NL213688A - - Google Patents

Info

Publication number
NL213688A
NL213688A NL213688DA NL213688A NL 213688 A NL213688 A NL 213688A NL 213688D A NL213688D A NL 213688DA NL 213688 A NL213688 A NL 213688A
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 NL213688A publication Critical patent/NL213688A/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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/66—Radar-tracking systems; Analogous systems
    • G01S13/68—Radar-tracking systems; Analogous systems for angle tracking only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
NL213688D 1957-01-12 NL213688A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL213688 1957-01-12

Publications (1)

Publication Number Publication Date
NL213688A true NL213688A (enrdf_load_stackoverflow)

Family

ID=19872037

Family Applications (1)

Application Number Title Priority Date Filing Date
NL213688D NL213688A (enrdf_load_stackoverflow) 1957-01-12

Country Status (3)

Country Link
DE (1) DE1216389B (enrdf_load_stackoverflow)
GB (1) GB831766A (enrdf_load_stackoverflow)
NL (1) NL213688A (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL176459C (nl) * 1953-02-27 Pfizer Farmaceutisch preparaat met remmende werking op aldose-reductase, alsmede tricyclisch, gecondenseerd heterocyclisch imide.
NL174216C (nl) 1954-02-26 Procter & Gamble Werkwijze voor het vervaardigen van een koffieprodukt.
DE1087187B (de) 1956-08-07 1960-08-18 Hollandse Signaalapparaten Bv Radarantenne mit zwei nicht gleichzeitig wirksamen Strahlern

Also Published As

Publication number Publication date
GB831766A (en) 1960-03-30
DE1216389C2 (enrdf_load_stackoverflow) 1966-12-08
DE1216389B (de) 1966-05-12

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