GB592493A - Improvements in ultra high frequency discharge devices - Google Patents

Improvements in ultra high frequency discharge devices

Info

Publication number
GB592493A
GB592493A GB7488/44A GB748844A GB592493A GB 592493 A GB592493 A GB 592493A GB 7488/44 A GB7488/44 A GB 7488/44A GB 748844 A GB748844 A GB 748844A GB 592493 A GB592493 A GB 592493A
Authority
GB
United Kingdom
Prior art keywords
region
electron
maintained
input region
retarding field
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
GB7488/44A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB592493A publication Critical patent/GB592493A/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
    • H01J25/10—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
    • H01J25/12—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 with pencil-like electron stream in the axis of the resonators
    • 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

Landscapes

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

Abstract

592,493. Velocity modulated tubes. WESTERN ELECTRIC CO., Inc. April 21, 1944, No. 7488. Convention date, April 15, 1942. [Class 39 (i)] In high-frequency discharge apparatus an electron stream is compressed axially between a signal input region and a signal output region by means of a retarding field so that electron groups resulting from variation of electron velocity are more closely spaced near the output region than near the input region. The electron stream time through the input region is a full cycle or more whereas the time through the output region is much shorter. In the apparatus shown, a cathode 12 is mounted on a slotted sleeve 22 to reduce heat leakage. Spaced along the path of the electron stream are a control grid 14 and a screen grid 16. An input cavity resonator 36 is coupled to the cathode 12 and the grid 14, while an output resonator 38 is coupled to the screen 16 and the anode 18. Blocking condensers 37 and 39 are provided so that steady potential differences may be maintained between electrodes. A strong retarding field is maintained between grids 14 and 16 to produce the compressing effect desired. A steady retarding field may also be maintained across the input region itself. One or more space charge controlling grids may also be interposed in the drift spaces 15. Specification 516,750 and U.S.A. Specification 2,240,183 are referred to.
GB7488/44A 1942-04-15 1944-04-21 Improvements in ultra high frequency discharge devices Expired GB592493A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US592493XA 1942-04-15 1942-04-15
US439059A US2442662A (en) 1942-04-15 1942-04-15 High-frequency translating apparatus

Publications (1)

Publication Number Publication Date
GB592493A true GB592493A (en) 1947-09-19

Family

ID=26738549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7488/44A Expired GB592493A (en) 1942-04-15 1944-04-21 Improvements in ultra high frequency discharge devices

Country Status (2)

Country Link
US (1) US2442662A (en)
GB (1) GB592493A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128569B (en) * 1955-12-12 1962-04-26 Eitel Mccullough Inc Time-of-flight tubes whose collecting electrode is connected to the adjacent end of the high-frequency tube part through a shunt capacitor at high frequencies
FR2447605A1 (en) * 1979-01-24 1980-08-22 Sits Soc It Telecom Siemens KLYSTRON TWO-CAVITY OSCILLATOR
US5850074A (en) * 1997-08-30 1998-12-15 Daewoo Electronics Co., Ltd. Microwave oven equipped with a microwave generating apparatus designed to reduce secondary electron emission
GB2327805A (en) * 1997-07-31 1999-02-03 Daewoo Electronics Co Ltd Generating microwave frequency energy
GB2327807A (en) * 1997-07-31 1999-02-03 Daewoo Electronics Co Ltd Microwave ovens
GB2327806A (en) * 1997-07-31 1999-02-03 Daewoo Electronics Co Ltd Generating microwave frequency energy
GB2328790A (en) * 1997-08-30 1999-03-03 Daewoo Electronics Co Ltd Microwave generating apparatus for a microwave oven
FR2772186A1 (en) * 1997-08-30 1999-06-11 Daewoo Electronics Co Ltd MICROWAVE OVEN EQUIPPED WITH MICROWAVE OUTPUT CONTROL APPARATUS

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610304A (en) * 1948-03-31 1952-09-09 Rca Corp Thin-walled tubing for use as electrode structures of electron discharge devices
US2591963A (en) * 1948-06-17 1952-04-08 Rca Corp Electron discharge device and circuit
US2768297A (en) * 1948-07-29 1956-10-23 Cie General De Telegraphie San Ultra-short wave oscillator
US2556978A (en) * 1948-10-07 1951-06-12 Bell Telephone Labor Inc Linear accelerator for charged particles
US2550485A (en) * 1949-06-03 1951-04-24 Gen Electric Ultra high frequency electric discharge device and cavity resonator apparatus therefor
US2857480A (en) * 1953-03-27 1958-10-21 Gen Electric Space charge grid electron beam amplifier with dual outputs
NL181629B (en) * 1953-09-26 Johansson Paul Johny DIALYSIS DEVICE.
US2842742A (en) * 1954-04-29 1958-07-08 Eitel Mccullough Inc Modulated beam-type electron tube apparatus
US2876351A (en) * 1955-08-29 1959-03-03 Sanders Associates Inc Ionic time-delay apparatus
US2917656A (en) * 1957-12-27 1959-12-15 William E Waters Klystron amplifier
US5548245A (en) * 1990-03-09 1996-08-20 Eev Limited Electron beam tube arrangements having the input cavity comprised of electrically internal and external body portions
DE4340550A1 (en) * 1993-11-29 1995-06-01 Philips Patentverwaltung Electron tube with an input resonator cavity

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22724E (en) * 1938-04-14 1946-02-19 Radio transmission and reception
US2379819A (en) * 1941-03-07 1945-07-03 Bell Telephone Labor Inc Frequency modulator

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1128569B (en) * 1955-12-12 1962-04-26 Eitel Mccullough Inc Time-of-flight tubes whose collecting electrode is connected to the adjacent end of the high-frequency tube part through a shunt capacitor at high frequencies
FR2447605A1 (en) * 1979-01-24 1980-08-22 Sits Soc It Telecom Siemens KLYSTRON TWO-CAVITY OSCILLATOR
US5883368A (en) * 1997-07-31 1999-03-16 Daewoo Electronics Co., Ltd. Microwave frequency energy generating apparatus provided with a voltage converting means
US5883369A (en) * 1997-07-31 1999-03-16 Daewoo Electronics Co., Ltd. Structurally simple apparatus for generating a microwave frequency energy
GB2327807A (en) * 1997-07-31 1999-02-03 Daewoo Electronics Co Ltd Microwave ovens
GB2327806A (en) * 1997-07-31 1999-02-03 Daewoo Electronics Co Ltd Generating microwave frequency energy
GB2327807B (en) * 1997-07-31 2002-02-13 Daewoo Electronics Co Ltd Microwave oven equipped with a structurally simple apparatus for generating a microwave frequency energy
GB2327805A (en) * 1997-07-31 1999-02-03 Daewoo Electronics Co Ltd Generating microwave frequency energy
GB2327806B (en) * 1997-07-31 2002-02-13 Daewoo Electronics Co Ltd Structurally simple apparatus for generating a microwave frequency energy
AU707635B2 (en) * 1997-07-31 1999-07-15 Daewoo Electronics Corporation Structurally simple apparatus for generating a microwave frequency energy
AU706561B2 (en) * 1997-07-31 1999-06-17 Daewoo Electronics Corporation Microwave oven equipped with a structurally simple apparatus for generating a microwave frequency energy
US5883367A (en) * 1997-07-31 1999-03-16 Daewoo Electronics Co., Ltd. Microwave oven equipped with a structurally simple apparatus for generating a microwave frequency energy
GB2328791A (en) * 1997-08-30 1999-03-03 Daewoo Electronics Co Ltd A microwave oven
FR2772186A1 (en) * 1997-08-30 1999-06-11 Daewoo Electronics Co Ltd MICROWAVE OVEN EQUIPPED WITH MICROWAVE OUTPUT CONTROL APPARATUS
US5850074A (en) * 1997-08-30 1998-12-15 Daewoo Electronics Co., Ltd. Microwave oven equipped with a microwave generating apparatus designed to reduce secondary electron emission
US5914067A (en) * 1997-08-30 1999-06-22 Daewoo Electronics Co., Ltd. Microwave oven equipped with a structurally simple microwave generating apparatus
FR2767963A1 (en) * 1997-08-30 1999-03-05 Daewoo Electronics Co Ltd MICROWAVE OVEN HAVING A STRUCTURALLY SIMPLE MICROWAVE PRODUCTION DEVICE
FR2768010A1 (en) * 1997-08-30 1999-03-05 Daewoo Electronics Co Ltd MICROWAVE OVEN HAVING A MICROWAVE PRODUCTION DEVICE FOR REDUCING THE EMISSION OF SECONDARY ELECTRON
GB2328791B (en) * 1997-08-30 2002-02-13 Daewoo Electronics Co Ltd Microwave oven equipped with a microwave generating apparatus designed to reduce secondary electron emission
GB2328790A (en) * 1997-08-30 1999-03-03 Daewoo Electronics Co Ltd Microwave generating apparatus for a microwave oven
GB2328790B (en) * 1997-08-30 2002-02-27 Daewoo Electronics Co Ltd Microwave oven equipped with a structurally simple microwave generating apparatus

Also Published As

Publication number Publication date
US2442662A (en) 1948-06-01

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