GB1368410A – Velocity modulation tube
– Google Patents
GB1368410A – Velocity modulation tube
– Google Patents
Velocity modulation tube
Info
Publication number
GB1368410A
GB1368410A
GB1825873A
GB1825873A
GB1368410A
GB 1368410 A
GB1368410 A
GB 1368410A
GB 1825873 A
GB1825873 A
GB 1825873A
GB 1825873 A
GB1825873 A
GB 1825873A
GB 1368410 A
GB1368410 A
GB 1368410A
Authority
GB
United Kingdom
Prior art keywords
resonator
resonator circuit
drift space
velocity
april
Prior art date
1972-04-18
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
GB1825873A
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.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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.)
1972-04-18
Filing date
1973-04-16
Publication date
1974-09-25
1973-04-16
Application filed by Nippon Electric Co Ltd
filed
Critical
Nippon Electric Co Ltd
1974-09-25
Publication of GB1368410A
publication
Critical
patent/GB1368410A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
Abstract
1368410 Velocity-modulated tubes NIPPON ELECTRIC CO Ltd 16 April 1973 [18 April 1972] 18258/73 Heading H1D A velocity-modulation tube includes, in order, an input resonator circuit, first and second resonator circuits, and an output resonator circuit, the first resonator circuit having a resonant frequency lower than the centre frequency of the operating pass band, and the normalized length of its immediately succeeding drift space being larger than that immediately succeeding any of the other kinds of resonator circuit, but not being larger than 90 degrees, in terms of the reduced plasma angle. The first resonator circuit may be constituted by a plurality of separate resonators, each separately satisfying the above resonant frequency and drift space condition. Preferably, the first and second resonator circults have resonant frequencies lying respectively below and above the lower and upper edges of the pass band, and the drift spaces may be as indicated on the drawing for the embodiment shown, which has a second resonator circuit formed by two resonators 23 and 26. It is stated that the arrangement permits the electron beam-which tends to be debunched by the action of the gap 20 of the low frequency resonator 19-to be rebunched in the drift space 22 without undue increase in length of the device.
GB1825873A
1972-04-18
1973-04-16
Velocity modulation tube
Expired
GB1368410A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP3889772A
JPS533225B2
(en)
1972-04-18
1972-04-18
Publications (1)
Publication Number
Publication Date
GB1368410A
true
GB1368410A
(en)
1974-09-25
Family
ID=12537980
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1825873A
Expired
GB1368410A
(en)
1972-04-18
1973-04-16
Velocity modulation tube
Country Status (6)
Country
Link
US
(1)
US3819977A
(en)
JP
(1)
JPS533225B2
(en)
DE
(1)
DE2317487C2
(en)
FR
(1)
FR2180836B1
(en)
GB
(1)
GB1368410A
(en)
NL
(1)
NL169531C
(en)
Families Citing this family (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5169355A
(en)
*
1974-12-06
1976-06-15
Nippon Electric Co
Kokoritsu 4 kudosokudohenchokan
JPS51115768A
(en)
*
1975-04-03
1976-10-12
Nec Corp
Wide-band speed modurated tube
GB1506949A
(en)
*
1975-12-13
1978-04-12
English Electric Valve Co Ltd
Velocity modulation tubes
JPS5851655B2
(en)
*
1978-02-02
1983-11-17
日本電気株式会社
multi-cavity klystron
FR2442505A1
(en)
*
1978-11-23
1980-06-20
Commissariat Energie Atomique
DISSYMMETRICAL ION BEAM GROUPER-UNGROUPER OPERATING IN A WIDE RANGE OF SPEEDS
JPS58186138A
(en)
*
1982-04-26
1983-10-31
Toshiba Corp
Klystron device
US4800322A
(en)
*
1984-10-23
1989-01-24
Litton Systems, Inc.
Broadband klystron cavity arrangement
US4764710A
(en)
*
1986-11-19
1988-08-16
Varian Associates, Inc.
High-efficiency broad-band klystron
FR2666169B1
(en)
*
1990-08-24
1992-10-16
Thomson Tubes Electroniques
KLYSTRON WITH EXTENDED INSTANT BANDWIDTH.
US5521551A
(en)
*
1994-11-21
1996-05-28
Ferguson; Patrick E.
Method for suppressing second and higher harmonic power generation in klystrons
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1298200B
(en)
*
1960-09-06
1969-06-26
Varian Associates
Multi-chamber klystron amplifier tubes with a wide range
US3195007A
(en)
*
1960-10-28
1965-07-13
Litton Prec Products Inc
Stagger-tuned klystron with cavities resonant outside passband
US3622834A
(en)
*
1970-04-15
1971-11-23
Varian Associates
High-efficiency velocity modulation tube employing harmonic prebunching
US3594606A
(en)
*
1970-04-15
1971-07-20
Varian Associates
Velocity modulation tube employing cascaded harmonic prebunching
1972
1972-04-18
JP
JP3889772A
patent/JPS533225B2/ja
not_active
Expired
1973
1973-03-26
US
US00344647A
patent/US3819977A/en
not_active
Expired – Lifetime
1973-04-06
DE
DE2317487A
patent/DE2317487C2/en
not_active
Expired
1973-04-13
NL
NLAANVRAGE7305199,A
patent/NL169531C/en
not_active
IP Right Cessation
1973-04-16
FR
FR7313684A
patent/FR2180836B1/fr
not_active
Expired
1973-04-16
GB
GB1825873A
patent/GB1368410A/en
not_active
Expired
Also Published As
Publication number
Publication date
NL169531C
(en)
1982-07-16
DE2317487C2
(en)
1984-09-20
JPS492476A
(en)
1974-01-10
FR2180836B1
(en)
1977-12-30
JPS533225B2
(en)
1978-02-04
US3819977A
(en)
1974-06-25
FR2180836A1
(en)
1973-11-30
NL7305199A
(en)
1973-10-22
NL169531B
(en)
1982-02-16
DE2317487A1
(en)
1973-11-08
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Discriminator circuit. (Machine-translation by Google Translate, not legally binding)
Legal Events
Date
Code
Title
Description
1975-02-05
PS
Patent sealed [section 19, patents act 1949]
1993-05-12
PE20
Patent expired after termination of 20 years
Effective date:
19930415
