GB1078508A

GB1078508A – Improvements in or relating to magnetrons
– Google Patents

GB1078508A – Improvements in or relating to magnetrons
– Google Patents
Improvements in or relating to magnetrons

Info

Publication number
GB1078508A

GB1078508A
GB33991/65A
GB3399165A
GB1078508A
GB 1078508 A
GB1078508 A
GB 1078508A
GB 33991/65 A
GB33991/65 A
GB 33991/65A
GB 3399165 A
GB3399165 A
GB 3399165A
GB 1078508 A
GB1078508 A
GB 1078508A
Authority
GB
United Kingdom
Prior art keywords
rotor
teeth
strap
straps
projecting
Prior art date
1965-08-09
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
GB33991/65A
Inventor
Brian Frederick Cooper
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.)

Teledyne UK Ltd

Original Assignee
English Electric Valve 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.)
1965-08-09
Filing date
1965-08-09
Publication date
1967-08-09

1965-08-09
Application filed by English Electric Valve Co Ltd
filed
Critical
English Electric Valve Co Ltd

1965-08-09
Priority to GB33991/65A
priority
Critical
patent/GB1078508A/en

1966-07-20
Priority to US566612A
priority
patent/US3441796A/en

1966-07-27
Priority to CH1084966A
priority
patent/CH447399A/en

1966-08-04
Priority to DE19661541002
priority
patent/DE1541002A1/en

1966-08-04
Priority to FR72113A
priority
patent/FR1498510A/en

1966-08-09
Priority to NL6611176A
priority
patent/NL6611176A/xx

1967-08-09
Publication of GB1078508A
publication
Critical
patent/GB1078508A/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

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

H01J23/18—Resonators

H01J23/20—Cavity resonators; Adjustment or tuning thereof

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

H01J23/18—Resonators

H01J23/20—Cavity resonators; Adjustment or tuning thereof

H01J23/213—Simultaneous tuning of more than one resonator, e.g. resonant cavities of a magnetron

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

H01J23/18—Resonators

H01J23/22—Connections between resonators, e.g. strapping for connecting resonators of a magnetron

H—ELECTRICITY

H01—ELECTRIC ELEMENTS

H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons

H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field

H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode

H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix

H01J25/587—Multi-cavity magnetrons

Abstract

1,078,508. Magnetrons. ENGLISH ELECTRIC VALVE CO. Ltd. March 11, 1966 [Aug. 9, 1965], No. 33991/65. Heading H1D. Each strap of a strapped magnetron includes a plurality of discrete surfaces, e.g. teeth, which co-operate to provide a plurality of inter-strap capacitances distributed along the strap lengths, a rotor having a plurality of discrete conductive parts being arranged such that, upon rotation, the parts in turn traverse the dielectric spaces of the capacitances, thereby permitting a high rate of cyclic frequency tuning. In one embodiment the straps (6, 8, Fig. 1, not shown), are connected to a pair of spaced discs (7, 9) lying in planes perpendicular to the magnetron axis, and having axially projecting teeth (10, 11), the rotor (12) lying between the two discs and having a corresponding set of teeth (13) projecting from each face. In another embodiment (Figs. 2, 3 and 4, not shown), the straps (17, 19) extend axially and have radially projecting teeth (101, 111), the end of a cylindrical rotor (112) having a circumferential array of axial slot apertures (131) projecting between the two straps. The rotor may be rotated magnetically, and the opposite end of the anode block may be provided with a normal strap system.

GB33991/65A
1965-08-09
1965-08-09
Improvements in or relating to magnetrons

Expired

GB1078508A
(en)

Priority Applications (6)

Application Number
Priority Date
Filing Date
Title

GB33991/65A

GB1078508A
(en)

1965-08-09
1965-08-09
Improvements in or relating to magnetrons

US566612A

US3441796A
(en)

1965-08-09
1966-07-20
Magnetrons having cyclically varying frequencies

CH1084966A

CH447399A
(en)

1965-08-09
1966-07-27

Magnetron with shunted cavities

DE19661541002

DE1541002A1
(en)

1965-08-09
1966-08-04

Magnetron with coupling lines

FR72113A

FR1498510A
(en)

1965-08-09
1966-08-04

Twin connection magnetrons

NL6611176A

NL6611176A
(en)

1965-08-09
1966-08-09

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB33991/65A

GB1078508A
(en)

1965-08-09
1965-08-09
Improvements in or relating to magnetrons

Publications (1)

Publication Number
Publication Date

GB1078508A
true

GB1078508A
(en)

1967-08-09

Family
ID=10359989
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB33991/65A
Expired

GB1078508A
(en)

1965-08-09
1965-08-09
Improvements in or relating to magnetrons

Country Status (6)

Country
Link

US
(1)

US3441796A
(en)

CH
(1)

CH447399A
(en)

DE
(1)

DE1541002A1
(en)

FR
(1)

FR1498510A
(en)

GB
(1)

GB1078508A
(en)

NL
(1)

NL6611176A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2192310A
(en)

*

1984-06-14
1988-01-06
Airtech Ltd
Tunable RF cavity device

Families Citing this family (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3899715A
(en)

*

1972-06-22
1975-08-12
English Electric Valve Co Ltd
Magnetron with rotatable tuning means

GB1485949A
(en)

*

1973-11-07
1977-09-14
Emi Varian Ltd
Magnetrons

US3914644A
(en)

*

1974-04-18
1975-10-21
Varian Associates
Rotary tuner for circular electric mode crossed field tube

US3904919A
(en)

*

1974-05-06
1975-09-09
Varian Associates
Rotary tuner for a circular electric mode crossed field tube

SE399151B
(en)

*

1976-05-21
1978-01-30
Philips Svenska Ab

VOTE MAGNETRON

GB1548038A
(en)

*

1976-09-16
1979-07-04
Emi Varian Ltd
Spin tuned magnetrons

EP0018724B1
(en)

*

1979-05-01
1981-10-07
Thorn Emi-Varian Limited
Spin-tuned magnetron

US4555680A
(en)

*

1983-07-05
1985-11-26
M/A-Com, Inc.
Magnetron tuned programmably using step motor

SE451356B
(en)

*

1983-08-05
1987-09-28
Philips Norden Ab

DEVICE AT A TEMPORARY MAGNET

Family Cites Families (8)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2542899A
(en)

*

1944-11-30
1951-02-20
Raytheon Mfg Co
Cavity resonator electron discharge device

US2506955A
(en)

*

1945-05-14
1950-05-09
Bell Telephone Labor Inc
Tunable high-frequency circuits

US2666165A
(en)

*

1946-01-03
1954-01-12
Hutchinson Franklin
Tunable magnetron oscillator

FR1038195A
(en)

*

1951-06-07
1953-09-25
Csf

Multi-Cavity Resonant Circuit Enhancements

DE1302938B
(en)

*

1961-11-15

US3379925A
(en)

*

1962-12-24
1968-04-23
Raytheon Co
Tunable magnetron having a capacitive transducer magnetically coupled to the tuning member

US3343031A
(en)

*

1963-12-21
1967-09-19
Philips Corp
Tunable electronic tube

US3365609A
(en)

*

1964-09-01
1968-01-23
Philips Corp
Transducer for use with variable frequency magnetrons

1965

1965-08-09
GB
GB33991/65A
patent/GB1078508A/en
not_active
Expired

1966

1966-07-20
US
US566612A
patent/US3441796A/en
not_active
Expired – Lifetime

1966-07-27
CH
CH1084966A
patent/CH447399A/en
unknown

1966-08-04
FR
FR72113A
patent/FR1498510A/en
not_active
Expired

1966-08-04
DE
DE19661541002
patent/DE1541002A1/en
active
Pending

1966-08-09
NL
NL6611176A
patent/NL6611176A/xx
unknown

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2192310A
(en)

*

1984-06-14
1988-01-06
Airtech Ltd
Tunable RF cavity device

Also Published As

Publication number
Publication date

DE1541002A1
(en)

1969-07-24

FR1498510A
(en)

1967-10-20

NL6611176A
(en)

1967-02-10

US3441796A
(en)

1969-04-29

CH447399A
(en)

1967-11-30

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