FR864920A - Aerial radio systems - Google Patents

Aerial radio systems

Info

Publication number
FR864920A
FR864920A FR864920DA FR864920A FR 864920 A FR864920 A FR 864920A FR 864920D A FR864920D A FR 864920DA FR 864920 A FR864920 A FR 864920A
Authority
FR
France
Prior art keywords
radio systems
aerial radio
aerial
systems
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
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR864920A publication Critical patent/FR864920A/en
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
    • 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
FR864920D 1939-04-26 1940-04-15 Aerial radio systems Expired FR864920A (en)

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
FR864920A true FR864920A (en) 1941-05-08

Family

ID=23030211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864920D Expired FR864920A (en) 1939-04-26 1940-04-15 Aerial radio systems

Country Status (5)

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

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
BE456147A (en) * 1943-06-01
FR961093A (en) * 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 (en) * 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 (en) * 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
EP2034557B1 (en) * 2007-09-06 2012-02-01 Delphi Delco Electronics Europe GmbH Antenna for satellite reception
DE102008003532A1 (en) 2007-09-06 2009-03-12 Lindenmeier, Heinz, Prof. Dr. Ing. Antenna for satellite reception
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
GB538036A (en) 1941-07-17
US2283897A (en) 1942-05-26
NL64189C (en)
CH292838A (en) 1953-08-31

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