US2797354A - Millimeter wave electric discharge device - Google Patents

Millimeter wave electric discharge device Download PDF

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Publication number
US2797354A
US2797354A US312362A US31236252A US2797354A US 2797354 A US2797354 A US 2797354A US 312362 A US312362 A US 312362A US 31236252 A US31236252 A US 31236252A US 2797354 A US2797354 A US 2797354A
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US
United States
Prior art keywords
wires
electric discharge
millimeter wave
frame
discharge device
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Expired - Lifetime
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US312362A
Inventor
Vries Gerrit De
Diemer Gesinus
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US Philips Corp
North American Philips Co Inc
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US Philips Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons

Definitions

  • the invention relates to a device for producing, amplifying or modulating millimeter waves comprising an electric discharge valve in which the resonance system is constituted by a plurality of approximately parallel wires of about a half-wave length which are stretched in juxtaposition on a frame so that their centre lines are spaced apart by a distance which is small compared with their length, and which interact with a cathode beam moving relatively to them.
  • the object of the invention is to provide other means to maintain the correct way of oscillation in the abovementioned devices.
  • a millimeter wave device comprising an electric discharge tube the resonance system of which is constituted by a plurality of approximately parallel wires of about a half-wave length which are stretched in juxtaposition on a frame so that their centre lines are spaced apart by a distance which is small compared with their length, and which interact with a cathode beam moving relatively to them, the wires are alternately staggered relatively to their mutual parallel position in the opposite sense in the same plane so that the distances between the ends of the wires are alternately smaller and greater than the average distance, the ratio between the smaller distance and the greater one being at most 0.9 but not less than 0.7.
  • the manner indicated enables the voltage of the wires to oscillate in phase opposition and has the additional advantage that it is possible to use a single wire diameter and to place the Wires in position in a simple manner by winding them on the frame in succession left-hand and right hand instead of the structure shown by Gesinus Diemer in U. S. patent application, Serial No. 261,102 assigned to the assignee of the present invention.
  • the aperture 2 of a molybdenum sheet frame 1 is spanned by two groups of wires 3 and 4 respectively, the wires being mutually parallel in each group.
  • the length l of the short side of the aperture is 4 mms.
  • the great distance between two wires s is 0.32 mm. and the small distance s is 0.28 mm.
  • the diameter of the wires is 0.1 mm.
  • Each pair of adjacent wires of groups 3 and 4 thereby defines a trapezoidal space between the long sides of frame 1.
  • Figure 2 represents an electrode system for a discharge tube for use in a device according to the invention.
  • the numerals 1 to 4 represent the same parts as in Figure l.
  • 5 is an indirectly heated cathode.
  • 6 is a focussing electrode and 7 a collecting anode, all located in an evacuated envelope 8.
  • An electron beam is passed with the aid of electrodes 5, 6 and 7 along the frame 1 on which wires 3 and 4 are wound.
  • the Wires 3 and 4 oscillate in phase opposition with voltage nodes at their ends.
  • Any convenient means such as a pick-up loop 9 connected to output terminals 10 and 11, may be used to extract electro-magnetic energy from the oscillating wires 3 and 4.
  • a device adapted for extremely-high frequency operation comprising a resonator including a planar conductive frame and a plurality of taut wires disposed in spaced relation on and secured to said frame, each of said wires having a length substantially equal to one-half of a wavelength of the operating frequency of the device, the spacing between adjacent wires being small relative to the length thereof, alternate wires being parallel to one another and adjacent wires being spaced apart a distance smaller at one side of the frame than at the other side whereby adjacent pairs of wires define similarly disposed trapezoidal spaces, the ratio between the smaller distance at one side of the frame and the larger distance at the other side being in the range between 0.7 and 0.9, and means for projecting an electron beam past said resonator in a direction parallel to said frame and substantially normal to said Wires to cause successive wires to oscillate in phase opposition.

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  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)
  • Windings For Motors And Generators (AREA)

Description

' m 1957 G. DE VRIES ET L 9 v MILLIMETER WAVE ELECTRIC DISCHARGE DEVICE Filed Sept. 30 1952 INVENTOR GESINUS DIEMER GERRIT DE VRIES AGENT MILLIMETER WAVE ELECTRIC DISCHARGE DEVHCE Gen-it de Vries and Gesinus Diemer, Eindhoven, Nethen lands, assignors, by mesne assignments, to North American Philips Company, Inc., New York, N. Y., a corporation of Delaware Application September 30, 1952, Serial No. 312,362
Claims priority, application Netherlands November 9, 1951 2 Claims. (Cl. 315-4) The invention relates to a device for producing, amplifying or modulating millimeter waves comprising an electric discharge valve in which the resonance system is constituted by a plurality of approximately parallel wires of about a half-wave length which are stretched in juxtaposition on a frame so that their centre lines are spaced apart by a distance which is small compared with their length, and which interact with a cathode beam moving relatively to them.
Devices of the above-mentioned kind comprising parallel wires have been proposed before and to enable successive wires to oscillate in phase opposition they are made alternately longer and shorter than the average length. This has been described in a copending application, Serial No. 261,102, filed December 11, 1951.
The object of the invention is to provide other means to maintain the correct way of oscillation in the abovementioned devices.
According to the invention, in a millimeter wave device comprising an electric discharge tube the resonance system of which is constituted by a plurality of approximately parallel wires of about a half-wave length which are stretched in juxtaposition on a frame so that their centre lines are spaced apart by a distance which is small compared with their length, and which interact with a cathode beam moving relatively to them, the wires are alternately staggered relatively to their mutual parallel position in the opposite sense in the same plane so that the distances between the ends of the wires are alternately smaller and greater than the average distance, the ratio between the smaller distance and the greater one being at most 0.9 but not less than 0.7.
The manner indicated enables the voltage of the wires to oscillate in phase opposition and has the additional advantage that it is possible to use a single wire diameter and to place the Wires in position in a simple manner by winding them on the frame in succession left-hand and right hand instead of the structure shown by Gesinus Diemer in U. S. patent application, Serial No. 261,102 assigned to the assignee of the present invention.
2,797,354 Patented June 25, 1957 The invention will now be described with reference to the accompanying drawing, which shows a wound frame for an electric discharge tube to be used in a device according to the invention.
Referring to Figure 1 of the drawing the aperture 2 of a molybdenum sheet frame 1 is spanned by two groups of wires 3 and 4 respectively, the wires being mutually parallel in each group. The length l of the short side of the aperture is 4 mms. The great distance between two wires s is 0.32 mm. and the small distance s is 0.28 mm. The diameter of the wires is 0.1 mm. Each pair of adjacent wires of groups 3 and 4 thereby defines a trapezoidal space between the long sides of frame 1.
Figure 2 represents an electrode system for a discharge tube for use in a device according to the invention.
In the drawing the numerals 1 to 4 represent the same parts as in Figure l. 5 is an indirectly heated cathode. 6 is a focussing electrode and 7 a collecting anode, all located in an evacuated envelope 8. An electron beam is passed with the aid of electrodes 5, 6 and 7 along the frame 1 on which wires 3 and 4 are wound. The Wires 3 and 4 oscillate in phase opposition with voltage nodes at their ends. Any convenient means, such as a pick-up loop 9 connected to output terminals 10 and 11, may be used to extract electro-magnetic energy from the oscillating wires 3 and 4.
What we claim is:
l. A device adapted for extremely-high frequency operation, comprising a resonator including a planar conductive frame and a plurality of taut wires disposed in spaced relation on and secured to said frame, each of said wires having a length substantially equal to one-half of a wavelength of the operating frequency of the device, the spacing between adjacent wires being small relative to the length thereof, alternate wires being parallel to one another and adjacent wires being spaced apart a distance smaller at one side of the frame than at the other side whereby adjacent pairs of wires define similarly disposed trapezoidal spaces, the ratio between the smaller distance at one side of the frame and the larger distance at the other side being in the range between 0.7 and 0.9, and means for projecting an electron beam past said resonator in a direction parallel to said frame and substantially normal to said Wires to cause successive wires to oscillate in phase opposition.
2. A device as claimed in claim 1 in which the frame is constituted of molybdenum.
References Cited in the file of this patent UNITED STATES PATENTS 2,064,469 Haeil Dec. 15, 1936 2,439,401 Smith Apr. 13, 1948 2,584,308 Tiley Feb. 5, 1952 2,697,799 Svensson Dec. 21, 1954
US312362A 1950-12-29 1952-09-30 Millimeter wave electric discharge device Expired - Lifetime US2797354A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL304853X 1950-12-29
NL740701X 1951-11-09

Publications (1)

Publication Number Publication Date
US2797354A true US2797354A (en) 1957-06-25

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ID=26643621

Family Applications (3)

Application Number Title Priority Date Filing Date
US261102A Expired - Lifetime US2844756A (en) 1950-12-29 1951-12-11 Electron discharge device with resonator
US312362A Expired - Lifetime US2797354A (en) 1950-12-29 1952-09-30 Millimeter wave electric discharge device
US312363A Expired - Lifetime US2797355A (en) 1950-12-29 1952-09-30 Electron discharge device comprising a resonator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US261102A Expired - Lifetime US2844756A (en) 1950-12-29 1951-12-11 Electron discharge device with resonator

Family Applications After (1)

Application Number Title Priority Date Filing Date
US312363A Expired - Lifetime US2797355A (en) 1950-12-29 1952-09-30 Electron discharge device comprising a resonator

Country Status (7)

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US (3) US2844756A (en)
BE (1) BE508051A (en)
CH (2) CH304853A (en)
DE (1) DE921035C (en)
FR (2) FR1054288A (en)
GB (2) GB719435A (en)
NL (2) NL158239B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919375A (en) * 1955-06-10 1959-12-29 Csf Backward wave traveling wave tubes

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1068673A (en) * 1952-06-28 1954-06-30 Csf Improvements to ladder type delay lines for traveling wave tubes or magnetrons
FR67392E (en) * 1952-12-19 1958-03-06 Csf Improvements to delay lines of the so-called interdigital type
FR1106301A (en) * 1954-04-27 1955-12-16 Csf Inverted two-beam oscillator tube
US2866917A (en) * 1955-09-08 1958-12-30 Zenith Radio Corp Electromagnetic wave generator
NL218406A (en) * 1956-07-19
US3054017A (en) * 1957-05-06 1962-09-11 Gen Electric Electron discharge devices
DE102004056259A1 (en) * 2004-11-22 2006-05-24 Rohde & Schwarz Gmbh & Co. Kg Coupling lines for a YIG filter or YIG oscillator and method for producing the coupling lines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064469A (en) * 1933-10-23 1936-12-15 Rca Corp Device for and method of controlling high frequency currents
US2439401A (en) * 1942-09-10 1948-04-13 Raytheon Mfg Co Magnetron oscillator of the resonant cavity type
US2584308A (en) * 1947-07-18 1952-02-05 Philco Corp Electronic tube of the traveling wave type
US2697799A (en) * 1948-12-01 1954-12-21 Ericsson Telefon Ab L M Amplifying device for microwaves

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR733154A (en) * 1931-03-23 1932-10-01 Radio Patents Corp Development of ultra-short wave systems
US2026725A (en) * 1932-04-11 1936-01-07 Baker Donald Jerome Television system and method
US2074478A (en) * 1935-12-31 1937-03-23 Rca Corp Short wave detector
GB483888A (en) * 1936-05-06 1938-04-27 Telefunken Gmbh Improvements in or relating to electron discharge tubes for use for ultra-short waveradiation
FR826466A (en) * 1936-09-10 1938-03-31 Pintsch Julius Kg Device, lamp or tube for producing, amplifying or receiving ultra-high frequency oscillations
FR957330A (en) * 1940-05-17 1950-02-18
US2428612A (en) * 1942-05-09 1947-10-07 Gen Electric Magnetron
US2530373A (en) * 1943-05-04 1950-11-21 Bell Telephone Labor Inc Ultra high frequency electronic device
US2624100A (en) * 1943-11-02 1953-01-06 Int Standard Electric Corp Grid electrode for electron discharge devices
US2460120A (en) * 1944-12-09 1949-01-25 Gen Electric Electrode structure for electric discharge devices
US2532545A (en) * 1945-03-08 1950-12-05 Everhart Edgar Magnetron oscillator
US2473399A (en) * 1945-03-27 1949-06-14 Raytheon Mfg Co Electron discharge device of the magnetron type
US2495259A (en) * 1945-11-14 1950-01-24 Jackson George Samuel Taut grid electrode for electron tubes
US2645738A (en) * 1946-08-14 1953-07-14 Hartford Nat Bank & Trust Co Circuit arrangement comprising a reflex discharge tube
BE477379A (en) * 1946-11-16
US2549551A (en) * 1948-01-15 1951-04-17 Bell Telephone Labor Inc Grid electrode structure and manufacturing method therefor
US2535317A (en) * 1949-01-26 1950-12-26 Bell Telephone Labor Inc High-speed oscilloscope

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064469A (en) * 1933-10-23 1936-12-15 Rca Corp Device for and method of controlling high frequency currents
US2439401A (en) * 1942-09-10 1948-04-13 Raytheon Mfg Co Magnetron oscillator of the resonant cavity type
US2584308A (en) * 1947-07-18 1952-02-05 Philco Corp Electronic tube of the traveling wave type
US2697799A (en) * 1948-12-01 1954-12-21 Ericsson Telefon Ab L M Amplifying device for microwaves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919375A (en) * 1955-06-10 1959-12-29 Csf Backward wave traveling wave tubes

Also Published As

Publication number Publication date
GB740701A (en) 1955-11-16
GB719435A (en) 1954-12-01
US2844756A (en) 1958-07-22
CH304853A (en) 1955-01-31
BE508051A (en)
DE921035C (en) 1954-12-06
NL165263B (en)
FR63488E (en) 1955-09-28
FR1054288A (en) 1954-02-09
US2797355A (en) 1957-06-25
NL158239B (en)
CH310431A (en) 1955-10-15

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