US2052339A - Ultra short wave apparatus - Google Patents

Ultra short wave apparatus Download PDF

Info

Publication number
US2052339A
US2052339A US8940A US894035A US2052339A US 2052339 A US2052339 A US 2052339A US 8940 A US8940 A US 8940A US 894035 A US894035 A US 894035A US 2052339 A US2052339 A US 2052339A
Authority
US
United States
Prior art keywords
line
open
closed
conductor
ultra
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
US8940A
Other languages
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 US2052339A publication Critical patent/US2052339A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices

Definitions

  • the present invention relates to an arrangement for coupling a closed line with an open line for ultra-high frequency electro-magnetic waves.
  • the particular purpose of the present invention consists in constructing an energy line for ultrahigh frequency electro-magnetic waves for connecting aerials with the resonator of generating or receiving tubes, which isfree from radiation losses, which permits aerials, particularly dipole aerials, to be coupled symmetrically with the resonator of the tube and which, moreover,-furnishes the possibility of establishing an optimal coupling between tube and aerial.
  • closed double lines as well as open double lines as energy lines for ultra-high frequency electro-magnetic waves
  • the closed double lines consisting of an inner conductor and an outer conductor enclosing the inner conductor, embody the advantage, that they are free from loss radiation at the ends.
  • the open line consistingof two parallel conductors disposed in juxta-position, is
  • an energy'line consisting of an open and a closed double line be employed for ultra-high frequency electro-magnetic waves.
  • the arrangement for coupling the two lines in accordance with the present invention is of such a nature that, in the first instance, the two lines are made to cross each other and, secondly, that the inner conductor of the closed line, projects beyond the end of the outer conductor at the point of coupling or junction like an aerial and penetrates'into the field space of the open energy line.
  • FIG. 1 represents a coupling arrangement in accordance with the present invention in section
  • Fig. 2 illustrates the same in perspective
  • Fig. 3 shows in section a coupling arrangement in accordance with the present invention in connection with an ultra-short wave tube, a hollow space resonator and two M2 dipole aerials accommodated within reflectors.
  • a particularly symmetrical coupling arrangement will then be obtained, if the two energy lines are made to cross each other in a perpendicular direction, so that the inner conductor of the closed line projects, parallel to the 5 electric field lines, into the field space of the open energy. line.
  • a double line consisting of a cylindrical inn-er conductor I and a cylindrical outer con- 10 ductor 2, co-axial thereto, is employed.
  • the open line consists of two parallel band-shaped conductors 3 and 4. The two conductors have been disposed perpendicularly to each other, while the outer conductor 2 is galvanically connected with 15 the band-shaped conductor 3.
  • the part 5 of the inner conductor of the closed line partly penetrates, like an aerial, into the field space of the open line.
  • the free end of the closed line is connected with an ultra-short wave tube 1, while the two free ends of the open line have been coupled with dipole aerials 8 of the length M2.
  • the aerials 8 are accommodated in the focal point of parabolic reflectors 9 being galvanically connected at their vertices with the screening tube 6.
  • the resonator of the ultra-short wave tube 1 is limited by the concentric and cylindrical metal tubes I0 and II being provided at the lower end with a short circuit condenser formed by the flanges I2, I3.
  • the tubes III and I I are made to terminate in the conductors I and 2 of the closed energy line.
  • the medium part of the conductor III has been provided with a grid I4, being equipped in its interior with a hot cathode I5 serving as source of electrons. It is impossible that losses of radiation are occasioned along the energy line between tube and aerials.
  • the length of the open and of the closed energy line is determined at a certain ratio to the wavelength 55 of the wave to be emitted or received.
  • the closed line has been coupled with the resonator in a potential node.
  • the length of the closed energy line is advantageously selected so as to equal the quarter wavelength (A/ l) or an odd multiple thereof.
  • the length of the open line will have to be selected at a certain ratio to the wavelength. Considering that at the point of coupling of the aerials a potential node will be formed, it is of advantage also to cause the length a of the open energy line between aerial and the junction at 5 to be so constructed as to equal the quarter wavelength or an odd multiple thereof, because just in that case will a potential loop be formed at the junction. If the open energy line terminates in a potential loop, the length a will advantageously be selected so as to equal M2 or an integral multiple thereof.
  • the screw IB serves for varying the distance of the parallel conductors 3, 4, in order to be able to vary the surge impedance of the open line and the coupling of the open line with the closed line, so that the aerials are optimally coupled with the tube.
  • a coupling arrangement comprising a closed line for ultra-high frequency electromagnetic waves, said closed line consisting of an inner conductor and an outer conductor, an open line for ultra-high frequency electromagnetic waves, said open line consisting of two substantially parallel conductors, said closed and open lines being disposed at an angle to one another, the outer conductor of the closed line being joined to one of the parallel conductors of the open line and the inner conductor of the closed line projecting beyond the end of the outer conductor and into the field space of the open energy line as an aerial.
  • a coupling arrangement comprising a closed line for ultra-high frequency electromagnetic waves, said closed line consisting of an inner conductor and an outer conductor, an open line for ultra-high frequency electromagnetic waves, said open line consisting of two substantially parallel conductors, said closed and open lines being disposed at an angle to one another, the outer conductor of the closed line being joined to one of the parallel conductors of the open line and the inner conductor of the closed line projecting beyond the end of the outer conductor and into the field space of the open energy line as an aerial, and a metal screen surrounding said open line.
  • a coupling arrangement comprising a closed line for ultra-high frequency electromagnetic waves, said closed line consisting of an inner conductor and an outer conductor, an open line for ultra-high frequency electromagnetic waves, said open line consisting of two substantially parallel conductors, said closed and open lines being disposed at an angle to one another, the outer conductor of the closed line being joined to one of the parallel conductors of the open line and the inner conductor of the closed line projecting beyond the end of the outer conductor and into the field space of the open energy line as an aerial, and a metal screen surrounding said open line and galvanically connected with the outer conductor of the closed line.
  • a coupling arrangement comprising a closed line for ultra-high frequency electromagnetic waves, said closed line consisting of an inner conductor and an outer conductor, an open line for ultra-high frequency electromagnetic waves, said open line consisting of two substantially parallel conductors, said closed and open lines being disposed at an angle to one another, the outer conductor of the closed line being joined to one of the parallel conductors of the open line and the inner conductor of the closed line projecting beyond the end of the outer conductor and into said field space of the open energy line as an aerial, and means for varying the coupling.
  • a coupling arrangement comprising a closed line for ultra-high frequency electromagnetic waves, said closed line consisting of an inner conductor and an outer conductor, an open line for ultra-high frequency electromagnetic waves, said open line consisting of two substantially parallel conductors, said closed and open lines being disposed at an angle to one another, the outer conductor of the closed line being joined to one of the parallel conductors of the open line and the inner conductor of the closed line projecting beyond the end of the outer conductor and into said field space of the open energy line as an aerial, and means for varying the distance between the conductors of the open line.
  • a coupling arrangement comprising, a closed line for ultra-high frequency electromagnetic waves, said closed line consisting of a cylindrical inner conductor and an outer conductor concentrically enclosing said inner conductor, an open line for ultra-high frequency electromagnetic waves, said open line consisting of two parallel conductors, the outer conductor of said closed line being connected at an angle to one of said parallel conductors, the inner conductor of the closed line projecting beyond the end of the outer conductor of the closed line and into the field space of the open line as an aerial.
  • a coupling arrangement comprising, a closed line for ultra-high frequency electromagnetic waves, said closed line consisting of a cylindrical inner conductor and an outer conductor concentrically enclosing said inner conductor, an open line for ultras-high frequency electromagnetic waves, said open line consisting of two parallel, flat and band-shaped conductors disposed perpendicularly with respect to said closed line, the outer conductor of said closed line being galvanically connected with a conductor of the open line, the inner conductor of the closed line projecting as an aerial beyond the end of the outer conductor only partly into the field spaceof the open line parallel to the electric field lines, a metal screen enclosing the parallel conductors of said open line and galvanically connected with the outer conductor of the closed line.
  • An arrangement for emitting or receiving ultra-short electromagnetic waves comprising an ultra-short wave tube, a. resonator for said tube, an open energy line and a closed energy line; said open energy line consisting of two spaced conductors, said closedenergy line consisting of an inner conductor and an outer conductor surrounding the inner conductor, said open and closed energy lines being coupled together at an angle to one another, the inner conductor of the closed line projecting beyond the outer conductor and penetrating into the field space of the open line, said resonator coupled to said closed energy line, and at least one aerial coupled with the open energy line.
  • An arrangement for emitting or receiving ultra-:short electromagnetic waves comprising an ultra-short wave tube, a resonator for said tube forming a hollow space, an open energy line consisting of two spaced conductors, a closed energy line consisting of an inner conductor and an outer conductor surrounding the inner conductor, means for coupling the two energy lines, said means being such that the inner conductor of the closed line projects beyond the outer conductor and projects into the field space of the open line, means for varying the coupling, a metallic screen surrounding said open line, and di-pole aerials each coupled with one end of the open line, said resonator being coupled with one end of the closed energy line in a radiation-proof manner.
  • An arrangement for emitting and receiving ultra-short electromagnetic waves comprising a closed energy line consisting of an inner cylindrical conductor and an outer concentric cylindrical conductor surrounding the inner conductor, an open energy line consisting of parallel band-shaped conductors, said closed and open lines being disposed perpendicularly with respect to each other, the outer conductor of the closed line being galvanically connected with a conductor of the open line, the inner conductor of the closed line projecting as an aerial beyond the outer conductor and partially penetrating into the field space of the open line, a metal tube enclosing the open line and galvanically connected 25 with the outer conductor of the closed line, an ultra-short wave tube, concentric cylindrical conductors limiting the tube and forming a resonator being galvanically connected with the conductors of the closed line and di-pole aerials of the length M2 coupled with the open energy line.

Landscapes

  • Aerials With Secondary Devices (AREA)
US8940A 1934-03-07 1935-03-01 Ultra short wave apparatus Expired - Lifetime US2052339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2052339X 1934-03-07

Publications (1)

Publication Number Publication Date
US2052339A true US2052339A (en) 1936-08-25

Family

ID=7982704

Family Applications (1)

Application Number Title Priority Date Filing Date
US8940A Expired - Lifetime US2052339A (en) 1934-03-07 1935-03-01 Ultra short wave apparatus

Country Status (3)

Country Link
US (1) US2052339A (en, 2012)
FR (1) FR786611A (en, 2012)
NL (1) NL39925C (en, 2012)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425716A (en) * 1937-07-24 1947-08-19 Research Corp Electromagnetic horn
US2462085A (en) * 1942-12-04 1949-02-22 Int Standard Electric Corp Ultra high frequency oscillator
US2542980A (en) * 1946-02-19 1951-02-27 Sperry Corportation Electromagnetic horn
US2855543A (en) * 1953-04-30 1958-10-07 Gen Electric Microwave beam transmitter
US3119965A (en) * 1960-08-08 1964-01-28 Electronic Communications System for splitting ultra-high-frequency power for divided transmission

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425716A (en) * 1937-07-24 1947-08-19 Research Corp Electromagnetic horn
US2462085A (en) * 1942-12-04 1949-02-22 Int Standard Electric Corp Ultra high frequency oscillator
US2542980A (en) * 1946-02-19 1951-02-27 Sperry Corportation Electromagnetic horn
US2855543A (en) * 1953-04-30 1958-10-07 Gen Electric Microwave beam transmitter
US3119965A (en) * 1960-08-08 1964-01-28 Electronic Communications System for splitting ultra-high-frequency power for divided transmission

Also Published As

Publication number Publication date
NL39925C (en, 2012)
FR786611A (fr) 1935-09-06

Similar Documents

Publication Publication Date Title
US2200023A (en) Ultra-high-frequency oscillation apparatus
US2412320A (en) Antenna system
US2281274A (en) Ultra short wave radiator
US2153728A (en) Ultra high frequency signaling
US2281717A (en) Electron discharge apparatus
US3568206A (en) Transmission line loaded annular slot antenna
US2356414A (en) Tunable resonant cavity device
US2773213A (en) Electron beam tubes
US2421725A (en) Variable frequency cavity resonator oscillator
US2128236A (en) Vacuum discharge tube
US2824996A (en) Travelling wave tubes
US2054896A (en) Reflector system for ultrashort electric waves
US3735188A (en) Traveling wave tube with coax to helix impedance matching sections
US2128231A (en) High frequency oscillator tube
US2295680A (en) Ultra high frequency device with conical collector
US2292496A (en) Transmission line circuit
US2419572A (en) Electron discharge device
US2052339A (en) Ultra short wave apparatus
US2061508A (en) Ultra short wave apparatus
US3581311A (en) Linearly polarized microwave feed assembly for parabolic antennas and the like
US2802135A (en) Traveling wave electron tube
US2394008A (en) Beam resonator tube
US2500430A (en) Cavity resonator oscillator device
US2421988A (en) Directive antenna
US2282856A (en) Magnetron oscillator