GB582440A - Improvements in or relating to electron discharge devices employing hollow resonators - Google Patents

Improvements in or relating to electron discharge devices employing hollow resonators

Info

Publication number
GB582440A
GB582440A GB13425/41A GB1342541A GB582440A GB 582440 A GB582440 A GB 582440A GB 13425/41 A GB13425/41 A GB 13425/41A GB 1342541 A GB1342541 A GB 1342541A GB 582440 A GB582440 A GB 582440A
Authority
GB
United Kingdom
Prior art keywords
resonator
envelope
resonators
apertures
entrant
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
GB13425/41A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB13425/41A priority Critical patent/GB582440A/en
Priority to US618548A priority patent/US2469240A/en
Publication of GB582440A publication Critical patent/GB582440A/en
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
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection
    • 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
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/26—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is coaxial with the axis of the resonator or resonators and is tube-like before reflection

Landscapes

  • Lasers (AREA)
  • Particle Accelerators (AREA)
  • Microwave Tubes (AREA)

Abstract

582,440. High-frequency discharge apparatus. PEARCE, A. F. Oct. 18, 1941, No. 13425. [Classes 39 (i) and 40 (iii)] In electron discharge apparatus employing one or more hollow resonators having apertures through which an electron stream can pass, the apertures 4 are located between the periphery and the central part of the resonator 3, and in the annular space formed by a reentrant part 2 of the envelope 1 so that the central part of the resonator lies outside the envelope. A tuning device 15 engages a sleeve 16 secured to one wall 17, which is preferably corrugated, and adjusts it relatively to the other wall 18 which is provided with a reentrant portion. The tuning device is accommodated in the reentrant part 2 of the envelope, which also houses a concentric line 19, terminating in a coupling loop 20 which projects into the central part of the resonator. Where two resonators in series are used, the re-entrant part of the envelope may extend the whole length of the envelope, and the tuning devices disposed at opposite ends. For cooling, the resonators may be provided with radiating fins, and cooling air or water passed through the re-entrant portion 2. The device may be used as a velocity modulation device, in which the electrons after being velocity modulated in their passage through the gap 4 are reflected back again by an electrode 6 ; or it may be used arranged as a device employing two resonators in series, or as a thermionic valve in which the resonator functions as the input circuit. The cathode 5 is of annular form and of the indirectly heated type, and the electron stream is focussed by annular electrodes 7. The outer part 21 of the resonator is supported in any suitable manner relatively to the other parts, and the gap may be short circuited at a number of points by thin bars or wires radially disposed. The part of the resonator at which it is crossed by the re-entrant part 2 of the envelope, is preferably arranged to co-incide with a voltage node as described in Specification 574,708. The portion 2 may be provided with protrusions as described in Specification 507,840, which are engaged by rings of insulating material carrying the cathode and focusing electrodes as a unitary structure, and also rings carrying the electrode 6, so as to align them with respect to the resonator apertures 4.
GB13425/41A 1941-10-18 1941-10-18 Improvements in or relating to electron discharge devices employing hollow resonators Expired GB582440A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB13425/41A GB582440A (en) 1941-10-18 1941-10-18 Improvements in or relating to electron discharge devices employing hollow resonators
US618548A US2469240A (en) 1941-10-18 1945-09-25 Hollow resonator discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13425/41A GB582440A (en) 1941-10-18 1941-10-18 Improvements in or relating to electron discharge devices employing hollow resonators

Publications (1)

Publication Number Publication Date
GB582440A true GB582440A (en) 1946-11-18

Family

ID=10022727

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13425/41A Expired GB582440A (en) 1941-10-18 1941-10-18 Improvements in or relating to electron discharge devices employing hollow resonators

Country Status (2)

Country Link
US (1) US2469240A (en)
GB (1) GB582440A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682011A (en) * 1948-05-20 1954-06-22 Cie General De Telegraphie San Multicellular velocity-modulated tube
NL94759C (en) * 1952-07-14

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2167201A (en) * 1935-06-28 1939-07-25 Pintsch Julius Kg Electron tube
US2242275A (en) * 1937-10-11 1941-05-20 Univ Leland Stanford Junior Electrical translating system and method
US2259690A (en) * 1939-04-20 1941-10-21 Univ Leland Stanford Junior High frequency radio apparatus
CH227683A (en) * 1940-04-24 1943-06-30 Licentia Gmbh Time-of-flight tube with at least one toroidal cavity resonator.

Also Published As

Publication number Publication date
US2469240A (en) 1949-05-03

Similar Documents

Publication Publication Date Title
USRE23369E (en) Diode oscillator
US2304186A (en) Velocity modulated tube
US2250698A (en) Magnetron
GB546774A (en) Half-wave velocity modulation electron discharge tube
GB454361A (en) Improvements in or relating to thermiomic valve arrangements
US2466063A (en) High-power high-frequency electron discharge apparatus
US2409693A (en) Electron discharge device
US2782342A (en) Magnetron
GB582440A (en) Improvements in or relating to electron discharge devices employing hollow resonators
US2222898A (en) High-frequency apparatus
US2402601A (en) Electron discharge device
US2108830A (en) Electron discharge apparatus
US2553425A (en) Electron discharge device of the magnetron type
US3365601A (en) High power vacuum tube with magnetic beaming
US2456579A (en) Electron discharge device for ultra high frequencies
US2953714A (en) High frequency electric discharge devices
US2447719A (en) Electron tube
US2557700A (en) Resnatron anode with cooling means
US2828437A (en) Low inductance cathode and tube structure
US2760104A (en) Resnatron with separate retarding field
GB582173A (en) Improvements in or relating to electron discharge devices employing hollow resonators
US2640946A (en) Ultrahigh-frequency thermionic valve
US2468183A (en) Electron discharge device
US2228277A (en) Cathanode tube oscillator
US2488906A (en) Velocity-modulated electrondischarge device