FR971336A - Aircraft tracking using ultra-short electromagnetic waves - Google Patents

Aircraft tracking using ultra-short electromagnetic waves

Info

Publication number
FR971336A
FR971336A FR971336DA FR971336A FR 971336 A FR971336 A FR 971336A FR 971336D A FR971336D A FR 971336DA FR 971336 A FR971336 A FR 971336A
Authority
FR
France
Prior art keywords
ultra
electromagnetic waves
aircraft tracking
short electromagnetic
short
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
Other languages
French (fr)
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR971336A publication Critical patent/FR971336A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/04—Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna
    • 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
FR971336D 1939-11-09 1939-11-09 Aircraft tracking using ultra-short electromagnetic waves Expired FR971336A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971336T 1939-11-09

Publications (1)

Publication Number Publication Date
FR971336A true FR971336A (en) 1951-01-16

Family

ID=9512613

Family Applications (1)

Application Number Title Priority Date Filing Date
FR971336D Expired FR971336A (en) 1939-11-09 1939-11-09 Aircraft tracking using ultra-short electromagnetic waves

Country Status (1)

Country Link
FR (1) FR971336A (en)

Similar Documents

Publication Publication Date Title
FR845844A (en) Electromagnetic vibrators
FR864302A (en) Oscillating circuit for short electromagnetic waves
FR855244A (en) Methods and means of guidance by electromagnetic waves
FR870791A (en) Ultra-short wave generator
FR870440A (en) Electric wave amplifiers
FR868324A (en) Ultra-short wave generator tube
FR971336A (en) Aircraft tracking using ultra-short electromagnetic waves
FR849835A (en) Improvements to ultra-short wave assemblies
FR870095A (en) Electric wave amplifiers
FR877613A (en) ultra-short wave transmitter in reaction arrangement
FR972360A (en) Advanced electromagnetic clocks
FR819478A (en) Radioguiding by radio waves
FR885804A (en) Ultra-short wave generator
FR887978A (en) Ultra-short wave assembly
FR843989A (en) Electromagnetic conveyor device
CH232060A (en) Amplifier circuit for ultra-short waves.
FR874272A (en) Electromagnetic fertilizer
FR965975A (en) Electromagnetic device
AT169050B (en) Loop antenna
FR857828A (en) short wave transmitter
FR851390A (en) Bracelet
FR854307A (en) Rigid back for suspenders
FR855783A (en) Aircraft
FR868873A (en) Tracking receiver
AT175288B (en) Ultra high frequency amplifier