NL26887C - - Google Patents

Info

Publication number
NL26887C
NL26887C NL26887DA NL26887C NL 26887 C NL26887 C NL 26887C NL 26887D A NL26887D A NL 26887DA NL 26887 C NL26887 C NL 26887C
Authority
NL
Netherlands
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 NL26887C publication Critical patent/NL26887C/xx

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure

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)
NL26887D 1928-11-19 NL26887C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US320357A US1867232A (en) 1928-11-19 1928-11-19 Wireless receiving system

Publications (1)

Publication Number Publication Date
NL26887C true NL26887C (zh)

Family

ID=23246045

Family Applications (1)

Application Number Title Priority Date Filing Date
NL26887D NL26887C (zh) 1928-11-19

Country Status (3)

Country Link
US (1) US1867232A (zh)
DE (1) DE518654C (zh)
NL (1) NL26887C (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE475387A (zh) * 1940-02-09

Also Published As

Publication number Publication date
DE518654C (de) 1931-02-18
US1867232A (en) 1932-07-12

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