GB772000A - Improvements in or relating to electron discharge devices of the travelling wave type - Google Patents
Improvements in or relating to electron discharge devices of the travelling wave typeInfo
- Publication number
- GB772000A GB772000A GB8457/54A GB845754A GB772000A GB 772000 A GB772000 A GB 772000A GB 8457/54 A GB8457/54 A GB 8457/54A GB 845754 A GB845754 A GB 845754A GB 772000 A GB772000 A GB 772000A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- helix
- wave
- tube
- wire helix
- 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
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- 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
-
- 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
- H01J23/083—Electrostatic 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
- H01J23/16—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
- H01J23/26—Helical slow-wave structures; Adjustment therefor
-
- 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
- H01J23/26—Helical slow-wave structures; Adjustment therefor
- H01J23/27—Helix-derived slow-wave structures
-
- 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
- H01J25/40—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 backward travelling wave being utilised
Landscapes
- Microwave Tubes (AREA)
Abstract
772,000. Travelling-wave tubes. WESTERN ELECTRIC CO., Inc. March 23, 1954 [March 30,1953],No.8457/54. Class 39(1). The wave transmission circuit of a travelling wave tube is a two conductor line comprising a metal core 14, Fig. 1 formed with a helical groove 15 and a wire helix 16 wound, with interposed insulation 17, in the groove, the wire helix and core being at different D.C. potentials and the beam interacting with a spatial harmonic component of a backward wave which is extracted at the gun end of the circuit. The device may be a backward wave oscillator, as shown, or a backward wave amplifier, Fig. 3 (not shown). The wire helix divides the helical groove into two parts with oppositely directed h/f fields parallel to the tube axis ; this is stated to facilitate spatial harmonic operation. The outer diameter of the core and helix diameter are equal, and the helical groove is of uniform pitch. The output is taken by integral extensions of the helix and core which form a coaxial line 23 and the other end of the line has a reflectionless termination of loss material 27, e.g. colloidal graphite, packed into the space between 16 and 14 ; the amount of the filling may be increased gradually over the last few turns to provide a broad band termination. Focusing is achieved electrostatically by keeping 14, 16 at different D.C. potentials and keeping electrode 26 at a D.C. potential between that of 14, 16, or might be achieved by a solenoid. The beam is produced by annular cathode 12. Since variation in beam velocity varies the frequency, frequency modulation can be achieved by connecting signal source 25 between cathode 12 and core 14. In an amplifier, Fig. 3 (not shown) coaxial feeder lines are provided at both ends of the tube. In modifications, the wire helix can be of ribbon cross section instead of circular ; the core 14 can be replaced by a hollow tube the inner surface of which is helically grooved. Specifications 734,479 and 772,001 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US345502A US2843791A (en) | 1953-03-30 | 1953-03-30 | Traveling wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB772000A true GB772000A (en) | 1957-04-10 |
Family
ID=23355312
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8457/54A Expired GB772000A (en) | 1953-03-30 | 1954-03-23 | Improvements in or relating to electron discharge devices of the travelling wave type |
| GB8458/54A Expired GB772001A (en) | 1953-03-30 | 1954-03-23 | Improvements in or relating to electron discharge devices of the travelling wave type |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8458/54A Expired GB772001A (en) | 1953-03-30 | 1954-03-23 | Improvements in or relating to electron discharge devices of the travelling wave type |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US2843791A (en) |
| BE (2) | BE527669A (en) |
| DE (2) | DE959299C (en) |
| FR (3) | FR1094923A (en) |
| GB (2) | GB772000A (en) |
| NL (1) | NL88154C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2843791A (en) * | 1953-03-30 | 1958-07-15 | Bell Telephone Labor Inc | Traveling wave tube |
| DE1131816B (en) * | 1956-03-05 | 1962-06-20 | Siemens Ag | Run-time tubes with speed modulation, especially runway tubes, for amplifying very short electrical waves, especially millimeter waves |
| US2941113A (en) * | 1957-04-01 | 1960-06-14 | Hughes Aircraft Co | Traveling-wave tube |
| DE1100825B (en) * | 1957-05-23 | 1961-03-02 | Telefunken Gmbh | Electrostatic electron beam generating system for the generation of a hollow electron beam, especially for transit tubes with bundled electron flow |
| NL105112C (en) * | 1958-05-15 | |||
| DE1107346B (en) * | 1959-03-12 | 1961-05-25 | Telefunken Patent | Electrostatic focusing arrangement for the bundled guidance of the hollow electron beam of a traveling wave tube |
| DE1295703B (en) * | 1961-02-14 | 1969-05-22 | Telefunken Patent | Lauffeldrohre with an electrostatically bundled electron beam |
| US3382399A (en) * | 1965-05-06 | 1968-05-07 | Army Usa | Modified traveling wave tube |
| US3391355A (en) * | 1965-10-22 | 1968-07-02 | Itt | Low impedance slotted line |
| US5172029A (en) * | 1991-01-22 | 1992-12-15 | The United States Of America As Represented By The United States Department Of Energy | Shielded helix traveling wave cathode ray tube deflection structure |
| USD362683S (en) | 1994-01-03 | 1995-09-26 | Sanford Corporation | Combined eraser system and dry markers |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL40884C (en) * | 1933-10-23 | |||
| US2312723A (en) * | 1939-08-16 | 1943-03-02 | Bell Telephone Labor Inc | Electron discharge device |
| NL187376B (en) * | 1946-01-11 | Northern Telecom Ltd | TELEPHONE VOICE NETWORK. | |
| US2650956A (en) * | 1946-12-24 | 1953-09-01 | Bell Telephone Labor Inc | Amplifier utilizing deflection of an electron beam |
| FR1004458A (en) * | 1947-04-25 | 1952-03-31 | Electrostatic guidance of electronic beams in a given direction | |
| US2541843A (en) * | 1947-07-18 | 1951-02-13 | Philco Corp | Electronic tube of the traveling wave type |
| US2672572A (en) * | 1947-07-18 | 1954-03-16 | Philco Corp | Traveling wave tube |
| BE487149A (en) * | 1948-02-04 | |||
| NL146666B (en) * | 1948-05-27 | Philips Nv | SIGNAL AMPLIFIER. | |
| US2643353A (en) * | 1948-11-04 | 1953-06-23 | Int Standard Electric Corp | Traveling wave tube |
| US2652513A (en) * | 1948-12-11 | 1953-09-15 | Bell Telephone Labor Inc | Microwave amplifier |
| FR993156A (en) * | 1949-06-08 | 1951-10-29 | Thomson Houston Comp Francaise | Structure ensuring a reduction in the propagation speed of an electromagnetic wave |
| US2725499A (en) * | 1949-06-21 | 1955-11-29 | Bell Telephone Labor Inc | High frequency amplifying device |
| US2742588A (en) * | 1950-01-07 | 1956-04-17 | Bell Telephone Labor Inc | Electronic amplifier |
| US2593113A (en) * | 1950-12-29 | 1952-04-15 | Bell Telephone Labor Inc | Regenerative frequency shifting and pulse shaping circuit |
| US2843791A (en) * | 1953-03-30 | 1958-07-15 | Bell Telephone Labor Inc | Traveling wave tube |
-
1953
- 1953-03-30 US US345502A patent/US2843791A/en not_active Expired - Lifetime
- 1953-03-30 US US345503A patent/US2843792A/en not_active Expired - Lifetime
- 1953-11-16 FR FR1094923D patent/FR1094923A/en not_active Expired
- 1953-11-17 FR FR1090850D patent/FR1090850A/en not_active Expired
-
1954
- 1954-02-13 NL NL185109A patent/NL88154C/xx active
- 1954-02-24 DE DEW13320A patent/DE959299C/en not_active Expired
- 1954-03-23 GB GB8457/54A patent/GB772000A/en not_active Expired
- 1954-03-23 GB GB8458/54A patent/GB772001A/en not_active Expired
- 1954-03-27 BE BE527669D patent/BE527669A/xx unknown
- 1954-03-29 BE BE527690D patent/BE527690A/xx unknown
- 1954-04-14 FR FR1107482D patent/FR1107482A/en not_active Expired
- 1954-05-19 DE DEW14021A patent/DE1127003B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2843792A (en) | 1958-07-15 |
| FR1090850A (en) | 1955-04-04 |
| US2843791A (en) | 1958-07-15 |
| FR1107482A (en) | 1956-01-03 |
| DE959299C (en) | 1957-03-07 |
| FR1094923A (en) | 1955-05-25 |
| NL88154C (en) | 1958-05-19 |
| GB772001A (en) | 1957-04-10 |
| DE1127003B (en) | 1962-04-05 |
| BE527690A (en) | 1955-11-23 |
| BE527669A (en) | 1956-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB773394A (en) | Magnet arrangements for travelling wave tubes | |
| GB701034A (en) | Improvements in or relating to travelling wave amplifiers | |
| GB652155A (en) | High frequency electric discharge device | |
| US2615141A (en) | High-frequency electron discharge tube of the traveling wave type | |
| US2645737A (en) | Traveling wave tube | |
| GB772000A (en) | Improvements in or relating to electron discharge devices of the travelling wave type | |
| US2811673A (en) | Traveling wave tube | |
| GB675187A (en) | Beam travelling wave amplifier tube | |
| US2822501A (en) | Slow-wave guide for traveling wave tubes | |
| US2730649A (en) | Traveling wave amplifier | |
| GB672770A (en) | High frequency electron discharge device and circuit | |
| GB754383A (en) | Improvements in or relating to travelling wave tubes | |
| US2836758A (en) | Electron discharge device | |
| US2712614A (en) | Travelling wave tubes | |
| GB769724A (en) | Travelling wave tube | |
| US2889487A (en) | Traveling-wave tube | |
| US2851630A (en) | High power traveling-wave tube | |
| GB1196285A (en) | Improvements in Electron Discharge Devices | |
| US2891190A (en) | Travelling wave tubes | |
| US3076156A (en) | High frequency coupling arrangements for traveling wave tubes | |
| GB804437A (en) | Improvements in and relating to travelling-wave electron discharge devices | |
| GB764681A (en) | Improvements in travelling wave tubes | |
| GB970424A (en) | Travelling wave amplifier tube | |
| US2624859A (en) | Traveling wave amplifier tube | |
| GB806890A (en) | Improvements in or relating to velocity modulation apparatus and electron guns therefor |