GB982170A - Improvements in or relating to wave absorbers for electron tubes - Google Patents

Improvements in or relating to wave absorbers for electron tubes

Info

Publication number
GB982170A
GB982170A GB3453163A GB3453163A GB982170A GB 982170 A GB982170 A GB 982170A GB 3453163 A GB3453163 A GB 3453163A GB 3453163 A GB3453163 A GB 3453163A GB 982170 A GB982170 A GB 982170A
Authority
GB
United Kingdom
Prior art keywords
metal
coating
powdered
absorber
mixture
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
GB3453163A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB982170A publication Critical patent/GB982170A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/24—Terminating devices
    • H01P1/26—Dissipative terminations
    • 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
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/30—Damping arrangements associated with slow-wave structures, e.g. for suppression of unwanted oscillations

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Laminated Bodies (AREA)

Abstract

982,170. Travelling wave tubes; wave absorbers. SIEMENS & HALSKE A.G. Sept. 2, 1963 [Sept. 3, 1962], No. 34531/63. Drawings to Specification. Headings H1D and H1W. A wave absorber for an electron tube, e.g. a travelling wave tube, is in the form of a body constructed from a mixture consisting of or including a powdered metal mixed with a powdered ceramic and powdered quartz, the body including a coating of metal or a part of the surface of the body remote from the absorbing surface thereof. The powdered metal may be chromium or molybdenum or a mixture of these metals, and the powdered ceramic may be aluminium oxide or sapphire or a mixture of these materials. The grain size of the powder is approximately equal to the depth of penetration of the waves into the absorber and the thickness of the coating is between 10 and 20Á. The metal coating may be of molybdenum-manganese, or nickel. A further metal layer may be applied to the coating, and the layer consisting of copper, silver or soldering material and in the form of a flat strip or a corrugated layer. The metal coating may act as a good conductor for the heat produced in the absorber.
GB3453163A 1962-09-03 1963-09-02 Improvements in or relating to wave absorbers for electron tubes Expired GB982170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1962S0081250 DE1290633B (en) 1962-09-03 1962-09-03 Mass absorber for running field tubes

Publications (1)

Publication Number Publication Date
GB982170A true GB982170A (en) 1965-02-03

Family

ID=7509455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3453163A Expired GB982170A (en) 1962-09-03 1963-09-02 Improvements in or relating to wave absorbers for electron tubes

Country Status (4)

Country Link
DE (1) DE1290633B (en)
FR (1) FR84033E (en)
GB (1) GB982170A (en)
NL (1) NL297397A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184252A (en) * 1963-05-29 1965-05-18 Hosea C Cook Stabilizer for tractor lift arms
US5402032A (en) * 1992-10-29 1995-03-28 Litton Systems, Inc. Traveling wave tube with plate for bonding thermally-mismatched elements

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414256A1 (en) * 1978-01-06 1979-08-03 Thomson Csf Matched high power UHF load - is formed on pyramid shaped mandrel by absorbent layer covered with layer of copper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184252A (en) * 1963-05-29 1965-05-18 Hosea C Cook Stabilizer for tractor lift arms
US5402032A (en) * 1992-10-29 1995-03-28 Litton Systems, Inc. Traveling wave tube with plate for bonding thermally-mismatched elements

Also Published As

Publication number Publication date
DE1290633B (en) 1969-03-13
NL297397A (en)
FR84033E (en) 1964-11-13

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