or be partially buried. In the first case, care will be taken to have a perfectly horizontal surface. In the second, it will suffice to dig a hole 17 in the ground 16 with a volume substantially equal to dimensions of the housing 1 and oriented substantially in the azimuth direction from the target satellite 15, deposit a bed of sand 18 at the bottom and then position horizontally said housing 1 using a level, this time controlling precisely said azimuth direction with a compass.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Aerials (AREA)
  • Radio Relay Systems (AREA)
  • Laminated Bodies (AREA)
  • Table Devices Or Equipment (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (10)

  1. Empfangsantenne für Signale eines geostationären Satelliten (15) mit insbesondere einem parabelförmigen Reflektor (10) für das Reflektieren und Bündeln von empfangenen Signalen in einen Brennpunkt, in dem sich eine Quelle (11) für das Übertragen der Signale an einen Frequenzwandler (13) befindet,
    dadurch gekennzeichnet, dass
    die Quelle (11) wie auch der Reflektor (10) innerhalb eines polyedrischen Kastens (1) untergebracht sind, der für elektromagnetische Wellen durchlässig ist und dessen Innenfläche (4) bei Nutzung der Empfangsantenne horizontal angeordnet wird, wobei die relative Positionierung der Quelle (11) und des Reflektors (10) in Bezug auf die Unterseite (4) des Kastens (1) eine Regelung an dem vorgegebenen Ort beinhaltet, das heißt dass bei der relativen Positionierung der Höhenwinkel berücksichtigt wird, der der Position des angepeilten Satelliten entspricht.
  2. Empfangsantenne nach Anspruch 1,
    dadurch gekennzeichnet, dass
    der Frequenzwandler (13) im Innern des polyedrischen Kastens (1) untergebracht ist.
  3. Empfangsantenne nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass
    wenigstens ein Teil der oberen Fläche (6) des Kastens (1) in einer Ebene liegt, die die Ebene schneidet, in der die Unterseite (4) des Kastens (1) liegt.
  4. Empfangsantenne nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass
    der Kasten (1) eine abdeckbare Öffnung (9) für die Wartung verschiedener Komponenten im Inneren aufweist.
  5. Empfangsantenne nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, dass
    der Kasten (1) vollständig dicht ist.
  6. Empfangsantenne nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, dass
    der Kasten (1) Mittel zum Aufnehmen von Feuchtigkeit enthält.
  7. Empfangsantenne nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, dass
    der Kasten (1) Mittel zum Heizen für eine eventuelle Beseitigung von Schnee auf seiner oberen Fläche umfasst.
  8. Empfangsantenne nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, dass
    der Kasten (1) wenigstens teilweise aus PVC besteht.
  9. Empfangsantenne nach einem der Ansprüche 1 bis 8,
    dadurch gekennzeichnet, dass
    der Kasten (1) ein inneres Beleuchtungssystem (14) enthält und wenigstens ein Teil (7) der oberen Fläche (6) des Kastens (1) aus durchsichtigem Material hergestellt ist, das durchlässig für elektromagnetische Wellen ist.
  10. Verfahren zum Installieren einer Empfangsantenne nach einem der vorangehenden Ansprüche,
    dadurch gekennzeichnet, dass es umfasst:
    Ausheben eines Loches (17) in dem Boden (16), das im wesentlichen die gleichen Dimensionen wie der Kasten (1) hat, wobei das Loch (17) im wesentlichen in azimutaler Richtung des angepeilten Satelliten (15) ausgerichtet ist,
    Erzeugen eines Sandbettes (18) auf dem Boden des Loches (17) und
    horizontales Positionieren des Kastens (1) auf dem Sandbett (18), wobei diesmal die Genauigkeit der azimutalen Ausrichtung mit einer Kompass eingestellt wird.
EP97937641A 1996-09-04 1997-08-19 Antenne für satellitenempfang Expired - Lifetime EP0925618B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9610945A FR2753007B1 (fr) 1996-09-04 1996-09-04 Antenne de reception satellite
FR9610945 1996-09-04
PCT/FR1997/001505 WO1998010486A1 (fr) 1996-09-04 1997-08-19 Antenne de reception satellite

Publications (2)

Publication Number Publication Date
EP0925618A1 EP0925618A1 (de) 1999-06-30
EP0925618B1 true EP0925618B1 (de) 2002-01-23

Family

ID=9495551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97937641A Expired - Lifetime EP0925618B1 (de) 1996-09-04 1997-08-19 Antenne für satellitenempfang

Country Status (7)

Country Link
US (1) US6208314B1 (de)
EP (1) EP0925618B1 (de)
AT (1) ATE212479T1 (de)
AU (1) AU4019497A (de)
DE (1) DE69710081T2 (de)
FR (1) FR2753007B1 (de)
WO (1) WO1998010486A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2783360B1 (fr) * 1998-09-11 2000-11-24 Daniel Bureau Dispositif de reception d'ondes comportant une antenne satellite
US6709184B1 (en) 1999-12-20 2004-03-23 Bellsouth Intellectual Property Corp. Apparatus for mounting a receiver mast and associated method
US6753823B2 (en) 2000-12-29 2004-06-22 Bellsouth Intellectual Property Corporation Antenna with integral alignment devices
US6484987B2 (en) 2000-12-29 2002-11-26 Bellsouth Intellectual Property Corporation Mounting bracket
US20020083574A1 (en) 2000-12-29 2002-07-04 Matz William R. Method for aligning an antenna with a satellite
US6486851B2 (en) 2000-12-29 2002-11-26 Bellsouth Intellectual Property Corporation Antenna components and manufacturing method therefor
US6799364B2 (en) 2000-12-29 2004-10-05 Bellsouth Intellectual Property Corporation Antenna aligning methods
US6683581B2 (en) 2000-12-29 2004-01-27 Bellsouth Intellectual Property Corporation Antenna alignment devices
US6507325B2 (en) 2000-12-29 2003-01-14 Bellsouth Intellectual Property Corporation Antenna alignment configuration
US6559806B1 (en) 2000-12-29 2003-05-06 Bellsouth Intellectual Property Corporation Motorized antenna pointing device
US6480161B2 (en) 2000-12-29 2002-11-12 Bellsouth Intellectual Property Corporation Motorized antenna pointing device
US6937188B1 (en) 2001-11-13 2005-08-30 Bellsouth Intellectual Property Corporation Satellite antenna installation tool
EP1956677B1 (de) * 2007-02-08 2010-12-15 SISVEL Technology Srl Hoch integrierbare Flachantenne für den Empfang von Satellitenfernsehen
GB2481016B (en) 2010-06-08 2014-10-29 Michael Cummings Antenna heating apparatus
FR3025946A1 (fr) * 2014-09-16 2016-03-18 Tele Equipement Antenne de reception satellite

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Publication number Priority date Publication date Assignee Title
US3815140A (en) * 1972-11-06 1974-06-04 Boeing Co Multiple feed for microwave parabolic antennas
US3790949A (en) * 1972-12-13 1974-02-05 T Mcgraw Survivable ground antenna system
NO802796L (no) * 1979-09-25 1981-03-26 Siemens Ag Mottagningsantenne for direkte mottagning via satelitt
JPS60134604A (ja) * 1983-12-23 1985-07-17 Mitsubishi Electric Corp アンテナ装置
US4920350A (en) * 1984-02-17 1990-04-24 Comsat Telesystems, Inc. Satellite tracking antenna system
US4710778A (en) * 1985-08-07 1987-12-01 Radov Mitchell C Satellite earth station
AU603900B2 (en) * 1987-08-06 1990-11-29 W.L. Gore & Associates, Inc. Protective electromagnetically transparent window
GB2211609A (en) * 1987-10-27 1989-07-05 Argosy Electronics Limited Alignment device
JPH01259602A (ja) * 1988-04-08 1989-10-17 Bridgestone Corp Ｂｓアンテナの設置構造
GB8817885D0 (en) * 1988-07-27 1988-09-01 British Telecomm Antenna
US5278562A (en) * 1992-08-07 1994-01-11 Hughes Missile Systems Company Method and apparatus using photoresistive materials as switchable EMI barriers and shielding
GB2290868B (en) * 1994-06-07 1998-04-29 Int Maritime Satellite Organiz Method and apparatus for determining direction
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US5844529A (en) * 1997-04-07 1998-12-01 Electromagnetic Sciences, Inc. Antenna enclosure with a stress-free connection along the length of the radome

Also Published As

Publication number Publication date
WO1998010486A1 (fr) 1998-03-12
FR2753007A1 (fr) 1998-03-06
DE69710081T2 (de) 2002-08-22
FR2753007B1 (fr) 1998-11-27
DE69710081D1 (de) 2002-03-14
AU4019497A (en) 1998-03-26
ATE212479T1 (de) 2002-02-15
US6208314B1 (en) 2001-03-27
EP0925618A1 (de) 1999-06-30

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