EP0298434A3 - Thin-film quadrature coupler - Google Patents

Thin-film quadrature coupler Download PDF

Info

Publication number
EP0298434A3
EP0298434A3 EP88110740A EP88110740A EP0298434A3 EP 0298434 A3 EP0298434 A3 EP 0298434A3 EP 88110740 A EP88110740 A EP 88110740A EP 88110740 A EP88110740 A EP 88110740A EP 0298434 A3 EP0298434 A3 EP 0298434A3
Authority
EP
European Patent Office
Prior art keywords
thin
coupler
quadrature coupler
film
phase
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.)
Ceased
Application number
EP88110740A
Other languages
German (de)
French (fr)
Other versions
EP0298434A2 (en
Inventor
Siegfried Dipl.-Ing. Sedlmair
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 AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of EP0298434A2 publication Critical patent/EP0298434A2/en
Publication of EP0298434A3 publication Critical patent/EP0298434A3/en
Ceased 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
    • H01P5/186—Lange couplers

Landscapes

  • Networks Using Active Elements (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Non-Reversible Transmitting Devices (AREA)

Abstract

Die Erfindung bezieht sich auf einen 90°-Koppler, insbesondere 3dB-Interdigitalkoppler in Dünnschichttechnik, bei dem auf einem dielektrischen Substrat (S) mehrere gekoppelte Streifenleitungen (1,2,3,4) mit eng benachbartem Verlauf zueinander aufgebracht sind. Hierbei treten bei tiefen Frequenzen als Folge der Lei­ tungsverluste Abweichungen von der 90°-Phase auf. The invention relates to a 90 ° coupler, in particular 3dB interdigital coupler in thin-film technology, in which on a dielectric substrate (S) several coupled strip lines (1,2,3,4) applied with a closely adjacent course to each other are. Here occur at low frequencies as a result of Lei deviations from the 90 ° phase.

Zur Gewährleistung einer Phasendifferenz von 90° ist erfindungs­ gemäß vorgesehen, daß zwischen den Koppelleitern (1,2,3,4) etwa in der Mitte der Koppelstrecke ein ohmscher Widerstand (R) ein­ gefügt ist. To ensure a phase difference of 90 ° is fiction in accordance with that between the coupling conductors (1,2,3,4) an ohmic resistor (R) enters the middle of the coupling path is joined.

EP88110740A 1987-07-08 1988-07-05 Thin-film quadrature coupler Ceased EP0298434A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3722559 1987-07-08
DE3722559 1987-07-08

Publications (2)

Publication Number Publication Date
EP0298434A2 EP0298434A2 (en) 1989-01-11
EP0298434A3 true EP0298434A3 (en) 1990-05-02

Family

ID=6331144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110740A Ceased EP0298434A3 (en) 1987-07-08 1988-07-05 Thin-film quadrature coupler

Country Status (1)

Country Link
EP (1) EP0298434A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08162812A (en) * 1994-12-07 1996-06-21 Fujitsu Ltd High frequency coupler
DE19915246A1 (en) 1999-04-03 2000-10-05 Philips Corp Intellectual Pty Thin film broadband coupler e.g. for mobile telephone, has carrier substrate and two strip lines
CN115101911B (en) * 2022-08-25 2022-11-22 中国电子科技集团公司第二十九研究所 Ultra-wideband high-linearity miniaturized bidirectional coupling circuit chip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001079A1 (en) * 1979-10-15 1981-04-16 Motorola Inc Thin film structure for ceramic substrates
EP0198526A2 (en) * 1985-04-02 1986-10-22 Siemens Telecomunicazioni S.P.A. Thin film power coupler
EP0201409A1 (en) * 1985-04-26 1986-12-17 ETAT FRANCAIS représenté par le Ministre des PTT (Centre National d'Etudes des Télécommunications) Broad-band directional coupler for a microstrip line

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662402A (en) * 1979-10-26 1981-05-28 Fujitsu Ltd Directional coupler
JPS5775003A (en) * 1980-10-29 1982-05-11 Fujitsu Ltd Hybrid coupler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001079A1 (en) * 1979-10-15 1981-04-16 Motorola Inc Thin film structure for ceramic substrates
EP0198526A2 (en) * 1985-04-02 1986-10-22 Siemens Telecomunicazioni S.P.A. Thin film power coupler
EP0201409A1 (en) * 1985-04-26 1986-12-17 ETAT FRANCAIS représenté par le Ministre des PTT (Centre National d'Etudes des Télécommunications) Broad-band directional coupler for a microstrip line

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
IEE PROC., Band 129, Nr. 3, Teil H, Juni 1982, Seiten 94-98, Old Woking, Surrey, GB; A. JENKINS et al.: "Resistive 4-port directional coupler", Seiten 94-98 *
MICROWAVE JOURNAL, Band 29, Nr. 11, November 1986, Seiten 147-151, Dehdam, Massachusetts, US; W. YAU et al.: "An N-way broadband planar power combiner/divider" *
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 125 (E-69)[797], 12. August 1981; & JP-A-56 62 402 (FUJITSU K.K.) 28-05-1981 *
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 151 (E-124)[1029], 11. August 1982; & JP-A-57 75 003 (FUJITSU K.K.) 11-05-1982 *

Also Published As

Publication number Publication date
EP0298434A2 (en) 1989-01-11

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