FR675402A - Perfectionnements aux méthodes et aux appareils radioélectriques à antenne - Google Patents

Perfectionnements aux méthodes et aux appareils radioélectriques à antenne

Info

Publication number
FR675402A
FR675402A FR675402DA FR675402A FR 675402 A FR675402 A FR 675402A FR 675402D A FR675402D A FR 675402DA FR 675402 A FR675402 A FR 675402A
Authority
FR
France
Prior art keywords
methods
radio antenna
antenna devices
devices
radio
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)
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.)
Kolster Brandes Ltd
Original Assignee
Kolster Brandes Ltd
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 Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Application granted granted Critical
Publication of FR675402A publication Critical patent/FR675402A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
    • G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR675402D 1928-05-22 1929-05-18 Perfectionnements aux méthodes et aux appareils radioélectriques à antenne Expired FR675402A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US279633A US1834274A (en) 1928-05-22 1928-05-22 Radio antenna system

Publications (1)

Publication Number Publication Date
FR675402A true FR675402A (fr) 1930-02-10

Family

ID=23069793

Family Applications (1)

Application Number Title Priority Date Filing Date
FR675402D Expired FR675402A (fr) 1928-05-22 1929-05-18 Perfectionnements aux méthodes et aux appareils radioélectriques à antenne

Country Status (2)

Country Link
US (1) US1834274A (fr)
FR (1) FR675402A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593474A (en) * 1944-10-03 1952-04-22 Us Sec War Antenna matching section
US2529202A (en) * 1945-06-29 1950-11-07 Sr Leo Singleton Tisdale Antenna input circuit for radio receivers
US2576929A (en) * 1949-09-02 1951-12-04 Ercolino Michael Direction finding device

Also Published As

Publication number Publication date
US1834274A (en) 1931-12-01

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