JPS56157101A - Isolator - Google Patents

Isolator

Info

Publication number
JPS56157101A
JPS56157101A JP6090380A JP6090380A JPS56157101A JP S56157101 A JPS56157101 A JP S56157101A JP 6090380 A JP6090380 A JP 6090380A JP 6090380 A JP6090380 A JP 6090380A JP S56157101 A JPS56157101 A JP S56157101A
Authority
JP
Japan
Prior art keywords
line
electrode
plate
junction
impedance
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
JP6090380A
Other languages
Japanese (ja)
Other versions
JPS6333721B2 (en
Inventor
Hidehiko Kato
Bunshiro Tsuda
Tsutomu Noguchi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6090380A priority Critical patent/JPS56157101A/en
Publication of JPS56157101A publication Critical patent/JPS56157101A/en
Publication of JPS6333721B2 publication Critical patent/JPS6333721B2/ja
Granted 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
    • H01P1/32—Non-reciprocal transmission devices
    • H01P1/36—Isolators
    • H01P1/365—Resonance absorption isolators

Landscapes

  • Non-Reversible Transmitting Devices (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To ensure a large isolation, by providing a strip line used for matching to a junction impedance between a ferrimagnetic substance plate and an earth electrode for a magnetic resonance type isolator used at a UHF band. CONSTITUTION:A ferrimagnetic substance plate 2 (dotted line) is inserted into a hole at the center part of a dielectric substrate 1 provided on a single earth conductor, and a junction electrode 4 is joined on the plate 2. The positive and negative reactance circuits used for energizing of rotary magnetic field and comprising a branch line 13 short-circuited to an earth electrode 3' at its termination plus a branch line 12 with an open termination are connected to the two opposite terminals of the electrode 4. At the same time, the impedance converting circuits consisting of a series line 14 and a parallel line 15 are connected to the other two terminals and then to an input/output line 11 and an input/output connector 20. In such constitution, both length lL and lC of the branch lines 13 and 12 are specified respectively to secure a load as a reactance which is equal to a junction impedance between the plate 2 and the electrode 4. Thus a large isolation is obtained.
JP6090380A 1980-05-08 1980-05-08 Isolator Granted JPS56157101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6090380A JPS56157101A (en) 1980-05-08 1980-05-08 Isolator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6090380A JPS56157101A (en) 1980-05-08 1980-05-08 Isolator

Publications (2)

Publication Number Publication Date
JPS56157101A true JPS56157101A (en) 1981-12-04
JPS6333721B2 JPS6333721B2 (en) 1988-07-06

Family

ID=13155774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6090380A Granted JPS56157101A (en) 1980-05-08 1980-05-08 Isolator

Country Status (1)

Country Link
JP (1) JPS56157101A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004221977A (en) * 2003-01-15 2004-08-05 Murata Mfg Co Ltd Manufacturing method of magnetic resonance type irreversible circuit element, magnetic resonance type irreversible circuit element, high frequency module and communication equipment
JP2012054849A (en) * 2010-09-03 2012-03-15 Murata Mfg Co Ltd Magnetic resonance isolator
JP2012054848A (en) * 2010-09-03 2012-03-15 Murata Mfg Co Ltd Magnetic resonance isolator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050843A (en) * 1973-09-04 1975-05-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050843A (en) * 1973-09-04 1975-05-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004221977A (en) * 2003-01-15 2004-08-05 Murata Mfg Co Ltd Manufacturing method of magnetic resonance type irreversible circuit element, magnetic resonance type irreversible circuit element, high frequency module and communication equipment
JP2012054849A (en) * 2010-09-03 2012-03-15 Murata Mfg Co Ltd Magnetic resonance isolator
JP2012054848A (en) * 2010-09-03 2012-03-15 Murata Mfg Co Ltd Magnetic resonance isolator

Also Published As

Publication number Publication date
JPS6333721B2 (en) 1988-07-06

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