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 PDFInfo
- 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- Withdrawn
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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2050889 | 1989-05-15 | ||
IT8920508A IT1229726B (en) | 1989-05-15 | 1989-05-15 | DIRECTIONAL 3 DB COUPLER, 90 DEGREES, ONE OCTAVE, MADE IN MICROSTRIP AND SLOTLINE. |
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EP19900201164 Withdrawn EP0398419A3 (en) | 1989-05-15 | 1990-05-08 | One-octave 90 degrees 3db directional coupler embodied in microstrip and slotline |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)
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)
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 |
-
1989
- 1989-05-15 IT IT8920508A patent/IT1229726B/en active
-
1990
- 1990-05-08 EP EP19900201164 patent/EP0398419A3/en not_active Withdrawn
- 1990-05-11 NO NO90902108A patent/NO902108L/en unknown
- 1990-05-11 AU AU54986/90A patent/AU5498690A/en not_active Abandoned
- 1990-05-15 ZA ZA903701A patent/ZA903701B/en unknown
Patent Citations (2)
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)
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 |
---|---|
NO902108D0 (en) | 1990-05-11 |
NO902108L (en) | 1990-11-16 |
EP0398419A2 (en) | 1990-11-22 |
IT1229726B (en) | 1991-09-07 |
IT8920508A0 (en) | 1989-05-15 |
AU5498690A (en) | 1990-11-15 |
ZA903701B (en) | 1991-02-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
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PUAL | Search report despatched |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920609 |