FR939271A - Perfectionnements aux appareils à décharge électronique - Google Patents

Perfectionnements aux appareils à décharge électronique

Info

Publication number
FR939271A
FR939271A FR939271DA FR939271A FR 939271 A FR939271 A FR 939271A FR 939271D A FR939271D A FR 939271DA FR 939271 A FR939271 A FR 939271A
Authority
FR
France
Prior art keywords
discharge devices
electronic discharge
electronic
devices
discharge
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
Application number
Other languages
English (en)
Inventor
William Thomas Gibson
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB229640A external-priority patent/GB583460A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR939271A publication Critical patent/FR939271A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J25/06—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron
    • H01J25/08—Tubes having only one resonator, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly velocity modulation, e.g. Lüdi-Klystron with electron stream perpendicular to the axis of the resonator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/10—Radiation diagrams of antennas
    • G01R29/105—Radiation diagrams of antennas using anechoic chambers; Chambers or open field sites used therefor
    • 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
    • H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Microwave Tubes (AREA)
  • Lasers (AREA)
  • Aerials With Secondary Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
FR939271D 1940-02-06 1946-08-28 Perfectionnements aux appareils à décharge électronique Expired FR939271A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB229640A GB583460A (en) 1940-02-06 1940-02-06 Improvements in or relating to electron discharge apparatus using velocity modulatedbeams
GB2594971X 1943-03-12

Publications (1)

Publication Number Publication Date
FR939271A true FR939271A (fr) 1948-11-09

Family

ID=32232335

Family Applications (2)

Application Number Title Priority Date Filing Date
FR939271D Expired FR939271A (fr) 1940-02-06 1946-08-28 Perfectionnements aux appareils à décharge électronique
FR57759D Expired FR57759E (fr) 1940-02-06 1947-08-05 Perfectionnements aux appareils à décharge électronique

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR57759D Expired FR57759E (fr) 1940-02-06 1947-08-05 Perfectionnements aux appareils à décharge électronique

Country Status (3)

Country Link
US (1) US2594971A (fr)
FR (2) FR939271A (fr)
GB (1) GB538623A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656535A (en) * 1945-08-06 1953-10-20 Leland K Neher Nonreflecting background for testing microwave equipment
US2951246A (en) * 1946-01-30 1960-08-30 Halpern Otto Absorbent for electromagnetic waves
US3187331A (en) * 1949-04-21 1965-06-01 Gen Aniline & Film Corp Micro-wave absorber
US2870439A (en) * 1950-12-29 1959-01-20 Western Union Telegraph Co Microwave energy attenuating wall
GB755011A (en) * 1951-08-03 1956-08-15 Standard Telephones Cables Ltd Improvements relating to radio beam antenna arrangements
US2704301A (en) * 1953-08-13 1955-03-15 Feketics Frank Shielding enclosures
US2856497A (en) * 1954-04-29 1958-10-14 Raytheon Mfg Co Dielectric matching devices
US2913577A (en) * 1954-10-18 1959-11-17 Johnson John Kelly High-frequency screening enclosure
DE1011015B (de) * 1955-09-08 1957-06-27 Herberts & Co Gmbh Dr Kurt Nach dem Interferenzprinzip arbeitende selektive Daempfungsschicht fuer elektromagnetische Wellen
US2920174A (en) * 1957-06-28 1960-01-05 Raytheon Co Microwave ovens
US2961478A (en) * 1957-10-10 1960-11-22 Mcmillan Ind Corp Insulating and shielding enclosure
US3007160A (en) * 1957-11-29 1961-10-31 Halpern Otto Method of reducing reflection of incident electromagnetic waves
US3100870A (en) * 1959-05-04 1963-08-13 Raytheon Co Rooms for testing electronic equipment
US3229429A (en) * 1960-04-27 1966-01-18 Conrad Ivan Willard Secure conference systems
US3328509A (en) * 1966-07-20 1967-06-27 Boeing Co Apparatus for shielding against lowfrequency electromagnetic energy
US4386354A (en) * 1980-12-15 1983-05-31 Plessey Overseas Limited Electromagnetic noise suppression
JP2574409B2 (ja) * 1988-07-08 1997-01-22 松下電器産業株式会社 Ｅｍｃ試験用電磁波無響室およびそのシールド材
JP2510880B2 (ja) * 1988-07-26 1996-06-26 ティーディーケイ株式会社 多層型電波吸収体及び該電波吸収体からなる電波暗室
JPH0242799A (ja) * 1988-08-02 1990-02-13 Akzo Kashima Ltd 電波無響室
DE3838259A1 (de) * 1988-11-11 1990-05-17 Asea Brown Boveri Verfahren fuer den qualitaetsvergleich von hf-absorbern
EP1955084A1 (fr) * 2005-11-30 2008-08-13 Astrium GmbH Salle de mesure haute frequence pour effectuer des mesures sur des objets de grande taille

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US546802A (en) * 1895-09-24 William edward ayrton and thomas mather
US1920741A (en) * 1927-09-20 1933-08-01 Rca Corp Radiocabinet
GB433355A (en) * 1933-12-12 1935-08-13 Lorenz C Ag Improvements in screening devices for high frequency electrical apparatus and parts thereof
FR802728A (fr) * 1935-02-19 1936-09-14 Meaf Mach En Apparaten Fab Nv Dispositif et procédé pour l'amélioration de dispositifs de production et de réception d'ondes électriques ultra-courtes
US2151118A (en) * 1935-10-30 1939-03-21 Bell Telephone Labor Inc Termination for dielectric guides
US2106039A (en) * 1935-12-12 1938-01-18 Gen Electric Condenser dielectric material
US2235010A (en) * 1939-09-16 1941-03-18 Bell Telephone Labor Inc Ultra-short wave transmitting and receiving system
US2304540A (en) * 1940-05-02 1942-12-08 Westinghouse Electric & Mfg Co Generating apparatus
US2296678A (en) * 1940-06-25 1942-09-22 Rca Corp Ultra high frequency device

Also Published As

Publication number Publication date
GB538623A (en) 1941-08-11
FR57759E (fr) 1953-09-09
US2594971A (en) 1952-04-29

Similar Documents

Publication Publication Date Title
FR65355E (fr) Perfectionnements aux appareils à décharge électronique
FR867556A (fr) Perfectionnements aux appareils à décharge électronique
FR933985A (fr) Perfectionnements aux dispositifs à décharge électronique
FR950741A (fr) Dispositif à décharge électronique
FR939271A (fr) Perfectionnements aux appareils à décharge électronique
FR949975A (fr) Tube à décharge électronique
FR58577E (fr) Perfectionnements aux appareils à décharge électronique
FR944979A (fr) Perfectionnements aux dispositifs à décharge électronique
FR57683E (fr) Tubes à décharge électronique
FR848179A (fr) Appareils à décharge électronique
FR57753E (fr) Perfectionnements aux appareils à décharge électronique
FR907691A (fr) Perfectionnements aux dispositifs à décharge électronique
FR939568A (fr) Perfectionnements aux appareils à décharge électronique
FR55359E (fr) Dispositif à décharge électronique
FR931405A (fr) Perfectionnements aux appareils électriques du type à courants tourbillonnants
FR932826A (fr) Perfectionnements aux appareils à décharge électronique pour très hautes fréquences
FR54878E (fr) Dispositifs à décharge électronique
FR65357E (fr) Perfectionnements aux appareils à décharge électronique
FR939412A (fr) Perfectionnements aux appareils à décharge électronique pour très hautes fréquences
FR834005A (fr) Appareils à décharge électronique
FR939605A (fr) Perfectionnements aux appareils à décharge électronique
FR939238A (fr) Perfectionnements aux appareils à décharge électronique
FR939268A (fr) Perfectionnements aux appareils à décharge électronique
FR907557A (fr) Perfectionnements aux appareils cinématographiques
FR869047A (fr) Appareils à décharge électronique