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JPS54122137A - Directional coupler - Google Patents

Directional coupler

Info

Publication number
JPS54122137A
JPS54122137A JP2951478A JP2951478A JPS54122137A JP S54122137 A JPS54122137 A JP S54122137A JP 2951478 A JP2951478 A JP 2951478A JP 2951478 A JP2951478 A JP 2951478A JP S54122137 A JPS54122137 A JP S54122137A
Authority
JP
Japan
Prior art keywords
coupling
air layer
conductor
lines
directional coupler
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
JP2951478A
Other languages
Japanese (ja)
Other versions
JPS6047762B2 (en
Inventor
Teruo Furuya
Makoto Matsunaga
Tetsushi Mizobuchi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2951478A priority Critical patent/JPS6047762B2/en
Publication of JPS54122137A publication Critical patent/JPS54122137A/en
Publication of JPS6047762B2 publication Critical patent/JPS6047762B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To make possible dense coupling with good directivity by providing an air layer and a coupling auxiliary conductor between dielectric substate and earth conductor in the directional coupler formed with main lines and coupling lines on one surface of the dielectric substrate and the earth conductor on the other surface. CONSTITUTION:Internal conductors which become main lenes 2 and coupling lines 3 are formed on one surface of a dielectric substrate 1 and an earth conductor 4 is formed via air layer 7 on the other surface. Further, a coupling auxiliary conductor 6 is provided at the boundary face of the dielectric substrate and air layer 7 under the coupling line part 7. Then, the coupling auxiliary conductor 6 mainly acts on the odd modes of the coupling line 3 and the air layer 7 acts mainly on the even modes of the coupling lines 3. Then, if the size of the coupling auxiliray conductor 6 and the thickness, etc. of the air layer 7 are suitably selected, the directional coupler of good directivity and large degrees of coupling may be realized.
JP2951478A 1978-03-15 1978-03-15 directional coupler Expired JPS6047762B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2951478A JPS6047762B2 (en) 1978-03-15 1978-03-15 directional coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2951478A JPS6047762B2 (en) 1978-03-15 1978-03-15 directional coupler

Publications (2)

Publication Number Publication Date
JPS54122137A true JPS54122137A (en) 1979-09-21
JPS6047762B2 JPS6047762B2 (en) 1985-10-23

Family

ID=12278196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2951478A Expired JPS6047762B2 (en) 1978-03-15 1978-03-15 directional coupler

Country Status (1)

Country Link
JP (1) JPS6047762B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120601A (en) * 1983-12-02 1985-06-28 Nippon Telegr & Teleph Corp <Ntt> Coupling line
JPH03236608A (en) * 1990-02-14 1991-10-22 Tokimec Inc Directional coupler and microwave integrated circuit
JPH03296304A (en) * 1990-04-13 1991-12-27 Tokimec Inc Directional coupler
JP2011023785A (en) * 2009-07-13 2011-02-03 Murata Mfg Co Ltd Directional coupler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120601A (en) * 1983-12-02 1985-06-28 Nippon Telegr & Teleph Corp <Ntt> Coupling line
JPH03236608A (en) * 1990-02-14 1991-10-22 Tokimec Inc Directional coupler and microwave integrated circuit
JPH03296304A (en) * 1990-04-13 1991-12-27 Tokimec Inc Directional coupler
JP2011023785A (en) * 2009-07-13 2011-02-03 Murata Mfg Co Ltd Directional coupler

Also Published As

Publication number Publication date
JPS6047762B2 (en) 1985-10-23

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