JPS55123218A - Circulator and isolator - Google Patents

Circulator and isolator

Info

Publication number
JPS55123218A
JPS55123218A JP3030779A JP3030779A JPS55123218A JP S55123218 A JPS55123218 A JP S55123218A JP 3030779 A JP3030779 A JP 3030779A JP 3030779 A JP3030779 A JP 3030779A JP S55123218 A JPS55123218 A JP S55123218A
Authority
JP
Japan
Prior art keywords
magnetic body
fixed
soft magnetic
magnet
miniaturized
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.)
Pending
Application number
JP3030779A
Other languages
Japanese (ja)
Inventor
Shigeru Takeda
Masaharu Kawashima
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP3030779A priority Critical patent/JPS55123218A/en
Publication of JPS55123218A publication Critical patent/JPS55123218A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/52—One-way transmission networks, i.e. unilines
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Landscapes

  • Non-Reversible Transmitting Devices (AREA)

Abstract

PURPOSE:To miniaturize and price low a lumped constant circulator and isolator by assembling them in a fixed way. CONSTITUTION:On soft magnetic body 8, earth plate 10 is bonded hermetically and fixed and near the center over earth plate 10, shielding plate 11 in which two discoid ferrite cores 12 and three center conductors 13 have been contained is fixed hermetically. On cores 12, permanent magnet 9 is fixed in contact with shielding plate 11 and soft magnetic body 21 interposed. Further, magnet is covered with fixing metal fitting 22 from its upper part to fix magnet 9 to magnetic body 21. Thus, this can be miniaturized and priced low. Additionally, using a soft magnetic body as fixing metal fitting 22 makes a magnetic circuit a closed circuit, and consequently while permanent magnet 9 is miniaturized, the variation of characteristics due to an external magnetic influence can remarkably be reduced.
JP3030779A 1979-03-15 1979-03-15 Circulator and isolator Pending JPS55123218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3030779A JPS55123218A (en) 1979-03-15 1979-03-15 Circulator and isolator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3030779A JPS55123218A (en) 1979-03-15 1979-03-15 Circulator and isolator

Publications (1)

Publication Number Publication Date
JPS55123218A true JPS55123218A (en) 1980-09-22

Family

ID=12300106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3030779A Pending JPS55123218A (en) 1979-03-15 1979-03-15 Circulator and isolator

Country Status (1)

Country Link
JP (1) JPS55123218A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123713A (en) * 1981-01-26 1982-08-02 Hitachi Metals Ltd Lumped constant type circulator and isolator
JPS583402A (en) * 1981-06-30 1983-01-10 Hitachi Metals Ltd Wide band double thermal isolator
JPS58101504U (en) * 1981-12-28 1983-07-11 株式会社東芝 Microstrip liner curator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334317A (en) * 1964-01-31 1967-08-01 Sylvania Electric Prod Ferrite stripline circulator having closed magnetic loop path and centrally located, conductive foil overlying radially extending center conductors
US3621476A (en) * 1969-10-02 1971-11-16 Tdk Electronics Co Ltd Circulator having heat dissipating plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334317A (en) * 1964-01-31 1967-08-01 Sylvania Electric Prod Ferrite stripline circulator having closed magnetic loop path and centrally located, conductive foil overlying radially extending center conductors
US3621476A (en) * 1969-10-02 1971-11-16 Tdk Electronics Co Ltd Circulator having heat dissipating plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123713A (en) * 1981-01-26 1982-08-02 Hitachi Metals Ltd Lumped constant type circulator and isolator
JPS583402A (en) * 1981-06-30 1983-01-10 Hitachi Metals Ltd Wide band double thermal isolator
JPS58101504U (en) * 1981-12-28 1983-07-11 株式会社東芝 Microstrip liner curator
JPS6314483Y2 (en) * 1981-12-28 1988-04-22

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