IT1200024B - Sistema irradiante a diversita' angloare per radiocollegamenti a diffusione troposferica - Google Patents

Sistema irradiante a diversita' angloare per radiocollegamenti a diffusione troposferica

Info

Publication number
IT1200024B
IT1200024B IT21777/86A IT2177786A IT1200024B IT 1200024 B IT1200024 B IT 1200024B IT 21777/86 A IT21777/86 A IT 21777/86A IT 2177786 A IT2177786 A IT 2177786A IT 1200024 B IT1200024 B IT 1200024B
Authority
IT
Italy
Prior art keywords
diversity
antenna horns
tropheric
angloar
diffusion
Prior art date
Application number
IT21777/86A
Other languages
English (en)
Other versions
IT8621777A0 (it
Inventor
Carlo Campora
Elio Deponti
Original Assignee
Gte Telecom Spa
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 Gte Telecom Spa filed Critical Gte Telecom Spa
Priority to IT21777/86A priority Critical patent/IT1200024B/it
Publication of IT8621777A0 publication Critical patent/IT8621777A0/it
Priority to EP87201253A priority patent/EP0261699B1/en
Priority to ES198787201253T priority patent/ES2041675T3/es
Priority to AT87201253T priority patent/ATE87772T1/de
Priority to DE8787201253T priority patent/DE3785122T2/de
Priority to AU75607/87A priority patent/AU599397B2/en
Priority to US07/099,365 priority patent/US4794400A/en
Application granted granted Critical
Publication of IT1200024B publication Critical patent/IT1200024B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
    • 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
    • H01Q19/17—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 comprising two or more radiating elements
    • 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

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Radio Transmission System (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radio Relay Systems (AREA)
IT21777/86A 1986-09-22 1986-09-22 Sistema irradiante a diversita' angloare per radiocollegamenti a diffusione troposferica IT1200024B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT21777/86A IT1200024B (it) 1986-09-22 1986-09-22 Sistema irradiante a diversita' angloare per radiocollegamenti a diffusione troposferica
EP87201253A EP0261699B1 (en) 1986-09-22 1987-07-01 Angular-diversity radiosystem for tropospheric-scatter radio links
ES198787201253T ES2041675T3 (es) 1986-09-22 1987-07-01 Sistema de radio de diversidad angular para radioenlaces de dispersion troposferica.
AT87201253T ATE87772T1 (de) 1986-09-22 1987-07-01 Winkeldiversity-radiosystem fuer troposphaerenfunkverbindungen.
DE8787201253T DE3785122T2 (de) 1986-09-22 1987-07-01 Winkeldiversity-radiosystem fuer troposphaerenfunkverbindungen.
AU75607/87A AU599397B2 (en) 1986-09-22 1987-07-13 Angular-diversity radiating system for tropospheric-scatter radio links
US07/099,365 US4794400A (en) 1986-09-22 1987-09-21 Angular-diversity radiating system for tropospheric-scatter radio links

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21777/86A IT1200024B (it) 1986-09-22 1986-09-22 Sistema irradiante a diversita' angloare per radiocollegamenti a diffusione troposferica

Publications (2)

Publication Number Publication Date
IT8621777A0 IT8621777A0 (it) 1986-09-22
IT1200024B true IT1200024B (it) 1989-01-05

Family

ID=11186710

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21777/86A IT1200024B (it) 1986-09-22 1986-09-22 Sistema irradiante a diversita' angloare per radiocollegamenti a diffusione troposferica

Country Status (7)

Country Link
US (1) US4794400A (it)
EP (1) EP0261699B1 (it)
AT (1) ATE87772T1 (it)
AU (1) AU599397B2 (it)
DE (1) DE3785122T2 (it)
ES (1) ES2041675T3 (it)
IT (1) IT1200024B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740651A1 (de) * 1987-12-01 1989-06-22 Messerschmitt Boelkow Blohm Vorrichtung zur einstellung der polarisationsebene
DE4009322A1 (de) * 1990-03-23 1991-09-26 Ant Nachrichtentech Speisesystem einer fuer winkeldiversity-betrieb vorgesehenen reflektorantenne
JPH07212137A (ja) * 1994-01-14 1995-08-11 Yokowo Co Ltd コンバータ
US6121939A (en) * 1996-11-15 2000-09-19 Yagi Antenna Co., Ltd. Multibeam antenna
US7623084B2 (en) * 2006-09-12 2009-11-24 General Dynamics C4 Systems, Inc. Angular diversity antenna system and feed assembly for same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988736A (en) * 1974-11-29 1976-10-26 Communications Satellite Corporation (Comsat) Steerable feed for toroidal antennas
DE2752680A1 (de) * 1977-11-25 1979-05-31 Siemens Ag Richtantenne fuer sehr kurze elektromagnetische wellen
DE2942557C2 (de) * 1979-10-22 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Richtantennenanordnung bzw. Richtantenne für einen Störsender
IT1197781B (it) * 1986-07-18 1988-12-06 Gte Telecom Spa Sistema irradiante a diversita' angolare per radiocollegamenti a diffusione troposferica

Also Published As

Publication number Publication date
EP0261699A2 (en) 1988-03-30
DE3785122D1 (de) 1993-05-06
ATE87772T1 (de) 1993-04-15
AU7560787A (en) 1988-03-24
EP0261699A3 (en) 1989-11-08
US4794400A (en) 1988-12-27
EP0261699B1 (en) 1993-03-31
DE3785122T2 (de) 1993-09-02
IT8621777A0 (it) 1986-09-22
ES2041675T3 (es) 1993-12-01
AU599397B2 (en) 1990-07-19

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960924