EP0274693B1 - Nachrichtenübertragungsantenne mit Reflektor - Google Patents

Nachrichtenübertragungsantenne mit Reflektor Download PDF

Info

Publication number
EP0274693B1
EP0274693B1 EP87118617A EP87118617A EP0274693B1 EP 0274693 B1 EP0274693 B1 EP 0274693B1 EP 87118617 A EP87118617 A EP 87118617A EP 87118617 A EP87118617 A EP 87118617A EP 0274693 B1 EP0274693 B1 EP 0274693B1
Authority
EP
European Patent Office
Prior art keywords
reflector
source
antenna
axis
cone
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
EP87118617A
Other languages
English (en)
French (fr)
Other versions
EP0274693A1 (de
Inventor
Eric Begout
Alain Bourgeois
Raymond Gueuret
Pascal Lapeyre
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.)
Alcatel CIT SA
Original Assignee
Alcatel Telspace SA
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 Alcatel Telspace SA filed Critical Alcatel Telspace SA
Publication of EP0274693A1 publication Critical patent/EP0274693A1/de
Application granted granted Critical
Publication of EP0274693B1 publication Critical patent/EP0274693B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning

Definitions

  • the present invention relates to a telecommunications antenna.
  • the antenna with structure of revolution has the advantage of a good purity of polarization. But the existence of a mask due to the power source essentially deteriorates the yield and the radiation patterns.
  • An antenna with an eccentric structure has the advantage of not having a mask due to the power source, but, on the other hand, its polarization purity is poor.
  • the antennas of the prior art can be associated with common mounts either of the XY type or of the Azimut-Elevation (or AZ-EL) type.
  • the main drawback of the XY mount is the absence of a vertical axis which forces the operator to make conversions to switch to local references (horizontal and vertical of the installation location).
  • This type of frame also requires the use of conversion tables which can be detrimental for the installation time.
  • Mounts of the AZ-EL type having a vertical axis, have the advantage of making the azimuth settings, referenced relative to geographic or magnetic north, and elevation, referenced on the horizontal of the place, independent.
  • the object of the present invention is to overcome these drawbacks.
  • Such an antenna has the great advantage of being a small diameter reflector antenna designed to have very high level emission and reception radio performance, mechanical performance meeting very severe requirements, great ease of installation, and d '' be an antenna whose industrial development calls on economic technologies.
  • FIG. 1 represents an antenna with a structure of revolution.
  • the power source 1 forms a mask 2 for the beam reflected 3 by the reflector 4.
  • FIG. 2 represents an antenna with an eccentric structure.
  • the source 1 is then located outside the beam reflected 3 by the reflector 4.
  • the antenna according to the invention as shown in FIG. 3, comprises a reflector 4 with semi-centered geometry, and a source 1 which only very little masks the beam reflected 3 by the reflector 4.
  • l offset angle ⁇ angle between the focal axis ⁇ Foc and the median radius 5 of the total beam illuminating the reflector and coming from the source
  • 25 ° ⁇ ⁇ 35 ° when the half-angle of illumination of the reflector ⁇ , seen from the source: 45 ° ⁇ ⁇ 55 °.
  • the antenna mount is an AZ-EL type mount.
  • the interlocking of the two cones 18 and 19, as shown in FIG. 5, constitutes the azimuth axis ⁇ AZ, the axis 20 materializing the elevation axis ⁇ EL.
  • the antenna By modifying the coupling of the two inclined planes 16 and 17; in a first position the antenna can be made integral with the horizontal floor 24, in a second position it can be made integral with a vertical wall 26.
  • the ribs 31 and 28 respectively located under the internal faces of the lower 18 and upper 19 cones allow the stiffening of the foundry parts: They allow better resistance to the wind of the antenna.
  • the upper cone 19 can be provided with several reference lugs for positioning, for example, a small tool supporting a compass which makes it possible to orient the antenna precisely during its positioning.
  • the source support 13 1 is designed to mask as little as possible the waves reflected by the reflector. It may have a pointed cross section.
  • Such an antenna in a monopolar version, allows the reception of signals from satellites, in the band 10.7 to 12.75 GHz.
  • the installation time for the complete antenna for a diameter of less than 1.50 m is approximately 15 minutes. Pointing accuracy is better than 0.1 °. Stability is better than 0.08 ° for a wind less than 20m / s.

Landscapes

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

Claims (4)

  1. Nachrichtenübertragungsantenne mit einem halbexzentrisch ausgebildeten Reflektor (4), einer Speisequelle (9), die auf einem Fest mit dem Reflektor (4) verbundenen Quellenträger (13) montiert ist, einem Antennenfuß (9, 14), der den Reflektor und die Quelle trägt, wobei die Quelle so positioniert ist, daß sie bei einem Bestrahlungshalbwinkel β von der Quelle her gesehen mit 45°<β<55° einen Versetzungswinkel α (Winkel zwischen der Fokusachse ΔFoc und dem mittleren Radius des den Reflektor treffenden und von der Quelle (1) ausgehenden Gesamtstrahls) aufweist, derart, daß 25°<α<35° gilt, dadurch gekennzeichnet, daß die Antennengarnitur vom Typ Azimut-Elevation ist, daß der Antennenfuß (9, 14) aus zwei Teilen besteht, nämlich
    - einem unteren Teil (14) oder Sockel, bestehend aus einem zylindrischen Schaft, der an seinem unteren Ende in Befestigungsmitteln (15) und an seinem oberen Ende in einer um 45° geneigten ersten Ebene (16) endet,
    - einem oberen Teil (9), der an seinem unteren Ende eine um 45° geneigte zweite Ebene (17) aufweist, die mit der ersten Ebene (16) in Berührung steht, und der an seinem oberen Ende eine Vorrichtung zum Ankoppeln an den Reflektor (4) und die Quelle (1) aufweist, um eine Azimut-Elevationseinstellung zu ermöglichen,
    daß die Vorrichtung zum Ankoppeln eine Gruppe von zwei ineinandergeschachtelten Konuskörpern (18, 19) aufweist, von denen einer eine relativ zum anderen um ihre Symmetrieachse ΔAZ drehen kann, wobei der untere Konuskörper (18) das obere Ende des oberen Teils (9) des Antennenfußes bildet, während der obere Konuskörper (19) ein Element eines Zwischenstücks ist, das außerdem eine Lagerachse (20) aufweist, deren Symmetrieachse ΔEL senkrecht zu derjenigen ΔAZ des oberen Konuskörpers (9) verläuft und sich zu beiden Seiten derselben erstreckt, und daß zwei Paare von Flanschen (21, 22) vorgesehen sind, die je einen ersten Abschnitt (21), der mit der Rückseite (12) des Reflektors (4) fest verbunden ist, und einen zweiten komplementären Abschnitt (22) aufweisen, um die Lagerachse (20) an der Rückseite (12) so zu befestigen daß eine Drehung um die Achse ΔEL möglich ist, wobei die beiden Paare um die Achse (20) zu beiden Seiten des oberen Konuskörpers (19) angeordnet sind.
  2. Antenne nach Anspruch 1, dadurch gekennzeichnet, daß der untere Konuskörper (18) und der obere Konuskörper (19) mit inneren Verstärkungsrippen (31 und 28) versehen sind.
  3. Antenne nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die beiden Konuskörper (18, 19) mit Löchern (28, 29) versehen sind, welche den Durchtritt einer Schraube (27) zum Einstellen und gegenseitigen Blockieren der Konuskörper (18, 19) ermöglichen.
  4. Antenne nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Träger (13) der Quelle (1) eine abgerundete Form und einen spitz auslaufenden Querschnitt aufweisen, um die Aussendung der vom Reflektor reflektierten Strahlenbündel so wenig wie möglich zu stören.
EP87118617A 1986-12-18 1987-12-15 Nachrichtenübertragungsantenne mit Reflektor Expired - Lifetime EP0274693B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8617758A FR2608846B1 (fr) 1986-12-18 1986-12-18 Antenne de telecommunications a reflecteur
FR8617758 1986-12-18

Publications (2)

Publication Number Publication Date
EP0274693A1 EP0274693A1 (de) 1988-07-20
EP0274693B1 true EP0274693B1 (de) 1992-07-29

Family

ID=9342052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118617A Expired - Lifetime EP0274693B1 (de) 1986-12-18 1987-12-15 Nachrichtenübertragungsantenne mit Reflektor

Country Status (5)

Country Link
US (1) US4825218A (de)
EP (1) EP0274693B1 (de)
JP (1) JPS63172503A (de)
DE (1) DE3780794T2 (de)
FR (1) FR2608846B1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5184144A (en) * 1990-09-25 1993-02-02 Chu Associates, Inc. Ogival cross-section combined microwave waveguide for reflector antenna feed and spar support therefor
JP3667423B2 (ja) * 1996-02-26 2005-07-06 富士通株式会社 アンテナ装置
IT1293337B1 (it) * 1997-03-28 1999-02-25 Tele System Electronic Spa Strutttura di supporto universale particolarmente di una antenna parabolica finalizzata alla regolazione almeno dell'azimut.
FR2761817B1 (fr) * 1997-04-04 2000-01-07 Texas De France Pied universel pour antenne satellite fixe ou motorisee
EP1050919A1 (de) * 1999-04-21 2000-11-08 Raphael Pillosio Befestigungs- und Einstellungsvorrichtung für eine Antenne
DE10024527C1 (de) * 2000-05-18 2001-11-22 Pfleiderer Infrastrukturt Gmbh Antennenbefestigungsvorrichtung für Antennenmast-Plattformen
US6366252B1 (en) 2000-07-24 2002-04-02 Neil D. Terk Method and apparatus for mounting an auxiliary antenna to a reflector antenna
DE10316787A1 (de) 2003-04-11 2004-11-11 Kathrein-Werke Kg Reflektor, insbesondere für eine Mobilfunk-Antenne
DE10316786A1 (de) * 2003-04-11 2004-11-18 Kathrein-Werke Kg Reflektor, insbesondere für eine Mobilfunk-Antenne
ES2644743T3 (es) * 2005-09-27 2017-11-30 Ocular Robotics Pty Limited (Acn 120 262 231) Sistema para el tratamiento de señales de energía
GB2452082A (en) * 2007-08-24 2009-02-25 Vislink Comm Ltd Mount with rotational axes at an oblique angle relative to one another
US9000999B2 (en) 2012-02-09 2015-04-07 Winegard Company Enclosure system for an antenna
WO2017006680A1 (ja) * 2015-07-07 2017-01-12 古野電気株式会社 アンテナ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1020553A (fr) * 1950-06-20 1953-02-09 Raytheon Mfg Co Système d'antenne pour appareils fonctionnant sur microondes
US3076964A (en) * 1960-03-07 1963-02-05 Boeing Co Microwave antenna with adjustable reflector shape and automatically regulated focal distance spacing of radiation element
US3407404A (en) * 1964-10-05 1968-10-22 Bell Telephone Labor Inc Directive microwave antenna capable of rotating about two intersecting axes
FR1544366A (fr) * 1967-11-13 1968-10-31 Maschf Augsburg Nuernberg Ag Support tournant pour radiotélescope avec dispositif d'entraînement
US3914768A (en) * 1974-01-31 1975-10-21 Bell Telephone Labor Inc Multiple-beam Cassegrainian antenna
US4475110A (en) * 1982-01-13 1984-10-02 Scientific-Atlanta, Inc. Bearing structure for antenna
US4490726A (en) * 1982-06-03 1984-12-25 Andrew Corporation Collapsible rooftop microwave antenna with wind loading feature
US4628323A (en) * 1983-11-01 1986-12-09 Crean Robert F Simplified polar mount for satellite tracking antenna

Also Published As

Publication number Publication date
DE3780794D1 (de) 1992-09-03
DE3780794T2 (de) 1993-02-11
EP0274693A1 (de) 1988-07-20
US4825218A (en) 1989-04-25
FR2608846B1 (fr) 1989-03-24
FR2608846A1 (fr) 1988-06-24
JPS63172503A (ja) 1988-07-16

Similar Documents

Publication Publication Date Title
EP0274693B1 (de) Nachrichtenübertragungsantenne mit Reflektor
AU731351B2 (en) Dual-reflector microwave antenna
US4673945A (en) Backfire antenna feeding
EP2416449A1 (de) Parabolantenne
US5606334A (en) Integrated antenna for satellite and terrestrial broadcast reception
FR2641904A1 (fr) Dispositif d&#39;antenne pour une polarisation circulaire
EP0707357B1 (de) Antennensystem mit mehreren Speisesystemen, integriert in einem rauscharmen Umsetzer (LNC)
FR2685131A1 (fr) Antenne de reception a reflecteur fixe pour plusieurs faisceaux de satellite.
EP1181744B1 (de) Antenne mit vertikaler polarisation
EP0995233B1 (de) Frequenzkonverteranordnung für eine parabolantenne
US20050110694A1 (en) Co-Located Multi-Band Antenna
EP0934608B1 (de) Antennensystem für tragbares funkgerät
EP1516393A1 (de) Doppelpolarisations-doppelbandstrahlungseinrichtung
EP0032081B1 (de) Antenne mit einstellbarer Strahlrichtung für einen Nachrichtensatelliten
FR2478378A1 (fr) Support d&#39;antenne de telecommunication par satellite geostationnaire et antenne comportant un tel support
CA2327371C (fr) Source rayonnante pour antenne d&#39;emission et de reception destinee a etre installee a bord d&#39;un satellite
EP0383657B1 (de) Antennensystem zum Empfangen von Direkt-Rundfunk-Übertragungs-Satelliten
FR2685979A1 (fr) Systeme d&#39;antenne.
FR2968848A1 (fr) Antenne a reflecteur parabolique
FR2932016A1 (fr) Antenne autoportante pour station de base et ensemble pour systeme d&#39;antenne integrant une telle antenne.
EP0112205A1 (de) Halterung für eine Fernsehantenne für Satellitenempfang und Einheit bestehend aus einer solchen Halterung und ihrer Antenne
EP3264531A1 (de) Mikrowellen-doppelreflektorantenne
FR2531276A3 (fr) Antenne du type cassegrain a source primaire excentree
FR2909225A1 (fr) Dispositif d&#39;alimentation d&#39;une antenne a reflecteur
EP0561675A1 (de) Empfangsantenne mit einer einzigen Ausrichtung für den Empfang mehrerer Satelliten in verschiedenen orbitalen Lagen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19890118

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL TRANSMISSION PAR FAISCEAUX HERTZIENS A.T.F

17Q First examination report despatched

Effective date: 19910205

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL TELSPACE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 3780794

Country of ref document: DE

Date of ref document: 19920903

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19931231

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940922

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940929

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940930

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19941024

Year of fee payment: 8

EAL Se: european patent in force in sweden

Ref document number: 87118617.7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19950701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19951215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19951216

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19951215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960903

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051215