BE442118A - - Google Patents

Info

Publication number
BE442118A
BE442118A BE442118DA BE442118A BE 442118 A BE442118 A BE 442118A BE 442118D A BE442118D A BE 442118DA BE 442118 A BE442118 A BE 442118A
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 BE442118A publication Critical patent/BE442118A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/24—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1472—Control of position or direction using feedback using an analogue comparing device with potentiometer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/10—Telescopic elements
    • H01Q1/103—Latching means; ensuring extension or retraction thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
BE442118D 1940-02-29 BE442118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US321381A US2283524A (en) 1940-02-29 1940-02-29 Adjustable antenna device

Publications (1)

Publication Number Publication Date
BE442118A true BE442118A (en)

Family

ID=23250379

Family Applications (1)

Application Number Title Priority Date Filing Date
BE442118D BE442118A (en) 1940-02-29

Country Status (5)

Country Link
US (1) US2283524A (en)
BE (1) BE442118A (en)
FR (1) FR882607A (en)
GB (2) GB548965A (en)
NL (1) NL62302C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415427A (en) * 1942-06-22 1947-02-11 Electronic Lab Inc Radio-frequency transmitter
US2484817A (en) * 1942-12-15 1949-10-18 Armond James Keller De Antenna for aircraft
US2472904A (en) * 1943-12-24 1949-06-14 Firm Autophon Ag Transmitting antenna with automatic tuning, particularly for aircraft wireless
US2430173A (en) * 1944-10-17 1947-11-04 Richard R Stoddart Remotely controlled antenna tuning apparatus
US2492989A (en) * 1946-02-09 1950-01-03 Farnsworth Res Corp Directive ultra high frequency antenna
US2569810A (en) * 1949-04-02 1951-10-02 Teleflex Antenna Co Folded dipole antenna
US2574733A (en) * 1949-04-16 1951-11-13 Tele Tone Radio Corp Tape antenna system
US3268898A (en) * 1962-12-12 1966-08-23 Avco Corp Demountable variable length antenna
FR2061538B1 (en) * 1969-05-07 1973-12-21 Commissariat Energie Atomique
FR2523232B1 (en) * 1982-03-09 1985-09-20 Thomson Csf TELESCOPIC COLUMN WITH CYLINDRICAL TUBES
GB2161026A (en) * 1984-06-29 1986-01-02 Racal Antennas Limited Antenna arrangements
JPH09205384A (en) * 1996-01-29 1997-08-05 Nec Corp Portable radio equipment

Also Published As

Publication number Publication date
GB548202A (en) 1942-09-30
GB548965A (en) 1942-10-30
FR882607A (en) 1943-06-25
US2283524A (en) 1942-05-19
NL62302C (en)

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