US2061508A - Ultra short wave apparatus - Google Patents

Ultra short wave apparatus Download PDF

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Publication number
US2061508A
US2061508A US8939A US893935A US2061508A US 2061508 A US2061508 A US 2061508A US 8939 A US8939 A US 8939A US 893935 A US893935 A US 893935A US 2061508 A US2061508 A US 2061508A
Authority
US
United States
Prior art keywords
plate
resonator
energy line
aerial
tube
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 - Lifetime
Application number
US8939A
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English (en)
Inventor
Dallenbach Walter
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.)
MEAF Machinerieen en Apparaten Fabrieken NV
Original Assignee
MEAF Machinerieen en Apparaten Fabrieken NV
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 MEAF Machinerieen en Apparaten Fabrieken NV filed Critical MEAF Machinerieen en Apparaten Fabrieken NV
Application granted granted Critical
Publication of US2061508A publication Critical patent/US2061508A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention relates to an arrangement for the directional emission or reception of ultra-short electro-magnetic waves.
  • the present invention relates to an arrangement, in which the abovementioned difliculties have been obviated and in which the aerial has simultaneously been provided in. an advantageous manner with means for grouping or bunching the ultra-short waves.
  • the arrangement in accordance with the present invention essentially consists of a conductive plate, a bar-shaped aerial projecting beyond said plate and further means for the grouping or bunching above said plate, the bar-shaped aerial being coupled through an aperture in the plate with a concentric energy line which-has been joined to the other side of the plate.
  • the plate is suitably made to consist of metal.
  • the outer conductor the energy line is conductively connected suitably with the plate. while the inner conductor is continued through the aperture in for grouping may also advantageously consist of bar-shaped aerials, disposed upon the plate. e. g.
  • a tube is employed, containing as resonator which has been designed as a hollow, closed space, being coupled with the concentric energy line without the appearance of leakage or loss radiation.
  • the conductors of this Lecher system may be continued directly as the conductors of the concentric energy line of appropriate surge impedance for the optimal adaptation of the tube to the aerial.
  • Fig. 1 shows an example of performance in elevation and in section
  • Fig. la representing the same example of performance in plan view.
  • I characterizes a metallic plate, carrying on its upper side a bar-shaped aerial 2 coupled with the tube and further bar-shaped serials I for grouping.
  • the serials are suitably mounted ver- 55 tically on the plate and are tuned to the quarter wave length of the oscillation to be emitted or to be received.
  • the barshaped aerials 8, serving as reflectors have been disposed along a parabolic curve.
  • the ultra-short wave tube 4 with a built-in resonator.
  • the cylindrical hollow space being essentially limited by the outer conductor 5 and the inner conductor 8 has been made to serve as the resonator.
  • the medium part of the inner conductor 8 has been provided with a grid 1 which is advantageously madwto consist of bars disposed in an axial direction.
  • a cathode 8 consisting of a hot wire, bent so as to possess the form of a hair pin, has been positioned
  • the lower end of the inner conductor 6 is provided with a metal plate 9, while the lower end of the outer conductor I is made to carry a flange l0, both parts being separated from each other only by a short distance and forming a condenser for the capacitative conduction of the oscillating current.
  • the upper end of the inner conductor, as well as of the outer conductor of. the resonator, is connected with a concentric energy line I I.
  • the inner conductor of the resonator is continued as inner conductor I! of the energy line without undergoing any change with regard to its cross section, while the outer conductor of the resonator is conductively connected by means of the flange-shaped part 18, with the outer conductor ll of the energy line of lesser diameter.
  • the outer conductor I4 is conductively connected at the, upper endwith the metal plate, whereas the inner conductor 12 is continued as bar-shaped aerial 2 through an aperture in the plate.
  • the metal walls, limiting the resonator space or the cathode space of the tube are provided at their edges with glass fusing, while the two flanges 9 and I0. formingthe short circuit condenser, have also been provided at their edge with a vacuum-tight glass fusing, the end of the energy line, finally, being provided with a glass fusing it.
  • the hollow space, containing the cathode, of the inner conductor 8 has also been closed up at the lower endby means of a glass fusing i1, through which the heating current leads II have been made. to pass into the interior of the tube.
  • the aerial I can be adapted to the tube. If, owing to a small distance of the concentric conductor, the energy line is given a lowsurge impedance compared with the resonator and if its length is selected at M4 or an odd multiple thereof, a favorable and loose coupling of the aerial with the resonator will be secured. The influence of the energy line on the resonator will then approximately be identical with that of a short circuit condenser.
  • the inetal plate I serves for the purpose of capacitatively conducting the aerial current to the outer conductor of the energy line;
  • the metal plate plays the same role as the earth's surface when emitting and receiving earth-conducted long waves.
  • the plate In order to render the bending of the radiation round the edge l9 as smallas possible, the plate is given, in the direction of the emanating ray, considerable extension compared to the wave length.
  • any of the directional emitter arrangements known in connection with earth-conducted long waves may be employed.
  • An arrangement for the directional emission and reception of ultra-short waves comprising a level conductive plate having an aperture therein, rod antennas of the length A/i disposed on one side of said zyplate in parabolic curve and perpendicular to said liilatet-an electron tube on the other side of said plate, said electron tube being provided with a hollow space resonator limited by a concentric Lecher system of the length M2, a lead coupled with the inner and outer leads of the concentric Lecher system and forming a short circuit condenser for the resonator, an energy line of the length M4 coupled to one end of the concentric Lecher system, said energy line consisting of an inner conductor and an outer conductor concentric with said inner conductor, the outer conductor of said line at one end being connected with said plate, the inner conductor being continued through said aperture in the form of a rod antenna of the length M4 disposed at the focal point of the parabola and perpendicular to said plate.
  • An arrangement for the directional emission and reception of ultra-short waves comprising a conductive plate having an aperture therein, a rod antenna on one side of the plate above said aperture, means on the. same side of the plate for bunching ultra-short waves, an electron tube on the other side of the plate, said electron tube being provided with a resonator, an energy line consisting of an inner conductor and an outer conductor concentric with said inner conductor, a rigid mechanical connection between one end of said energy line and the resonator, the outer conductor of the energy line being rigidly connected at the other end with the plate, the inner conductor being connected through said aperture with ,the rod antenna, all parts being connected mechanically to form a closed unit. l.

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  • Aerials With Secondary Devices (AREA)
US8939A 1934-03-03 1935-03-01 Ultra short wave apparatus Expired - Lifetime US2061508A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
US2061508A true US2061508A (en) 1936-11-17

Family

ID=6497069

Family Applications (1)

Application Number Title Priority Date Filing Date
US8939A Expired - Lifetime US2061508A (en) 1934-03-03 1935-03-01 Ultra short wave apparatus

Country Status (4)

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

Cited By (9)

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

Cited By (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
NL40293C (enrdf_load_stackoverflow)
GB433026A (en) 1935-08-07
FR786417A (fr) 1935-09-03

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