TW352440B - Method for making Mn-Zn ferrous oxide antenna and antenna thereof - Google Patents

Method for making Mn-Zn ferrous oxide antenna and antenna thereof

Info

Publication number
TW352440B
TW352440B TW086119451A TW86119451A TW352440B TW 352440 B TW352440 B TW 352440B TW 086119451 A TW086119451 A TW 086119451A TW 86119451 A TW86119451 A TW 86119451A TW 352440 B TW352440 B TW 352440B
Authority
TW
Taiwan
Prior art keywords
antenna
ferrous oxide
making
mol
mhz
Prior art date
Application number
TW086119451A
Other languages
Chinese (zh)
Inventor
Kinshiro Takadate
Masatomo Hayashi
Yutaka Yamamoto
Takashi Hatauchi
Teruhiro Makino
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Application granted granted Critical
Publication of TW352440B publication Critical patent/TW352440B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Magnetic Ceramics (AREA)

Abstract

An antenna made of Mn-Zn ferrous oxide is characterized in that the ingredients containing 52-55 mol% of Fe2O3; 35-41 mol% of MnO; 7-10 mol% of ZnO with a mean crystalline granule less than 3 micro; while between 500 - 1500 kHz, the magnetic conductance ratio <mu> is more than 500; the magnetic resonance is 3-12 MHz; while at the frequency between 0.5 -1.9 MHz, the quality co-efficient Qm is more than 10.
TW086119451A 1997-01-23 1997-12-20 Method for making Mn-Zn ferrous oxide antenna and antenna thereof TW352440B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1068997 1997-01-23

Publications (1)

Publication Number Publication Date
TW352440B true TW352440B (en) 1999-02-11

Family

ID=57940064

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086119451A TW352440B (en) 1997-01-23 1997-12-20 Method for making Mn-Zn ferrous oxide antenna and antenna thereof

Country Status (2)

Country Link
KR (1) KR19980070284A (en)
TW (1) TW352440B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691162B1 (en) * 2005-05-16 2007-03-09 삼성전기주식회사 Perpendicular hellical antenna

Also Published As

Publication number Publication date
KR19980070284A (en) 1998-10-26

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