JPS5583301A - Isolator - Google Patents

Isolator

Info

Publication number
JPS5583301A
JPS5583301A JP16082678A JP16082678A JPS5583301A JP S5583301 A JPS5583301 A JP S5583301A JP 16082678 A JP16082678 A JP 16082678A JP 16082678 A JP16082678 A JP 16082678A JP S5583301 A JPS5583301 A JP S5583301A
Authority
JP
Japan
Prior art keywords
substrate
resistor
earth conductor
transmission lines
flank
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
JP16082678A
Other languages
Japanese (ja)
Inventor
Hiroharu Konishi
Seizo Akasaka
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 JP16082678A priority Critical patent/JPS5583301A/en
Priority to GB7943553A priority patent/GB2040593A/en
Priority to FR7931005A priority patent/FR2445038A1/en
Publication of JPS5583301A publication Critical patent/JPS5583301A/en
Pending 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
    • H01P1/38—Circulators
    • H01P1/383—Junction circulators, e.g. Y-circulators
    • H01P1/387—Strip line circulators
    • 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

Landscapes

  • Non-Reversible Transmitting Devices (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE: To improve isolation characteristics by providing a resistor on the flank of a magnetic-substance substrate which is most close to an earth conductor on the reverse of the substrate, when connecting one of three transmission lines joined on the substrate at a joint part to the earth conductor via the resistor.
CONSTITUTION: On ferrimagnetic-substance substrate 1 serving as an unreversible element substrate, transmission lines 2a, 2b and 2c as internal conductors are formed being joined by joint part 2d. On the reverse surface of substrate 1, earth conductor 5 is bonded and line 2c is further connected there via resistor 3, but at this time, resistor 3 is not positioned on substrate 1 but fitted on the flank of substrate 1 being close to earth conductor 5. As a result, a reactance component is nearly eliminated to allow the pure resistance component of impedance remain, so that transmission lines on the junction part side can be matched with those on the resistor side covering a broad frequency band by selecting the resistance value of resistor 3. In addition, providing compensation circuit 9 to line 2c improves more isolation performance.
COPYRIGHT: (C)1980,JPO&Japio
JP16082678A 1978-12-19 1978-12-19 Isolator Pending JPS5583301A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP16082678A JPS5583301A (en) 1978-12-19 1978-12-19 Isolator
GB7943553A GB2040593A (en) 1978-12-19 1979-12-18 Microstrip isolator
FR7931005A FR2445038A1 (en) 1978-12-19 1979-12-18 MICRO-STRIP INSULATOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16082678A JPS5583301A (en) 1978-12-19 1978-12-19 Isolator

Publications (1)

Publication Number Publication Date
JPS5583301A true JPS5583301A (en) 1980-06-23

Family

ID=15723237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16082678A Pending JPS5583301A (en) 1978-12-19 1978-12-19 Isolator

Country Status (3)

Country Link
JP (1) JPS5583301A (en)
FR (1) FR2445038A1 (en)
GB (1) GB2040593A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764902U (en) * 1980-10-01 1982-04-17
JPS57135102U (en) * 1981-02-19 1982-08-23
JPS58144904U (en) * 1982-03-23 1983-09-29 日本電気株式会社 microwave integrated circuit isolator
US5611878A (en) * 1994-04-01 1997-03-18 Tdk Corporation Method of manufacturing microwave circulator

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034034C2 (en) * 1980-09-10 1985-07-18 Siemens AG, 1000 Berlin und 8000 München Y-circulator in stripline construction
FR2536588B1 (en) * 1982-11-19 1985-07-19 Thomson Csf COAXIAL MICROWAVE LOAD, TRIPLATE TYPE INSULATOR COMPRISING SUCH A LOAD AND USE OF SUCH AN INSULATOR
IT1213510B (en) * 1986-10-22 1989-12-20 Gte Telecom Spa THREE DOOR SUITABLE CIRCULATOR IN THIN FILM.
JPH1117408A (en) * 1997-06-26 1999-01-22 Nec Corp Surface mounting-type isolator
JP3147061B2 (en) 1997-11-19 2001-03-19 日本電気株式会社 Substrate type non-reciprocal element and integrated circuit using the same
CN106330166A (en) * 2015-06-26 2017-01-11 中兴通讯股份有限公司 Reverse isolation device and electronic device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617951A (en) * 1968-11-21 1971-11-02 Western Microwave Lab Inc Broadband circulator or isolator of the strip line or microstrip type
US3886502A (en) * 1974-08-06 1975-05-27 Ryt Ind Broad band field displacement isolator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764902U (en) * 1980-10-01 1982-04-17
JPS57135102U (en) * 1981-02-19 1982-08-23
JPS58144904U (en) * 1982-03-23 1983-09-29 日本電気株式会社 microwave integrated circuit isolator
US5611878A (en) * 1994-04-01 1997-03-18 Tdk Corporation Method of manufacturing microwave circulator

Also Published As

Publication number Publication date
FR2445038A1 (en) 1980-07-18
GB2040593A (en) 1980-08-28

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