GB643738A - Improvements in directional aerials - Google Patents

Improvements in directional aerials

Info

Publication number
GB643738A
GB643738A GB22667/47A GB2266747A GB643738A GB 643738 A GB643738 A GB 643738A GB 22667/47 A GB22667/47 A GB 22667/47A GB 2266747 A GB2266747 A GB 2266747A GB 643738 A GB643738 A GB 643738A
Authority
GB
United Kingdom
Prior art keywords
radiation
reflector
polarized
axis
section
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
Application number
GB22667/47A
Other languages
English (en)
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Publication of GB643738A publication Critical patent/GB643738A/en
Expired legal-status Critical Current

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

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GB22667/47A 1940-02-29 1947-08-14 Improvements in directional aerials Expired GB643738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971260T 1940-02-29

Publications (1)

Publication Number Publication Date
GB643738A true GB643738A (en) 1950-09-27

Family

ID=9512011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22667/47A Expired GB643738A (en) 1940-02-29 1947-08-14 Improvements in directional aerials

Country Status (5)

Country Link
US (1) US2559092A (enrdf_load_stackoverflow)
CH (1) CH268704A (enrdf_load_stackoverflow)
FR (1) FR971260A (enrdf_load_stackoverflow)
GB (1) GB643738A (enrdf_load_stackoverflow)
NL (1) NL72107C (enrdf_load_stackoverflow)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1345056A (en) * 1916-08-02 1920-06-29 Winston Overton Headlight
US1559212A (en) * 1920-05-03 1925-10-27 Winston Overton Reflector for headlights
US1735377A (en) * 1927-10-19 1929-11-12 Martha W Caughlan Reflecting surface
US1932469A (en) * 1929-12-02 1933-10-31 Telefunken Gmbh Short wave signaling
US1805886A (en) * 1930-10-31 1931-05-19 Conrad K Rizer Headlight
NL38496C (enrdf_load_stackoverflow) * 1932-07-06
GB436355A (en) * 1934-04-13 1935-10-09 Meaf Mach En Apparaten Fab Nv A new or improved method of and apparatus for clustering short and ultra-short electro-magnetic waves
FR781464A (fr) * 1934-06-30 1935-05-16 Phare pour véhicules automobiles, vélos, avions, etc.
DE706661C (de) * 1936-01-17 1941-05-31 Telefunken Gmbh Richtsendeanlage mit zwei voneinander unabhaengigen Richtcharakteristiken
US2423073A (en) * 1941-06-13 1947-06-24 Standard Telephones Cables Ltd Electromagnetic wave radiator
NL73349C (enrdf_load_stackoverflow) * 1941-11-28
US2408373A (en) * 1945-01-13 1946-10-01 Chu Lan Jen Antenna

Also Published As

Publication number Publication date
CH268704A (fr) 1950-05-31
FR971260A (fr) 1951-01-15
US2559092A (en) 1951-07-03
NL72107C (enrdf_load_stackoverflow)

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