NL247291A - - Google Patents

Info

Publication number
NL247291A
NL247291A NL247291DA NL247291A NL 247291 A NL247291 A NL 247291A NL 247291D A NL247291D A NL 247291DA NL 247291 A NL247291 A NL 247291A
Authority
NL
Netherlands
Application number
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.)
Publication of NL247291A publication Critical patent/NL247291A/xx
Priority claimed from FR782448A external-priority patent/FR1219321A/fr

Links

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
    • H01Q19/17—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
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001—Crossed polarisation dual antennas
NL247291D 1958-12-23 NL247291A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR782448A FR1219321A (fr) 1958-12-23 1958-12-23 Nouveau système rayonnant pour ondes ultra-courtes
FR783970A FR1221812A (fr) 1958-12-23 1959-01-14 Nouvel aérien rayonnant plusieurs faisceaux

Publications (1)

Publication Number Publication Date
NL247291A true NL247291A (fr)

Family

ID=26183709

Family Applications (3)

Application Number Title Priority Date Filing Date
NL247291D NL247291A (fr) 1958-12-23
NL246679D NL246679A (fr) 1958-12-23
NL132576D NL132576C (fr) 1958-12-23

Family Applications After (2)

Application Number Title Priority Date Filing Date
NL246679D NL246679A (fr) 1958-12-23
NL132576D NL132576C (fr) 1958-12-23

Country Status (6)

Country Link
US (1) US3102265A (fr)
CH (2) CH387715A (fr)
DE (2) DE1210464B (fr)
FR (1) FR1221812A (fr)
GB (2) GB938928A (fr)
NL (3) NL132576C (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL301079A (fr) * 1962-12-12
US3898667A (en) * 1974-02-06 1975-08-05 Rca Corp Compact frequency reuse antenna
SE412959B (sv) * 1978-03-02 1980-03-24 Saab Scania Ab Sett att bestemma leget for ett antal foremal samt system for utforande av settet
DE3402659A1 (de) * 1984-01-26 1985-08-01 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Reflektorantenne fuer den betrieb in mehreren frequenzbereichen
FR2568062B1 (fr) * 1984-07-17 1986-11-07 Thomson Alcatel Espace Antenne bifrequence a meme couverture de zone a polarisation croisee pour satellites de telecommunications
DE3431986A1 (de) * 1984-08-30 1986-03-06 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Polarisationstrennender reflektor
US4625214A (en) * 1984-10-15 1986-11-25 Rca Corporation Dual gridded reflector structure
DE3609078A1 (de) * 1985-07-26 1987-02-05 Messerschmitt Boelkow Blohm Reflektoranordnung
DE3609084A1 (de) * 1985-07-26 1987-02-05 Messerschmitt Boelkow Blohm Reflektoranordnung
CA1263180A (fr) * 1985-11-12 1989-11-21 Rca Corporation Systeme d'antenne a reflecteur a polarisation lineaire a grille a rejection amelioree des signaux a polarisation transversale
USRE34410E (en) * 1986-08-14 1993-10-19 Hughes Aircraft Company Antenna system for hybrid communication satellite
US4792813A (en) * 1986-08-14 1988-12-20 Hughes Aircraft Company Antenna system for hybrid communications satellite
US7144351B2 (en) * 2002-10-23 2006-12-05 Kastelic Edward P Multi-configurable exercise device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE582007C (de) * 1933-08-07 Ernst Gerhard Dr Anordnung zur Aussendung von mehreren voneinander unabhaengigen und verschiedenen Strahlenkegeln elektrischer Wellen
DE668231C (de) * 1935-05-26 1938-11-28 Julius Pintsch Kom Ges Reflektoranordnung
US2646563A (en) * 1946-09-24 1953-07-21 Us Navy V-beam height indicator
US2790169A (en) * 1949-04-18 1957-04-23 Itt Antenna
CH326809A (de) * 1954-11-11 1957-12-31 Patelhold Patentverwertung Richtantennensystem mit Umlenkspiegeln
FR1219321A (fr) * 1958-12-23 1960-05-17 Cie Francais Thomson Houston Nouveau système rayonnant pour ondes ultra-courtes

Also Published As

Publication number Publication date
US3102265A (en) 1963-08-27
FR1221812A (fr) 1960-06-03
GB938928A (en) 1963-10-09
CH387715A (fr) 1965-02-15
DE1210464B (de) 1966-02-10
GB938930A (en) 1963-10-09
NL246679A (fr)
DE1270134B (de) 1968-06-12
NL132576C (fr)
CH418412A (fr) 1966-08-15

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