US2875369A - Electron tube apparatus - Google Patents

Electron tube apparatus Download PDF

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Publication number
US2875369A
US2875369A US567957A US56795756A US2875369A US 2875369 A US2875369 A US 2875369A US 567957 A US567957 A US 567957A US 56795756 A US56795756 A US 56795756A US 2875369 A US2875369 A US 2875369A
Authority
US
United States
Prior art keywords
door
tuning
cavity
resonator
body portion
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 - Lifetime
Application number
US567957A
Other languages
English (en)
Inventor
George R Chambers
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.)
Varian Medical Systems Inc
Original Assignee
Eitel Mccullough 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
Priority to NL214550D priority Critical patent/NL214550A/xx
Application filed by Eitel Mccullough Inc filed Critical Eitel Mccullough Inc
Priority to US567957A priority patent/US2875369A/en
Priority to GB39627/56A priority patent/GB813711A/en
Priority to CH340914D priority patent/CH340914A/fr
Priority to FR1172709D priority patent/FR1172709A/fr
Application granted granted Critical
Publication of US2875369A publication Critical patent/US2875369A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01J23/207—Tuning of single resonator

Definitions

  • An object of the present invention is to provide improved tunable cavity resonator structure capable of producing a higher resonant frequency for a given size cavity than was heretofore possible.
  • the separate drift tube sections are joined in the following manner to form internal resonator portions 24 adjacent the gaps 13, 14 and 15.
  • the three internal resonator portions are identical, and therefore particular reference is made to the second or intermediate resonator structure which provides the clearest disclosure.
  • Circular end plates 25 of metal such as copper are brazed on the drift tube sections adjacent the gaps 13, 14 and 15.
  • a cylindrical envelope section or window 26 of dielectric material such as ceramic is positioned between the end plates 25 and connected thereto by means of the conventional sealing ange structures 27.
  • the tuning boxes 30 formed chambers having fixed volume, they would serve merely to provide cavity resonators which are larger than those formed by the evacuated portions of the cavities. This would provide cavities of larger volume and therefore lower frequency but obviously would not present any means for varying the volume in operation to accomplish tuning.
  • the electrically effective outer ends of the tuning boxes Sti are :made radially adjustable relative to the tube axis. Such electrically effective outer ends are designated generally at 41 and are called tuning doors.
  • each of the tuning doors comprises a body portion 42 preferably in the form of a hollow casting to lighten the structure.
  • a particularly important feature of door 41 is that the lower or inner surface of its body portion 42 has a concave shape as will be described in greater detail hereinafter.
  • the internal wall surface of body portion 42 is provided with a plurality of ribs 43 which are tapped to accommodate screws 44.
  • a cover plate 45 is attached by means of screws 44, and two metal strips are clamped between cover plate 4S and the body portion 42 to provide a contact rim comprising inner and outer contact fingers 46 and 4o', respectively.
  • a threaded drive shaft 47 is attached to each of the doors.
  • the substitution of the concave door for a flat door increases the high frequency end of the range by seventy-iive megacycles and yet changes the low frequency end by an increase of only six megacycles. It is believed that at least two reasons contribute to this desirable result. Obviously, the door 41 occupies more volume by reason of its concave shape than it would occupy if it were made hat across the bottom edges of contact" fingers 46.

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US567957A 1956-02-27 1956-02-27 Electron tube apparatus Expired - Lifetime US2875369A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL214550D NL214550A (fr) 1956-02-27
US567957A US2875369A (en) 1956-02-27 1956-02-27 Electron tube apparatus
GB39627/56A GB813711A (en) 1956-02-27 1956-12-31 Cavity resonator type electron tube apparatus
CH340914D CH340914A (fr) 1956-02-27 1957-02-27 Tube électronique pour très hautes fréquences
FR1172709D FR1172709A (fr) 1956-02-27 1957-02-27 Klystron à cavités résonnantes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US567957A US2875369A (en) 1956-02-27 1956-02-27 Electron tube apparatus

Publications (1)

Publication Number Publication Date
US2875369A true US2875369A (en) 1959-02-24

Family

ID=24269327

Family Applications (1)

Application Number Title Priority Date Filing Date
US567957A Expired - Lifetime US2875369A (en) 1956-02-27 1956-02-27 Electron tube apparatus

Country Status (5)

Country Link
US (1) US2875369A (fr)
CH (1) CH340914A (fr)
FR (1) FR1172709A (fr)
GB (1) GB813711A (fr)
NL (1) NL214550A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972080A (en) * 1959-05-25 1961-02-14 Philips Corp Klystron
US3066267A (en) * 1958-09-03 1962-11-27 Itt Radial resonant cavities
US3169206A (en) * 1959-08-06 1965-02-09 Varian Associates High frequency tube method and apparatus
US3227917A (en) * 1963-05-27 1966-01-04 Eitel Mccullough Inc Cavity resonator with flexible means forming both hermetic seal and pivot point
US3309631A (en) * 1959-12-16 1967-03-14 Varian Associates High frequency tube coaxial transmission line
US3403360A (en) * 1965-01-30 1968-09-24 Philips Corp Wave-guide resonator having various tuning ranges

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2354877B (en) 1999-10-02 2004-03-24 Eev Ltd High frequency apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410109A (en) * 1943-02-13 1946-10-29 Bell Telephone Labor Inc Variable cavity resonator
US2468655A (en) * 1945-08-20 1949-04-26 Peter A Cole Diode detector for hyperfrequencies
US2619611A (en) * 1951-05-29 1952-11-25 Eitel Mccullough Inc Electron tube apparatus
US2629066A (en) * 1951-12-10 1953-02-17 Eitel Maccullough Inc Electron tube
US2779895A (en) * 1951-04-03 1957-01-29 Machlett Lab Inc Cavity resonator device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410109A (en) * 1943-02-13 1946-10-29 Bell Telephone Labor Inc Variable cavity resonator
US2468655A (en) * 1945-08-20 1949-04-26 Peter A Cole Diode detector for hyperfrequencies
US2779895A (en) * 1951-04-03 1957-01-29 Machlett Lab Inc Cavity resonator device
US2619611A (en) * 1951-05-29 1952-11-25 Eitel Mccullough Inc Electron tube apparatus
US2629066A (en) * 1951-12-10 1953-02-17 Eitel Maccullough Inc Electron tube

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066267A (en) * 1958-09-03 1962-11-27 Itt Radial resonant cavities
US2972080A (en) * 1959-05-25 1961-02-14 Philips Corp Klystron
US3169206A (en) * 1959-08-06 1965-02-09 Varian Associates High frequency tube method and apparatus
US3309631A (en) * 1959-12-16 1967-03-14 Varian Associates High frequency tube coaxial transmission line
US3227917A (en) * 1963-05-27 1966-01-04 Eitel Mccullough Inc Cavity resonator with flexible means forming both hermetic seal and pivot point
US3403360A (en) * 1965-01-30 1968-09-24 Philips Corp Wave-guide resonator having various tuning ranges

Also Published As

Publication number Publication date
NL214550A (fr)
GB813711A (en) 1959-05-21
FR1172709A (fr) 1959-02-13
CH340914A (fr) 1959-09-15

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