FR1131125A - Microwave attenuator for traveling wave tubes - Google Patents

Microwave attenuator for traveling wave tubes

Info

Publication number
FR1131125A
FR1131125A FR1131125DA FR1131125A FR 1131125 A FR1131125 A FR 1131125A FR 1131125D A FR1131125D A FR 1131125DA FR 1131125 A FR1131125 A FR 1131125A
Authority
FR
France
Prior art keywords
traveling wave
wave tubes
microwave attenuator
attenuator
microwave
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
Other languages
French (fr)
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.)
Sperry Corp
Original Assignee
Sperry Corp
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 Sperry Corp filed Critical Sperry Corp
Application granted granted Critical
Publication of FR1131125A publication Critical patent/FR1131125A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5001—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with carbon or carbonisable materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
    • Y10T428/292—In coating or impregnation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Chemically Coating (AREA)
  • Microwave Tubes (AREA)
  • Ceramic Products (AREA)
FR1131125D 1954-05-04 1955-04-18 Microwave attenuator for traveling wave tubes Expired FR1131125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US427439A US2880120A (en) 1954-05-04 1954-05-04 Method of manufacturing a microwave attenuator for travelling wave tube

Publications (1)

Publication Number Publication Date
FR1131125A true FR1131125A (en) 1957-02-18

Family

ID=23694876

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1131125D Expired FR1131125A (en) 1954-05-04 1955-04-18 Microwave attenuator for traveling wave tubes

Country Status (5)

Country Link
US (1) US2880120A (en)
DE (1) DE1013732B (en)
FR (1) FR1131125A (en)
GB (1) GB770083A (en)
NL (2) NL93132C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939993A (en) * 1957-01-07 1960-06-07 Gen Electric Traveling-wave tube attenuators
US3043040A (en) * 1957-09-06 1962-07-10 Silva Tony Christiano Method of transforming new bricks into bricks which simulate aged bricks
US3026214A (en) * 1957-12-13 1962-03-20 Gen Electric Co Ltd Process for production of low permeability carbon and resultant article
US3039897A (en) * 1958-04-09 1962-06-19 Robert W Waring Semiconductor and method of making the same
US3475707A (en) * 1966-12-21 1969-10-28 Varian Associates Porous intermediate layer for affixing lossy coatings to r.f. tube circuits
US3922383A (en) * 1974-02-28 1975-11-25 Universal Oil Prod Co Polymeric laminates
US5882726A (en) * 1996-01-02 1999-03-16 Msnw, Inc. Low-temperature densification of carbon fiber preforms by impregnation and pyrolysis of sugars
CN113620696B (en) * 2021-08-05 2022-10-14 中国科学院福建物质结构研究所 Low-dielectric high-loss silicon oxide attenuation ceramic composition, silicon oxide attenuation ceramic and preparation method and application thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1091616A (en) * 1911-03-13 1914-03-31 Gen Electric Graphite conductor.
US1745939A (en) * 1926-07-19 1930-02-04 Rca Corp Unalterable ohmic resistance
US2057431A (en) * 1933-03-29 1936-10-13 Raymond H Hobrock Method of making resistance elements
US2341219A (en) * 1940-12-06 1944-02-08 Owens Corning Fiberglass Corp Carbonaceous coating for glass fibers
FR954564A (en) * 1946-10-22 1950-01-03
US2487581A (en) * 1948-03-31 1949-11-08 Theodore R Palumbo Electrical resistor and method of making same

Also Published As

Publication number Publication date
NL196805A (en)
NL93132C (en)
US2880120A (en) 1959-03-31
DE1013732B (en) 1957-08-14
GB770083A (en) 1957-03-13

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