NL64189C - - Google Patents

Info

Publication number
NL64189C
NL64189C NL64189DA NL64189C NL 64189 C NL64189 C NL 64189C NL 64189D A NL64189D A NL 64189DA NL 64189 C NL64189 C NL 64189C
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 NL64189C publication Critical patent/NL64189C/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

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)
NL64189D 1939-04-26 NL64189C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US270173A US2283897A (en) 1939-04-26 1939-04-26 Antenna system

Publications (1)

Publication Number Publication Date
NL64189C true NL64189C (zh)

Family

ID=23030211

Family Applications (1)

Application Number Title Priority Date Filing Date
NL64189D NL64189C (zh) 1939-04-26

Country Status (5)

Country Link
US (1) US2283897A (zh)
CH (1) CH292838A (zh)
FR (1) FR864920A (zh)
GB (1) GB538036A (zh)
NL (1) NL64189C (zh)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424079A (en) * 1943-04-19 1947-07-15 Gen Electric System of communication
US2534624A (en) * 1943-05-29 1950-12-19 Hartford Nat Bank & Trust Co Transmitting device
NL67941C (zh) * 1943-06-01
FR961093A (zh) * 1943-06-12 1950-05-03
US2513338A (en) * 1943-11-01 1950-07-04 Sperry Corp Directive antenna system
US2511899A (en) * 1944-12-30 1950-06-20 Rca Corp Antenna system
US2465379A (en) * 1945-01-27 1949-03-29 Standard Telephones Cables Ltd Antenna unit
US2557994A (en) * 1945-10-12 1951-06-26 Standard Telephones Cables Ltd Object detector
US2817835A (en) * 1945-11-29 1957-12-24 Jr Harvey R Worthington Lobe comparison systems
US2648001A (en) * 1946-04-11 1953-08-04 Us Navy Ring type antenna
US2618746A (en) * 1948-08-13 1952-11-18 Rca Corp Antenna system
BE491490A (zh) * 1948-10-04
US2650303A (en) * 1949-07-01 1953-08-25 Motorola Inc High-frequency loop antenna system
US2650304A (en) * 1949-09-10 1953-08-25 Motorola Inc Television antenna
US2825061A (en) * 1951-11-21 1958-02-25 Gabriel Co Wave radiator
US2671852A (en) * 1951-12-05 1954-03-09 John J Bubbers Resonant antenna
US2749544A (en) * 1953-05-29 1956-06-05 Gen Dynamics Corp Omnidirectional antenna
US3168694A (en) * 1961-07-24 1965-02-02 Donald W Slattery Geophysical survey systems using polarized electromagnetic waves
US3427624A (en) * 1966-07-13 1969-02-11 Northrop Corp Low profile antenna having horizontal tunable top loading member
FR2036909B1 (zh) * 1969-04-17 1974-02-22 Thomson Csf
US3967282A (en) * 1974-01-30 1976-06-29 The Ohio State University Underground pipe detector
US4338606A (en) * 1978-12-21 1982-07-06 Sony Corporation Antenna system with variable directivity
US6515632B1 (en) 2001-06-06 2003-02-04 Tdk Rf Solutions Multiply-fed loop antenna
US7639195B2 (en) * 2004-11-22 2009-12-29 Agency For Science, Technology And Research Antennas for ultra-wideband applications
DE102008003532A1 (de) 2007-09-06 2009-03-12 Lindenmeier, Heinz, Prof. Dr. Ing. Antenne für den Satellitenempfang
EP2034557B1 (de) * 2007-09-06 2012-02-01 Delphi Delco Electronics Europe GmbH Antenne für den Satellitenempfang
US7825866B1 (en) 2007-09-28 2010-11-02 Joseph Klein Omni directional space-fed antenna with loop patterns
US20140313093A1 (en) 2013-04-17 2014-10-23 Telefonaktiebolaget L M Ericsson Horizontally polarized omni-directional antenna apparatus and method

Also Published As

Publication number Publication date
US2283897A (en) 1942-05-26
GB538036A (en) 1941-07-17
FR864920A (fr) 1941-05-08
CH292838A (fr) 1953-08-31

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