GB9106859D0 - Magnetic material for microwave and millimeter wave frequencies - Google Patents

Magnetic material for microwave and millimeter wave frequencies

Info

Publication number
GB9106859D0
GB9106859D0 GB919106859A GB9106859A GB9106859D0 GB 9106859 D0 GB9106859 D0 GB 9106859D0 GB 919106859 A GB919106859 A GB 919106859A GB 9106859 A GB9106859 A GB 9106859A GB 9106859 D0 GB9106859 D0 GB 9106859D0
Authority
GB
United Kingdom
Prior art keywords
microwave
magnetic material
millimeter wave
wave frequencies
frequencies
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.)
Granted
Application number
GB919106859A
Other versions
GB2243152B (en
GB2243152A (en
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of GB9106859D0 publication Critical patent/GB9106859D0/en
Publication of GB2243152A publication Critical patent/GB2243152A/en
Application granted granted Critical
Publication of GB2243152B publication Critical patent/GB2243152B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • H01F1/346—[(TO4) 3] with T= Si, Al, Fe, Ga
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/32—Non-reciprocal transmission devices
GB9106859A 1990-04-04 1991-04-02 Magnetic material for microwave and millimeter wave frequencies Expired - Lifetime GB2243152B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2090747A JP2504273B2 (en) 1990-04-04 1990-04-04 Microwave / millimeter wave magnetic composition

Publications (3)

Publication Number Publication Date
GB9106859D0 true GB9106859D0 (en) 1991-05-22
GB2243152A GB2243152A (en) 1991-10-23
GB2243152B GB2243152B (en) 1993-10-20

Family

ID=14007189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9106859A Expired - Lifetime GB2243152B (en) 1990-04-04 1991-04-02 Magnetic material for microwave and millimeter wave frequencies

Country Status (2)

Country Link
JP (1) JP2504273B2 (en)
GB (1) GB2243152B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08306531A (en) * 1995-05-10 1996-11-22 Murata Mfg Co Ltd Magnetostatic wave device
JP4586215B2 (en) * 1998-04-14 2010-11-24 Ｔｄｋ株式会社 Method for controlling intermodulation product of nonreciprocal circuit element, ferrimagnetic material, and nonreciprocal circuit element using the same
US6933799B1 (en) 1998-04-14 2005-08-23 Tdk Corporation Method of controlling intermodulation distortion of non-reciprocal device
JP2007036108A (en) * 2005-07-29 2007-02-08 Tdk Corp Ceramic material for non reciprocal circuit element of, and its manufacturing method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162715A (en) * 1980-05-20 1981-12-14 Matsushita Electric Ind Co Ltd Magnetic and optical element
JPS627631A (en) * 1985-06-29 1987-01-14 Toshiba Corp Magneto-optical element

Also Published As

Publication number Publication date
GB2243152B (en) 1993-10-20
GB2243152A (en) 1991-10-23
JP2504273B2 (en) 1996-06-05
JPH03288406A (en) 1991-12-18

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20110401