Nothing Special   »   [go: up one dir, main page]

EP0084420A3 - An antenna, particularly for the reception of satellite communications - Google Patents

An antenna, particularly for the reception of satellite communications Download PDF

Info

Publication number
EP0084420A3
EP0084420A3 EP83300106A EP83300106A EP0084420A3 EP 0084420 A3 EP0084420 A3 EP 0084420A3 EP 83300106 A EP83300106 A EP 83300106A EP 83300106 A EP83300106 A EP 83300106A EP 0084420 A3 EP0084420 A3 EP 0084420A3
Authority
EP
European Patent Office
Prior art keywords
antenna
reception
providing
satellite communications
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.)
Withdrawn
Application number
EP83300106A
Other languages
German (de)
French (fr)
Other versions
EP0084420A2 (en
Inventor
Graham Leslie Maile
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.)
PA Consulting Services Ltd
Original Assignee
PA Consulting Services Ltd
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 PA Consulting Services Ltd filed Critical PA Consulting Services Ltd
Publication of EP0084420A2 publication Critical patent/EP0084420A2/en
Publication of EP0084420A3 publication Critical patent/EP0084420A3/en
Withdrawn legal-status Critical Current

Links

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
    • H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
    • 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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

A groundstation antenna comprises a body 1 of a foamed plastics material having on a rear parabolic surface a metallised coating (3) providing a main reflecting surface. A front surface of the body (1) has on a hyperbolic surface a metallised coating (2) providing a sub-reflector. A feed horn is received within a rear recess (4) in the body 1. The main reflector and the subreflector are thus accurately located with respect to one another and protected from the weather. In an alternative embodiment two casing mem­ bers are joined at their outer peripheries to form an antenna of enclosed, hollow shell-like form.
EP83300106A 1982-01-19 1983-01-10 An antenna, particularly for the reception of satellite communications Withdrawn EP0084420A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8201417 1982-01-19
GB8201417 1982-01-19
GB8203068 1982-02-03
GB8203068 1982-02-03

Publications (2)

Publication Number Publication Date
EP0084420A2 EP0084420A2 (en) 1983-07-27
EP0084420A3 true EP0084420A3 (en) 1983-08-03

Family

ID=26281750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300106A Withdrawn EP0084420A3 (en) 1982-01-19 1983-01-10 An antenna, particularly for the reception of satellite communications

Country Status (1)

Country Link
EP (1) EP0084420A3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977407A (en) * 1981-07-23 1990-12-11 Crane Patrick E Optical collimator
EP0108515B1 (en) * 1982-10-11 1989-05-31 Cambridge Electronic Industries plc Dish aerial
US4581615A (en) * 1983-02-08 1986-04-08 Levy Stanley P Double reflector antenna with integral radome reflector support
EP0170726A1 (en) * 1984-07-13 1986-02-12 Siemens Aktiengesellschaft Dual reflector directional antenna
GB8431800D0 (en) * 1984-12-17 1985-01-30 Shamah Plastics Ltd M Antenna systems
GB8817885D0 (en) * 1988-07-27 1988-09-01 British Telecomm Antenna
EP0507440A1 (en) * 1991-02-25 1992-10-07 Gerald Alexander Bayne Antenna
US8259028B2 (en) * 2009-12-11 2012-09-04 Andrew Llc Reflector antenna radome attachment band clamp
US10263343B2 (en) 2016-03-10 2019-04-16 Telefonaktiebolaget Lm Ericsson (Publ) Reflector antenna arrangement
CN112635965A (en) * 2020-12-31 2021-04-09 西安恒达微波技术开发有限公司 Double-circular polarization Cassegrain antenna applied to LEO low-orbit satellite communication

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296685A (en) * 1962-05-31 1967-01-10 Sylvania Electric Prod Method of making dielectric foam antenna
GB1100391A (en) * 1965-01-12 1968-01-24 Malifaud Pierre Receivers for directional waves
US3374482A (en) * 1958-09-30 1968-03-19 Navy Usa Radar dish in plastic casement
US3430244A (en) * 1964-11-25 1969-02-25 Radiation Inc Reflector antennas
GB1531242A (en) * 1975-01-21 1978-11-08 Post Office Splash plate feed assemblies for aerials
DE2842298A1 (en) * 1978-09-28 1980-05-22 Siemens Ag Directional antenna for very short waves - has secondary reflector formed by central metal part on dielectric cover of main reflector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374482A (en) * 1958-09-30 1968-03-19 Navy Usa Radar dish in plastic casement
US3296685A (en) * 1962-05-31 1967-01-10 Sylvania Electric Prod Method of making dielectric foam antenna
US3430244A (en) * 1964-11-25 1969-02-25 Radiation Inc Reflector antennas
GB1100391A (en) * 1965-01-12 1968-01-24 Malifaud Pierre Receivers for directional waves
GB1531242A (en) * 1975-01-21 1978-11-08 Post Office Splash plate feed assemblies for aerials
DE2842298A1 (en) * 1978-09-28 1980-05-22 Siemens Ag Directional antenna for very short waves - has secondary reflector formed by central metal part on dielectric cover of main reflector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTRICAL DESIGN NEWS, no. 12, October 1965, pages 6-7, Cahners, Denver, USA "Between feed and reflector: plastic" *

Also Published As

Publication number Publication date
EP0084420A2 (en) 1983-07-27

Similar Documents

Publication Publication Date Title
IE45106L (en) Rotationally-symmetrical antenna
Tanaka et al. Elimination of cross polarization in offset dual-reflector antennas
EP0084420A3 (en) An antenna, particularly for the reception of satellite communications
JPS54147757A (en) Parabolic radio reflecting antenna having optimum radiating characteristics
GB1378114A (en) Antenna system
SE9904814L (en) Sub reflector, feeder and reflector antenna including such a sub reflector.
US4282530A (en) Cylindrical paraboloid weather cover for a horn reflector antenna with wave absorbing means
FR2729791B1 (en) DEVICE FOR REDUCING THE RADOME EFFECT WITH A BROADBAND ANTENNA WITH SURFACE RADIATION, AND REDUCING THE EQUIVALENT REFLECTING SURFACE OF THE ASSEMBLY
GB1252190A (en)
GB1326210A (en) Antenna using at least one reflector
GB1163156A (en) Improvements in or relating to Paraboloidal Antennae with Counter-Reflectors.
AU5507599A (en) Bifocal planar antenna
EP0114797A3 (en) Micro wave antenna
GB1500689A (en) Radar antenna systems
IE42362L (en) Cassegrain antenna
Lee Geometrical optics and GTD analysis of subreflectors in Cassegrain and Gregorian reflector antennas
EP0196734A3 (en) Cassegrain antenna for tvro application
JPS57154909A (en) Frequency band shared antenna
CA2080934A1 (en) Antenna for a radio base station
BALLING Study of dual beam antenna systems for the data relay satellite, volume 1(Final Report)
JP3005229B2 (en) Mirror modified antenna
ADATIA et al. Definition of an antenna configuration for TVBS coverage of small countries[Final Report]
GRAHAM The polarisation characteristics of offset Cassegrain aerials(reflectors design)
Ladanyi-Turoczy Theoretical and practical problems of development of parabolic antennas in the frequency range above 10 GHz.
KR950010165A (en) Casserole Antenna with Secondary Reflector

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI SE

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI SE

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

Owner name: P.A. CONSULTING SERVICES LIMITED

17P Request for examination filed

Effective date: 19831217

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19860405

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MAILE, GRAHAM LESLIE