NL40293C - - Google Patents

Info

Publication number
NL40293C
NL40293C NL40293DA NL40293C NL 40293 C NL40293 C NL 40293C NL 40293D A NL40293D A NL 40293DA NL 40293 C NL40293 C NL 40293C
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 NL40293C publication Critical patent/NL40293C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/68—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators
    • H01J25/70—Tubes specially designed to act as oscillator with positive grid and retarding field, e.g. for Barkhausen-Kurz oscillators with resonator having distributed inductance with capacitance, e.g. Pintsch tube
NL40293D 1934-03-03 NL40293C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE433026X 1934-03-03

Publications (1)

Publication Number Publication Date
NL40293C true NL40293C (zh)

Family

ID=6497069

Family Applications (1)

Application Number Title Priority Date Filing Date
NL40293D NL40293C (zh) 1934-03-03

Country Status (4)

Country Link
US (1) US2061508A (zh)
FR (1) FR786417A (zh)
GB (1) GB433026A (zh)
NL (1) NL40293C (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558727A (en) * 1942-07-01 1951-07-03 Edwin J Bernet Antenna
US2539477A (en) * 1945-01-24 1951-01-30 Rines Robert Harvey Portable radio telephone
US2555123A (en) * 1945-03-22 1951-05-29 John H Gardner Directional antenna
US2594871A (en) * 1945-07-09 1952-04-29 Us Sec War Antenna
US2501070A (en) * 1945-08-01 1950-03-21 Us Sec War Antenna
US2600274A (en) * 1945-10-10 1952-06-10 Sichak William Antenna
US2505751A (en) * 1946-09-27 1950-05-02 John T Bolljahn Broad band antenna
US2503278A (en) * 1947-03-21 1950-04-11 Raytheon Mfg Co Energy radiation apparatus
US3178713A (en) * 1961-03-08 1965-04-13 Andrew Corp Parabolic antenna formed of curved spaced rods

Also Published As

Publication number Publication date
GB433026A (en) 1935-08-07
FR786417A (fr) 1935-09-03
US2061508A (en) 1936-11-17

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