BE474941A - - Google Patents

Info

Publication number
BE474941A
BE474941A BE474941DA BE474941A BE 474941 A BE474941 A BE 474941A BE 474941D A BE474941D A BE 474941DA BE 474941 A BE474941 A BE 474941A
Authority
BE
Belgium
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 BE474941A publication Critical patent/BE474941A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • 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
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Particle Accelerators (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
BE474941D 1941-10-30 BE474941A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US417152A US2407250A (en) 1941-10-30 1941-10-30 Directive antenna

Publications (1)

Publication Number Publication Date
BE474941A true BE474941A (xx)

Family

ID=23652789

Family Applications (1)

Application Number Title Priority Date Filing Date
BE474941D BE474941A (xx) 1941-10-30

Country Status (4)

Country Link
US (1) US2407250A (xx)
BE (1) BE474941A (xx)
FR (1) FR951025A (xx)
GB (1) GB592490A (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597862A (en) * 1945-05-03 1952-05-27 John H Greig Electronic lobing
US2539594A (en) * 1948-07-17 1951-01-30 Robert H Rines System and method of communication
US2641702A (en) * 1948-10-22 1953-06-09 Int Standard Electric Corp Control of wave length in wave guide and coaxial lines
US2688744A (en) * 1948-11-12 1954-09-07 Philco Corp Means for controlling antenna characteristics in object locating systems of the reflection type
US3010105A (en) * 1949-10-06 1961-11-21 Westinghouse Electric Corp Electrical lobing of antenna feed
US3127608A (en) * 1956-08-06 1964-03-31 Gen Electric Object camouflage method and apparatus
US2988741A (en) * 1957-01-30 1961-06-13 Goodyear Aircraft Corp Electronic scanning antenna
US2886811A (en) * 1957-06-07 1959-05-12 Jr Ernest Harrison Electromagnetic beam scanning and reflection
US3375519A (en) * 1960-05-19 1968-03-26 Litton Ind Of Maryland Inc Scanning reflector
US3153787A (en) * 1961-04-10 1964-10-20 Radiation Inc Scanning antenna with power modulation
US3222601A (en) * 1962-07-10 1965-12-07 Martin Marietta Corp Antenna beam scanner
US3238531A (en) * 1963-03-12 1966-03-01 Thompson Ramo Wooldridge Inc Electronically steerable narrow beam antenna system utilizing dipolar resonant plasma columns

Also Published As

Publication number Publication date
GB592490A (en) 1947-09-19
FR951025A (fr) 1949-10-13
US2407250A (en) 1946-09-10

Similar Documents

Publication Publication Date Title
BE442109A (xx)
NL59890C (xx)
FR961704A (xx)
BE442850A (xx)
BE442867A (xx)
NL59317C (xx)
BE448002A (xx)
BE447223A (xx)
BE445745A (xx)
BE444167A (xx)
BE443653A (xx)
BE443437A (xx)
BE443410A (xx)
BE443268A (xx)
BE443255A (xx)
BE443226A (xx)
BE443220A (xx)
BE443217A (xx)
BE443214A (xx)
BE443150A (xx)
BE443094A (xx)
BE443029A (xx)
BE443017A (xx)
BE443016A (xx)
BE442990A (xx)