FR72041E - Structure of traveling wave amplifiers - Google Patents

Structure of traveling wave amplifiers

Info

Publication number: FR72041E
Authority: FR; France
Prior art keywords: traveling wave; wave amplifiers; amplifiers; traveling; wave
Prior art date: 1953-03-26
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

French (fr)

Inventor

Douglas Cecil Rogers

Peter Frances Conway Burke

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.)

1953-03-26

Filing date

1957-05-27

Publication date

1960-03-21

1953-03-26 Priority claimed from GB8394/53A external-priority patent/GB755834A/en

1954-06-21 Priority claimed from GB18181/54A external-priority patent/GB787181A/en

1957-05-27 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1960-03-21 Application granted granted Critical

1960-03-21 Publication of FR72041E publication Critical patent/FR72041E/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J3/00—Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
- H01J3/029—Schematic arrangements for beam forming
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
- C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
- C07D261/06—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members
- C07D261/10—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D261/18—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
- C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
- C07D317/62—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to atoms of the carbocyclic ring
- C07D317/66—Nitrogen atoms not forming part of a nitro radical
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/0404—Control of fluid pressure without auxiliary power with two or more controllers mounted in parallel
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
- G05D23/125—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid the sensing element being placed outside a regulating fluid flow
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0273—Magnetic circuits with PM for magnetic field generation
- H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
- 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
- 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
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/06—Electron or ion guns
- H01J23/065—Electron or ion guns producing a solid cylindrical beam
- 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
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J23/087—Magnetic focusing arrangements
- 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
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J23/087—Magnetic focusing arrangements
- H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
- 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
- H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
- H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
- H01J23/42—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit the interaction circuit being a helix or a helix-derived slow-wave structure
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
- H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
- H01J25/38—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field the forward travelling wave being utilised
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode

Landscapes

Physics & Mathematics (AREA)
Organic Chemistry (AREA)
Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Automation & Control Theory (AREA)
Fluid Mechanics (AREA)
Electromagnetism (AREA)
Power Engineering (AREA)
Theoretical Computer Science (AREA)
Microwave Tubes (AREA)
Aerials With Secondary Devices (AREA)
Waveguide Aerials (AREA)
Waveguides (AREA)

FR72041D 1953-03-26 1957-05-27 Structure of traveling wave amplifiers Expired FR72041E (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
GB328589X		1953-03-26
GB8394/53A GB755834A (en)	1953-03-26	1953-03-26	Improvements in or relating to the coupling of a helix in a travelling wave tube or the like to a waveguide
GB28268/53A GB762106A (en)	1953-03-26	1953-10-14	Improvements in or relating to travelling wave tubes
GB18181/54A GB787181A (en)	1954-06-21	1954-06-21	Improvements in or relating to travelling wave tubes
DEL19900A DE1001360B (en)	1953-03-26	1954-09-14	Coupling arrangement for traveling tubes

Publications (1)

Publication Number	Publication Date
FR72041E true FR72041E (en)	1960-03-21

Family

ID=61021422

Family Applications (13)

Application Number	Title	Priority Date	Filing Date
FR66226D Expired FR66226E (en)	1953-03-26	1954-03-26	Structure of traveling wave amplifiers
FR66255D Expired FR66255E (en)	1953-03-26	1954-03-26	Structure of traveling wave amplifiers
FR66266D Expired FR66266E (en)	1953-03-26	1954-04-24	Road signs or advertising signs
FR67269D Expired FR67269E (en)	1953-03-26	1954-10-13	Traveling wave amplifier structures
FR67270D Expired FR67270E (en)	1953-03-26	1954-10-13	Structure of traveling wave amplifiers
FR68866D Expired FR68866E (en)	1953-03-26	1955-06-21	Structure of traveling wave amplifiers
FR69376D Expired FR69376E (en)	1953-03-26	1955-09-13	Structure of traveling wave amplifiers
FR69772D Expired FR69772E (en)	1953-03-26	1955-09-16	Structure of traveling wave amplifiers
FR70719D Expired FR70719E (en)	1953-03-26	1956-06-01	Structure of traveling wave amplifiers
FR72041D Expired FR72041E (en)	1953-03-26	1957-05-27	Structure of traveling wave amplifiers
FR755344A Expired FR73056E (en)	1953-03-26	1958-01-07	Structure of traveling wave amplifiers
FR755436A Expired FR73213E (en)	1953-03-26	1958-01-08	Structure of traveling wave amplifiers
FR772009A Expired FR73991E (en)	1953-03-26	1958-08-06	Structure of traveling wave amplifiers

Family Applications Before (9)

Application Number	Title	Priority Date	Filing Date
FR66226D Expired FR66226E (en)	1953-03-26	1954-03-26	Structure of traveling wave amplifiers
FR66255D Expired FR66255E (en)	1953-03-26	1954-03-26	Structure of traveling wave amplifiers
FR66266D Expired FR66266E (en)	1953-03-26	1954-04-24	Road signs or advertising signs
FR67269D Expired FR67269E (en)	1953-03-26	1954-10-13	Traveling wave amplifier structures
FR67270D Expired FR67270E (en)	1953-03-26	1954-10-13	Structure of traveling wave amplifiers
FR68866D Expired FR68866E (en)	1953-03-26	1955-06-21	Structure of traveling wave amplifiers
FR69376D Expired FR69376E (en)	1953-03-26	1955-09-13	Structure of traveling wave amplifiers
FR69772D Expired FR69772E (en)	1953-03-26	1955-09-16	Structure of traveling wave amplifiers
FR70719D Expired FR70719E (en)	1953-03-26	1956-06-01	Structure of traveling wave amplifiers

Family Applications After (3)

Application Number	Title	Priority Date	Filing Date
FR755344A Expired FR73056E (en)	1953-03-26	1958-01-07	Structure of traveling wave amplifiers
FR755436A Expired FR73213E (en)	1953-03-26	1958-01-08	Structure of traveling wave amplifiers
FR772009A Expired FR73991E (en)	1953-03-26	1958-08-06	Structure of traveling wave amplifiers

Country Status (6)

Country	Link
US (5)	US2890370A (en)
BE (6)	BE527620A (en)
CH (5)	CH322461A (en)
DE (4)	DE1099093B (en)
FR (13)	FR66226E (en)
GB (5)	GB762106A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2654952A (en) *	1951-03-01	1953-10-13	Philip O Solon	Ellipsograph
US3027484A (en) *	1958-03-29	1962-03-27	Kobe Kogyo Kabushiki Kaisha	Periodic magnetic focussing system for travelling wave tubes
DE1276217B (en) *	1958-06-25	1968-08-29	Siemens Ag	Electron beam tubes with speed modulation, especially running field tubes
GB869714A (en) *	1958-12-17	1961-06-07	Mullard Ltd	Travelling-wave tubes
US3062983A (en) *	1959-04-28	1962-11-06	Gen Electric	High frequency energy interchange device
DE1090732B (en) *	1959-05-02	1960-10-13	Telefunken Gmbh	Coaxial coupling device for a high frequency tube
US3032677A (en) *	1959-05-08	1962-05-01	Raytheon Co	Traveling wave tubes
DE1136425B (en) *	1959-07-17	1962-09-13	Philips Nv	Arrangement for coupling the helical delay line of a field pipe to a waveguide running transversely to the helical axis
IT699974A (en) *	1959-12-10
US3134925A (en) *	1960-09-12	1964-05-26	Westinghouse Electric Corp	Magnetic structure for providing smooth uniform magnetic field distribution in traveling wave tubes
US3211947A (en) *	1962-05-14	1965-10-12	Bloom Stanley	Noise reduction of traveling-wave tubes by circuit refrigeration
US3324337A (en) *	1963-12-02	1967-06-06	Varian Associates	High frequency electron discharge device and focusing means therefor
GB1145469A (en) *	1967-08-24	1969-03-12	Standard Telephones Cables Ltd	Cooler for a travelling wave tube
JPS5123146B1 (en) *	1970-12-04	1976-07-14
JPS5868846A (en) *	1981-10-07	1983-04-23	バリアン・アソシエイツ・インコ−ポレイテツド	Linear beam microwave tube focused by permanent magnet
FR2641899A1 (en) *	1989-01-17	1990-07-20	Thomson Tubes Electroniques	ELECTRON GUN WITH AN ACTIVE DEVICE PRODUCING A MAGNETIC FIELD IN THE VICINITY OF THE CATHODE
GB9418028D0 (en) *	1994-09-07	1994-10-26	Eev Ltd	Cavity arrangements

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
USRE22389E (en) *	1940-07-13	1943-11-02		Electron beam concentrating
BE469122A (en) *	1946-01-11		Western Electric Co
NL135247C (en) *	1946-10-22
FR954564A (en) *	1946-10-22	1950-01-03
FR957735A (en) *	1947-01-25	1950-02-24
US2578434A (en) *	1947-06-25	1951-12-11	Rca Corp	High-frequency electron discharge device of the traveling wave type
US2632130A (en) *	1947-11-28	1953-03-17	Joseph F Hull	High current density beam tube
US2637775A (en) *	1948-03-16	1953-05-05	Rca Corp	Coupling of a helical conductor to a wave guide
US2611102A (en) *	1948-11-13	1952-09-16	Sylvania Electric Prod	Traveling wave tube
FR1012374A (en) *	1949-07-27	1952-07-09		Improvements in the construction of traveling wave electron tubes
FR998819A (en) *	1949-10-14	1952-01-23	Csf	Improvements in the coupling of linear wave propagation tubes with their input and output circuits
US2730649A (en) *	1950-02-04	1956-01-10	Itt	Traveling wave amplifier
NL89376C (en) *	1950-06-17
FR1023060A (en) *	1950-08-07	1953-03-13		Very wide band amplitude limiter device in ultra-high frequencies
US2672571A (en) *	1950-08-30	1954-03-16	Univ Leland Stanford Junior	High-frequency oscillator
US2803770A (en) *	1950-09-18	1957-08-20	Fernseh Gmbh	Electron discharge tube apparatus
US2774006A (en) *	1950-10-14	1956-12-11	Univ Leland Stanford Junior	Travelling wave tube apparatus
US2773213A (en) *	1951-03-13	1956-12-04	Rca Corp	Electron beam tubes
US2797353A (en) *	1951-06-15	1957-06-25	Bell Telephone Labor Inc	Traveling wave type electron discharge devices
US2791711A (en) *	1951-08-24	1957-05-07	Research Corp	Apparatus for generating hollow electron beams
DE970404C (en) *	1951-12-05	1958-09-18	Telefunken Gmbh	Running field pipes
US2749472A (en) *	1952-01-02	1956-06-05	Univ Leland Stanford Junior	Travelling wave tubes
DE936882C (en) *	1952-03-09	1955-12-22	Telefunken Gmbh	Coupling arrangement
NL178756B (en) *	1952-06-02		Mitsubishi Heavy Ind Ltd	METHOD AND MODEL FOR MANUFACTURING CASTS BY VACUUEM.
US2758244A (en) *	1952-06-02	1956-08-07	Rca Corp	Electron beam tubes
NL179062B (en) *	1952-06-12		Schering Ag	PROCEDURE FOR ADHESIVING STRONG, ELASTIC JOINTS.
US2812467A (en) *	1952-10-10	1957-11-05	Bell Telephone Labor Inc	Electron beam system
US2741718A (en) *	1953-03-10	1956-04-10	Sperry Rand Corp	High frequency apparatus
US2836758A (en) *	1953-10-12	1958-05-27	Varian Associates	Electron discharge device
US2809321A (en) *	1953-12-30	1957-10-08	Hughes Aircraft Co	Traveling-wave tube

1953
- 1953-10-14 GB GB28268/53A patent/GB762106A/en not_active Expired
1954
- 1954-02-02 US US407732A patent/US2890370A/en not_active Expired - Lifetime
- 1954-03-22 CH CH322461D patent/CH322461A/en unknown
- 1954-03-25 CH CH328589D patent/CH328589A/en unknown
- 1954-03-26 FR FR66226D patent/FR66226E/en not_active Expired
- 1954-03-26 BE BE527620A patent/BE527620A/en unknown
- 1954-03-26 DE DEI8450A patent/DE1099093B/en active Pending
- 1954-03-26 FR FR66255D patent/FR66255E/en not_active Expired
- 1954-04-24 FR FR66266D patent/FR66266E/en not_active Expired
- 1954-08-02 US US447173A patent/US2824996A/en not_active Expired - Lifetime
- 1954-09-14 DE DEL19900A patent/DE1001360B/en active Pending
- 1954-10-11 CH CH336509D patent/CH336509A/en unknown
- 1954-10-12 DE DEI9245A patent/DE1108336B/en active Pending
- 1954-10-13 FR FR67269D patent/FR67269E/en not_active Expired
- 1954-10-13 FR FR67270D patent/FR67270E/en not_active Expired
- 1954-10-14 BE BE532535A patent/BE532535A/en unknown
1955
- 1955-04-21 US US502811A patent/US2871392A/en not_active Expired - Lifetime
- 1955-05-25 CH CH334859D patent/CH334859A/en unknown
- 1955-06-21 DE DEI10339A patent/DE1109272B/en active Pending
- 1955-06-21 BE BE539158A patent/BE539158A/en unknown
- 1955-06-21 FR FR68866D patent/FR68866E/en not_active Expired
- 1955-08-22 US US529818A patent/US2908843A/en not_active Expired - Lifetime
- 1955-08-24 US US530224A patent/US2918593A/en not_active Expired - Lifetime
- 1955-09-09 GB GB25850/55A patent/GB787603A/en not_active Expired
- 1955-09-13 FR FR69376D patent/FR69376E/en not_active Expired
- 1955-09-14 BE BE541278A patent/BE541278A/en unknown
- 1955-09-16 FR FR69772D patent/FR69772E/en not_active Expired
- 1955-09-21 BE BE541462A patent/BE541462A/en unknown
1956
- 1956-05-28 GB GB16429/56A patent/GB799236A/en not_active Expired
- 1956-06-01 FR FR70719D patent/FR70719E/en not_active Expired
1957
- 1957-01-08 GB GB713/57A patent/GB836219A/en not_active Expired
- 1957-01-11 GB GB1147/57A patent/GB831514A/en not_active Expired
- 1957-05-24 CH CH351679D patent/CH351679A/en unknown
- 1957-05-27 FR FR72041D patent/FR72041E/en not_active Expired
1958
- 1958-01-07 FR FR755344A patent/FR73056E/en not_active Expired
- 1958-01-08 FR FR755436A patent/FR73213E/en not_active Expired
- 1958-08-06 FR FR772009A patent/FR73991E/en not_active Expired
- 1958-08-07 BE BE570152A patent/BE570152A/en unknown

Also Published As

Publication number	Publication date
US2871392A (en)	1959-01-27
CH322461A (en)	1957-06-15
BE527620A (en)	1956-11-23
FR73991E (en)	1960-10-31
CH328589A (en)	1958-03-15
FR70719E (en)	1959-07-10
FR73213E (en)	1960-09-23
GB836219A (en)	1960-06-01
DE1109272B (en)	1961-06-22
US2824996A (en)	1958-02-25
BE539158A (en)	1959-07-17
CH336509A (en)	1959-02-28
FR69376E (en)	1958-11-06
BE541278A (en)	1959-08-14
BE541462A (en)	1959-08-14
CH351679A (en)	1961-01-31
US2918593A (en)	1959-12-22
FR73056E (en)	1960-09-22
US2890370A (en)	1959-06-09
BE532535A (en)	1958-02-14
FR67269E (en)	1958-02-19
GB799236A (en)	1958-08-06
FR66226E (en)	1956-06-05
FR67270E (en)	1958-02-19
BE570152A (en)	1961-08-11
GB787603A (en)	1957-12-11
GB762106A (en)	1956-11-21
FR69772E (en)	1958-12-30
GB831514A (en)	1960-03-30
CH334859A (en)	1958-12-15
FR68866E (en)	1958-06-11
FR66255E (en)	1956-06-28
DE1099093B (en)	1961-02-09
FR66266E (en)	1956-06-28
DE1001360B (en)	1957-01-24
US2908843A (en)	1959-10-13
DE1108336B (en)	1961-06-08

Publication	Publication Date	Title
FR1098804A (en)	1955-08-22	Structure of traveling wave amplifiers
CH334111A (en)	1958-11-15	Traveling wave tube
FR68866E (en)	1958-06-11	Structure of traveling wave amplifiers
FR979203A (en)	1951-04-24	Traveling wave amplifiers
FR1111547A (en)	1956-03-01	Slow wave circuits for traveling wave tubes
FR68751E (en)	1958-06-10	Structure of traveling wave amplifiers
FR1118798A (en)	1956-06-11	Traveling wave tube
FR72078E (en)	1960-03-21	Traveling wave tube with high amplification degree
FR1159105A (en)	1958-06-23	Traveling wave amplifier tube
FR1131125A (en)	1957-02-18	Microwave attenuator for traveling wave tubes
FR1133939A (en)	1957-04-03	Traveling wave electronic devices
FR1132464A (en)	1957-03-12	Traveling wave amplifier tube
FR1111098A (en)	1956-02-22	Traveling wave amplifiers
FR1076379A (en)	1954-10-26	Traveling wave tube
FR1109384A (en)	1956-01-25	Improvements to waveguides
FR1115719A (en)	1956-04-27	Waveguide connections
FR1115740A (en)	1956-04-27	Traveling wave tube
FR1096733A (en)	1955-06-23	Traveling wave tube
FR1147080A (en)	1957-11-19	Traveling wave amplifier
FR1080960A (en)	1954-12-15	Wave amplifier
BE532534A (en)	1958-02-14	Traveling wave tubes
FR1172964A (en)	1959-02-18	Traveling wave tubes
FR1115741A (en)	1956-04-27	Advanced traveling wave tube
FR1178642A (en)	1959-05-13	Traveling wave amplifier tubes
FR68962E (en)	1958-08-26	Ultra-shortwave amplifier tube