EP0398419A3 - One-octave 90 degrees 3db directional coupler embodied in microstrip and slotline - Google Patents

One-octave 90 degrees 3db directional coupler embodied in microstrip and slotline Download PDF

Info

Publication number
EP0398419A3
EP0398419A3 EP19900201164 EP90201164A EP0398419A3 EP 0398419 A3 EP0398419 A3 EP 0398419A3 EP 19900201164 EP19900201164 EP 19900201164 EP 90201164 A EP90201164 A EP 90201164A EP 0398419 A3 EP0398419 A3 EP 0398419A3
Authority
EP
European Patent Office
Prior art keywords
microstrip
slotline
directional coupler
degrees
octave
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.)
Withdrawn
Application number
EP19900201164
Other languages
German (de)
French (fr)
Other versions
EP0398419A2 (en
Inventor
Carlo Buoli
Nicolangelo Palermo
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.)
Siemens Telecomunicazioni SpA
Original Assignee
Siemens Telecomunicazioni SpA
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 Siemens Telecomunicazioni SpA filed Critical Siemens Telecomunicazioni SpA
Publication of EP0398419A2 publication Critical patent/EP0398419A2/en
Publication of EP0398419A3 publication Critical patent/EP0398419A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
    • H01P5/185—Edge coupled lines

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A 3dB 90 degrees directional coupler having a one-octave band extension for microwave circuits is described. It consists of two coupled lines (2,3) embodied in microstrip form and a slotline loop (4,5) made in the ground plane (6) of the microstrip lines.
EP19900201164 1989-05-15 1990-05-08 One-octave 90 degrees 3db directional coupler embodied in microstrip and slotline Withdrawn EP0398419A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8920508A IT1229726B (en) 1989-05-15 1989-05-15 DIRECTIONAL 3 DB COUPLER, 90 DEGREES, ONE OCTAVE, MADE IN MICROSTRIP AND SLOTLINE.
IT2050889 1989-05-15

Publications (2)

Publication Number Publication Date
EP0398419A2 EP0398419A2 (en) 1990-11-22
EP0398419A3 true EP0398419A3 (en) 1992-01-08

Family

ID=11167995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900201164 Withdrawn EP0398419A3 (en) 1989-05-15 1990-05-08 One-octave 90 degrees 3db directional coupler embodied in microstrip and slotline

Country Status (5)

Country Link
EP (1) EP0398419A3 (en)
AU (1) AU5498690A (en)
IT (1) IT1229726B (en)
NO (1) NO902108L (en)
ZA (1) ZA903701B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4983933A (en) * 1989-10-05 1991-01-08 Sedco Systems Inc. Waveguide-to-stripline directional coupler
IT1251221B (en) * 1991-07-11 1995-05-04 Sits Soc It Telecom Siemens HYBRID AND MICROWAVE DIRECTIONAL COUPLER WITH CONCENTRATED CONSTANTS WITH SQUARE OUTPUTS.
US5304959A (en) * 1992-10-16 1994-04-19 Spectrian, Inc. Planar microstrip balun
JP2651336B2 (en) * 1993-06-07 1997-09-10 株式会社エイ・ティ・アール光電波通信研究所 Directional coupler
CN118213732A (en) * 2022-12-15 2024-06-18 合肥华凌股份有限公司 Microstrip line coupler, radio frequency module and radio frequency thawing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907837A1 (en) * 1978-03-16 1979-09-27 Robotron Veb K STRIP LINE COUPLER LOW COUPLING ATTENUATION
SU1195403A1 (en) * 1984-06-28 1985-11-30 Предприятие П/Я Г-4273 Directional coupler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907837A1 (en) * 1978-03-16 1979-09-27 Robotron Veb K STRIP LINE COUPLER LOW COUPLING ATTENUATION
SU1195403A1 (en) * 1984-06-28 1985-11-30 Предприятие П/Я Г-4273 Directional coupler

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
1986 IEEE-MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM- DIGEST; June 2-4,1986, Maryland, US, IEEE, New York, US, 1986; L.DONGTIEN: "New types of 3-dB directional couplers of microstrip transmission lines" pages 265-266 *
ELECTRONICS LETTERS. vol. 19, no. 22, 27 October 1983, STEVENAGE, GB, pages 911 - 912; K.SHIBATA ET AL.: 'Three-line microstrip directional coupler with dielectric overlay' *
MICROWAVE JOURNAL. vol. 29, no. 4, April 1986, DEDHAM, US, pages 197 - 201; B.PETROVIC: 'A new type of microstrip directional coupler' *
SIEMENS FORSCHUNGS- UND ENTWICKLUNGSBERICHTE. vol. 10, no. 5, May 1981, BERLIN, DE, pages 271 - 279; J.SIEGL ET AL.: 'Calculated and measured parameters of interdigitated microstrip couplers' *
SOVIET INVENTIONS ILLUSTRATED, Section EI, Week 8627, 18 July 1986 Derwent Publications Ltd., London, GB; Class W, Page 13, AN 86-175479/27; & SU-A-1 195 403 (ZHURAVSKII) 30 November 1985 *
TRANSACTIONS OF THE INSTITUTE OF ELECTRONICS ANDCOMMUNICATION vol. E60, no. 4, April 1977, TOKYO, JP, pages 206 - 207; M.AIKAWA: 'Microstrip line directional coupler with tight coupling and high directivity' *

Also Published As

Publication number Publication date
AU5498690A (en) 1990-11-15
IT1229726B (en) 1991-09-07
NO902108D0 (en) 1990-05-11
NO902108L (en) 1990-11-16
EP0398419A2 (en) 1990-11-22
IT8920508A0 (en) 1989-05-15
ZA903701B (en) 1991-02-27

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