NL180967C - Stralingscorrectie-inrichting voor een antenne met ten minste twee onafhankelijke electromagnetische stralingbronnen werkend bij verschillende frequenties. - Google Patents

Stralingscorrectie-inrichting voor een antenne met ten minste twee onafhankelijke electromagnetische stralingbronnen werkend bij verschillende frequenties.

Info

Publication number
NL180967C
NL180967C NLAANVRAGE7805375,A NL7805375A NL180967C NL 180967 C NL180967 C NL 180967C NL 7805375 A NL7805375 A NL 7805375A NL 180967 C NL180967 C NL 180967C
Authority
NL
Netherlands
Prior art keywords
antenna
different frequencies
correction device
sources operating
electromagnetic radiation
Prior art date
Application number
NLAANVRAGE7805375,A
Other languages
English (en)
Other versions
NL7805375A (nl
NL180967B (nl
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Publication of NL7805375A publication Critical patent/NL7805375A/nl
Publication of NL180967B publication Critical patent/NL180967B/nl
Application granted granted Critical
Publication of NL180967C publication Critical patent/NL180967C/nl

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
NLAANVRAGE7805375,A 1977-05-18 1978-05-18 Stralingscorrectie-inrichting voor een antenne met ten minste twee onafhankelijke electromagnetische stralingbronnen werkend bij verschillende frequenties. NL180967C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7715305A FR2391570A1 (fr) 1977-05-18 1977-05-18 Dispositif de correction du rayonnement des aeriens multifrequences et aeriens comportant un tel dispositif

Publications (3)

Publication Number Publication Date
NL7805375A NL7805375A (nl) 1978-11-21
NL180967B NL180967B (nl) 1986-12-16
NL180967C true NL180967C (nl) 1987-05-18

Family

ID=9191017

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7805375,A NL180967C (nl) 1977-05-18 1978-05-18 Stralingscorrectie-inrichting voor een antenne met ten minste twee onafhankelijke electromagnetische stralingbronnen werkend bij verschillende frequenties.

Country Status (6)

Country Link
US (1) US4207573A (nl)
DE (1) DE2821699C2 (nl)
FR (1) FR2391570A1 (nl)
GB (1) GB1588068A (nl)
IT (1) IT1102673B (nl)
NL (1) NL180967C (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57125864A (en) * 1981-01-29 1982-08-05 Toshiba Corp Antenna device
DE3608413A1 (de) * 1986-03-13 1987-09-17 Siemens Ag Richtantennenanordnung
US4821046A (en) * 1986-08-21 1989-04-11 Wilkes Brian J Dual band feed system
US7362279B2 (en) * 2003-12-31 2008-04-22 Brunello Locatori Method and device for TV receiving and internet transreceiving on a satellite antenna
ITMI20051167A1 (it) * 2005-06-21 2006-12-22 Claber Spa "centralina elettronica multipla per il comando differenziato di elettrovalvole in impianti di irrigazione"
US9966662B2 (en) 2015-09-30 2018-05-08 City University Of Hong Kong Antenna

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1219279A (fr) * 1958-12-20 1960-05-17 Sagem Antenne perfectionnée à très large bande
DE1200387B (de) * 1962-04-24 1965-09-09 Telefunken Patent Richtantennenkombination
US3176301A (en) * 1963-02-14 1965-03-30 Richard S Wellons Plural horns at focus of parabolic reflector with shields to reduce spillover and side lobes
FR2096670B1 (nl) * 1970-05-20 1974-03-15 Thomson Csf
US3803617A (en) * 1972-04-14 1974-04-09 Nasa High efficiency multifrequency feed

Also Published As

Publication number Publication date
DE2821699A1 (de) 1978-11-23
DE2821699C2 (de) 1983-10-27
IT1102673B (it) 1985-10-07
FR2391570B1 (nl) 1980-09-19
GB1588068A (en) 1981-04-15
US4207573A (en) 1980-06-10
NL7805375A (nl) 1978-11-21
NL180967B (nl) 1986-12-16
FR2391570A1 (fr) 1978-12-15
IT7849377A0 (it) 1978-05-16

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee