BE499425A - - Google Patents

Info

Publication number
BE499425A
BE499425A BE499425DA BE499425A BE 499425 A BE499425 A BE 499425A BE 499425D A BE499425D A BE 499425DA BE 499425 A BE499425 A BE 499425A
Authority
BE
Belgium
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 BE499425A publication Critical patent/BE499425A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/14—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying the relative position of primary active element and a refracting or diffracting device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/04—Coaxial resonators
BE499425D 1949-11-19 BE499425A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US128332A US2774967A (en) 1949-11-19 1949-11-19 Balanced doublet antenna of small dimension

Publications (1)

Publication Number Publication Date
BE499425A true BE499425A (ko)

Family

ID=22434820

Family Applications (1)

Application Number Title Priority Date Filing Date
BE499425D BE499425A (ko) 1949-11-19

Country Status (5)

Country Link
US (1) US2774967A (ko)
BE (1) BE499425A (ko)
CH (1) CH298003A (ko)
FR (1) FR1027809A (ko)
GB (1) GB677860A (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132022B (en) * 1982-05-21 1985-07-24 Decca Ltd Radio frequency antenna and radio direction finding apparatus incorporating such antenna
FI80346C (fi) * 1983-07-07 1990-05-10 Instrumentarium Oy Rf-spolarrangemang vid nmr-undersoekningsapparatur.
US4694255A (en) * 1983-11-04 1987-09-15 General Electric Company Radio frequency field coil for NMR
US4692705A (en) * 1983-12-23 1987-09-08 General Electric Company Radio frequency field coil for NMR

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE636809C (de) * 1930-08-08 1936-10-17 Rudolf Weyrich Dr Vorrichtung zum Senden oder Empfangen elektromagnetischer Wellen mit in der Umgebungeiner Sende- oder Empfangsvorrichtung angeordneten Reflektoren
US2415094A (en) * 1938-01-17 1947-02-04 Board Radio measurement of distances and velocities
GB550127A (en) * 1940-12-12 1942-12-23 Marconi Wireless Telegraph Co Improvements in electromagnetic tapered wave-guide radiators
US2359620A (en) * 1942-06-13 1944-10-03 Rca Corp Short wave antenna
US2465416A (en) * 1943-10-02 1949-03-29 Zenith Radio Corp Resonant circuit and radiator
US2418084A (en) * 1945-11-05 1947-03-25 United Air Lines Inc Antenna
US2539680A (en) * 1945-11-26 1951-01-30 Rca Corp Ultra high frequency antenna
US2532919A (en) * 1947-04-21 1950-12-05 Johnson William Arthur Radio aerial system, and particularly directive aerial system
US2572041A (en) * 1947-10-29 1951-10-23 Sperry Corp Selective azimuth signaling system

Also Published As

Publication number Publication date
US2774967A (en) 1956-12-18
GB677860A (en) 1952-08-20
CH298003A (fr) 1954-04-15
FR1027809A (fr) 1953-05-15

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