FR931309A - Perfectionnements aux systèmes d'antennes dirigées - Google Patents

Perfectionnements aux systèmes d'antennes dirigées

Info

Publication number
FR931309A
FR931309A FR931309DA FR931309A FR 931309 A FR931309 A FR 931309A FR 931309D A FR931309D A FR 931309DA FR 931309 A FR931309 A FR 931309A
Authority
FR
France
Prior art keywords
antenna systems
directed antenna
directed
systems
antenna
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
English (en)
French (fr)
Inventor
Edward Hill Ullrich
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR931309A publication Critical patent/FR931309A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR931309D 1940-09-25 1946-07-25 Perfectionnements aux systèmes d'antennes dirigées Expired FR931309A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1455740A GB577853A (en) 1940-09-25 1940-09-25 Means for overcoming the effects of earth reflections in directional antenna systems

Publications (1)

Publication Number Publication Date
FR931309A true FR931309A (fr) 1948-02-19

Family

ID=10043382

Family Applications (1)

Application Number Title Priority Date Filing Date
FR931309D Expired FR931309A (fr) 1940-09-25 1946-07-25 Perfectionnements aux systèmes d'antennes dirigées

Country Status (4)

Country Link
BE (1) BE471723A (enrdf_load_stackoverflow)
ES (1) ES176095A1 (enrdf_load_stackoverflow)
FR (1) FR931309A (enrdf_load_stackoverflow)
GB (1) GB577853A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
ES176095A1 (es) 1947-01-16
BE471723A (enrdf_load_stackoverflow)
GB577853A (en) 1946-06-04

Similar Documents

Publication Publication Date Title
FR836633A (fr) Systèmes d'antennes
FR867851A (fr) Systèmes d'aériens radioélectriques
FR939004A (fr) Perfectionnements aux systèmes d'antennes
FR933317A (fr) Perfectionnements aux systèmes radio-télégraphiques
FR928707A (fr) Perfectionnements aux systèmes d'antennes
FR951025A (fr) Systèmes d'antennes dirigées
FR971483A (fr) Perfectionnements aux radiateurs d'ondes radioélectriques
FR875965A (fr) Perfectionnements apportés aux systèmes d'antenne
FR858648A (fr) Perfectionnements aux systèmes d'antennes radioélectriques
FR971572A (fr) Perfectionnements aux véhicules
FR932189A (fr) Perfectionnements aux systèmes téléphoniques
FR951639A (fr) Perfectionnements apportés aux tabulatrices
FR851596A (fr) Systèmes d'antennes
FR931309A (fr) Perfectionnements aux systèmes d'antennes dirigées
FR932833A (fr) Perfectionnements aux systèmes d'atterrissage radio-électrique
FR938224A (fr) Perfectionnements aux systèmes d'antennes
FR933245A (fr) Perfectionnements aux systèmes d'antennes
FR932229A (fr) Perfectionnements aux systèmes d'antennes
FR941507A (fr) Systèmes d'antennes
FR971975A (fr) Perfectionnements aux carrosseries
FR868768A (fr) Système d'antenne
FR55353E (fr) Perfectionnements aux systèmes d'orientation
FR937959A (fr) Perfectionnements aux systèmes téléphoniques
FR837364A (fr) Perfectionnements aux systèmes d'antennes
FR971272A (fr) Perfectionnements aux systèmes radiogoniométriques