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WO1997019485A1 - Microwave coupler - Google Patents

Microwave coupler Download PDF

Info

Publication number
WO1997019485A1
WO1997019485A1 PCT/DE1996/002112 DE9602112W WO9719485A1 WO 1997019485 A1 WO1997019485 A1 WO 1997019485A1 DE 9602112 W DE9602112 W DE 9602112W WO 9719485 A1 WO9719485 A1 WO 9719485A1
Authority
WO
WIPO (PCT)
Prior art keywords
port
coupler
coupling
coupling lines
bridges
Prior art date
Application number
PCT/DE1996/002112
Other languages
German (de)
French (fr)
Inventor
Helmut Junghans
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1997019485A1 publication Critical patent/WO1997019485A1/en

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

Definitions

  • the invention relates to a microwave coupler with coupling lines crossing in the area of bridges.
  • a coupler of this type is described, for example, in the article “Monolithic GaAs Interdigitated Cuppiers”, published in IEEE Transactions on Electron Devices, Vol. ED-30 (1983) Jan, No. 1, New York, USA, pages 29 to 32.
  • the invention has for its object to provide a coupler with improved electrical properties compared to known arrangements.
  • the figure shows a coupler with four coupling lines 1 to 4, which are connected to the gates (port) P1 to P4.
  • Port 1 is e.g. the input port, port 2 em coupled port, port 3 a through port and port 4 an isolated port.
  • the signal transmission takes place from port 1 to port 3 via the two parallel coupling lines 1 and 3, which couples with the coupling lines 2 and 4 running parallel to them between port 2 and port 4.
  • the coupling lines 1 and 2 as well as 3 and 4 cross one another over half their length, in that the coupling line 1 is led over a bridge 5 over the coupling line 2 and the coupling line 3 over a bridge 6 over the coupling line 4.
  • Via a further bridge 7, the coupling line 2 bridges the coupling line 3 at port 2 and via a bridge 8 the coupling line 4 is led at port 4 over the crossing coupling line 1.
  • the length of all four cable runs ie the coupling lines
  • the number of bridges in each cable run is also the same, i.e. Each bridge per cable run.
  • the joints of the coupling lines are also the same for all four ports, with regard to the number and the geometric shape.
  • the fact that the four coupling lines are identical results in excellent electrical properties in terms of coupling, phase response, isolation and reflection factor, which cannot be achieved with conventional couplers at high frequencies. In this way, couplers with approximately ideal electrical properties are obtained, which e.g. can be constructed in stripline technology.

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  • Near-Field Transmission Systems (AREA)

Abstract

The invention concerns a coupler comprising four coupling leads of the same length, with the same number of bridges and the same number of points of transition of identical geometrical shape for all the coupling leads.

Description

Beschreibungdescription
MikrowellenkopplerMicrowave coupler
Die Erfindung bezieht sich auf einen Mikrowellenkoppler mit im Bereich von Brücken sich kreuzenden Koppelleitungen.The invention relates to a microwave coupler with coupling lines crossing in the area of bridges.
Em Koppler dieser Art ist beispielsweise beschrieben in dem Aufsatz „Monolithic GaAs Interdigitated Cuppiers", erschienen in IEEE Transactions on Electron Devices, Vol. ED-30 (1983) Jan., No. 1, New York, USA, Seiten 29 bis 32. Hierbei handelt es sich um einen Lange-Koppler. Die einzelnen Leitungszuge des Kopplers sind unterschiedlich lang und weisen auch unterschied- lieh viele Brücken und unterschiedliche Stoßstellen bei den Eingängen (Toren) auf.A coupler of this type is described, for example, in the article “Monolithic GaAs Interdigitated Cuppiers”, published in IEEE Transactions on Electron Devices, Vol. ED-30 (1983) Jan, No. 1, New York, USA, pages 29 to 32. This is a Lange coupler, the individual cables of the coupler are of different lengths and also have different bridges and different joints at the entrances (gates).
Im Bereich von Hoch- und Hochstfrequenzen bedingen unsymmetri¬ sche Stoßstellen und unterschiedliche Leitungslangen bei Lange- Kopplern unzureichende Kopplereigenschaften hinsichtlich Fre¬ quenzgang, Phasengang, Kopplung und Isolation. Dieses Problem wurde im Bereich der Hochstfrequenzen bisher durch Hohlleiter- strukturen gelost oder dadurch, daß man z.B. Systemforderungen an die unzureichenden Kopplereigenschaften anpaßte.In the area of high and very high frequencies, asymmetrical joints and different cable lengths in long couplers cause inadequate coupler properties with regard to frequency response, phase response, coupling and isolation. Up to now, this problem has been solved in the area of high frequencies by waveguide structures or by e.g. Adapted system requirements to the inadequate coupler properties.
Der Erfindung liegt die Aufgabe zugrunde, einen Koppler mit ge¬ genüber bekannten Anordnungen verbesserten elektrischen Eigen¬ schaften zu schaffen.The invention has for its object to provide a coupler with improved electrical properties compared to known arrangements.
Diese Aufgabe wird gemäß der Erfindung gelost mit einem Koppler mit vier Koppelleitungen gleicher Lange und gleicher Anzahl von Brücken sowie gleicher Anzahl von Stoßstellen mit geometrisch gleicher Form bei allen Koppelleitungen. Vorteilhafte Ausgestaltungen und Weiterbildungen des Erfin¬ dungsgegenstandes smd m den Unteranspruchen angegeben.This object is achieved according to the invention with a coupler with four coupling lines of the same length and number of bridges and the same number of joints with the same geometrical shape in all coupling lines. Advantageous refinements and developments of the subject matter of the invention are specified in the subclaims.
Nachstehend wird die Erfindung anhand eines m der Zeichnung dargestellten Ausfuhrungsbeispiels naher erläutert.The invention is explained in more detail below with reference to an exemplary embodiment shown in the drawing.
Die Figur zeigt einen Koppler mit vier Koppelleitungen 1 bis 4, die an die Tore (Port) Pl bis P4 angeschlossen sind. Dabei ist Port 1 z.B. das Eingangsport, Port 2 em gekoppeltes Port, Port 3 ein durchgehendes Port und Port 4 ein isoliertes Port. Die Signalubertragung erfolgt dabei von Port 1 zu Port 3 über die beiden parallelen Koppelleitungen 1 und 3, die mit den parallel zu ihnen verlaufenden Koppelleitungen 2 und 4 zwischen Port 2 und Port 4 verkoppelt smd. Die Koppelleitungen 1 und 2 sowie 3 und 4 kreuzen sich auf der Hälfte ihrer Lange, indem die Kop- pelleitung 1 über eme Brücke 5 über die Koppelleitung 2 und die Koppelleitung 3 über eine Brücke 6 über die Koppelleitung 4 gefuhrt ist. Über eme weitere Brücke 7 überbrückt die Koppel¬ leitung 2 am Port 2 die Koppelleitung 3 und über eine Brücke 8 ist die Koppelleitung 4 am Port 4 über die kreuzende Koppellei¬ tung 1 gefuhrt.The figure shows a coupler with four coupling lines 1 to 4, which are connected to the gates (port) P1 to P4. Port 1 is e.g. the input port, port 2 em coupled port, port 3 a through port and port 4 an isolated port. The signal transmission takes place from port 1 to port 3 via the two parallel coupling lines 1 and 3, which couples with the coupling lines 2 and 4 running parallel to them between port 2 and port 4. The coupling lines 1 and 2 as well as 3 and 4 cross one another over half their length, in that the coupling line 1 is led over a bridge 5 over the coupling line 2 and the coupling line 3 over a bridge 6 over the coupling line 4. Via a further bridge 7, the coupling line 2 bridges the coupling line 3 at port 2 and via a bridge 8 the coupling line 4 is led at port 4 over the crossing coupling line 1.
Bei der erfindungsgemaßen Ausgestaltung des Kopplers ist die Lange aller vier Leitungszuge, also der Koppelleitungen gleich; ebenso ist die Anzahl der Brücken in πedem Leitungszug gleich, d.h. eme Brücke je Leitungszug. Gleich sind auch die Stoßstel¬ len der Koppelleitungen bei allen vier Ports und zwar hinsicht¬ lich der Anzahl und der geometrischen Form. Durch die Gleich¬ heit der vier Koppelleitungen ergeben sich hervorragende elek- tπsche Eigenschaften m Bezug auf Kopplung, Phasengang, Isola¬ tion und Reflexionsfaktor, wie sie bei Hochstfrequenzen mit herkömmlichen Kopplern nicht erreichbar sind. Man erhalt auf diese Weise Koppler mit naherungsweise idealen elektrischen Ei¬ genschaften, die z.B. in Streifenleitungstechnik aufgebaut sein können. In the embodiment of the coupler according to the invention, the length of all four cable runs, ie the coupling lines, is the same; the number of bridges in each cable run is also the same, i.e. Each bridge per cable run. The joints of the coupling lines are also the same for all four ports, with regard to the number and the geometric shape. The fact that the four coupling lines are identical results in excellent electrical properties in terms of coupling, phase response, isolation and reflection factor, which cannot be achieved with conventional couplers at high frequencies. In this way, couplers with approximately ideal electrical properties are obtained, which e.g. can be constructed in stripline technology.

Claims

Patentansprüche claims
1. Mikrowellenkoppler mit im Bereich von Brücken sich kreuzen¬ den Koppelleitungen, gekennzeichnet durch vier Koppelleitungen gleicher Lange und gleicher Anzahl von Brücken sowie gleicher Anzahl von Stoßstellen mit geometrisch gleicher Form bei allen Koppelleitungen.1. Microwave coupler with coupling lines intersecting in the area of bridges, characterized by four coupling lines of the same length and number of bridges and the same number of joints with the same geometrical shape for all coupling lines.
2. Mikrowellenkoppler nach Anspruch 1, dadurch gekennzeichnet, daß m jedem Leitungszug eme die sich kreuzenden Koppelleitun¬ gen überbrückende Brücke angeordnet ist, von denen zwei auf halber Lange der Leitungszuge liegen.2. Microwave coupler according to claim 1, characterized in that m each cable train eme the crossing Koppelleitun¬ gene bridging bridge is arranged, two of which are halfway down the cable trains.
3. Mikrowellenkoppler nach Anspruch 1 oder 2, gekennzeichnet durch die Ausfuhrung m Streifenleitungstechnik. 3. Microwave coupler according to claim 1 or 2, characterized by the design m stripline technology.
PCT/DE1996/002112 1995-11-23 1996-11-06 Microwave coupler WO1997019485A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543839 1995-11-23
DE19543839.6 1995-11-23

Publications (1)

Publication Number Publication Date
WO1997019485A1 true WO1997019485A1 (en) 1997-05-29

Family

ID=7778320

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/002112 WO1997019485A1 (en) 1995-11-23 1996-11-06 Microwave coupler

Country Status (1)

Country Link
WO (1) WO1997019485A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002052675A1 (en) * 2000-12-22 2002-07-04 Allgon Ab Four port hybrid microstrip circuit of lange type

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEN Y HO ET AL: "AN IMPROVED LAYOUT FOR LANGE COUPLERS", MICROWAVE JOURNAL, vol. 35, no. 6, 1 June 1992 (1992-06-01), pages 112, 115, XP000307289 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002052675A1 (en) * 2000-12-22 2002-07-04 Allgon Ab Four port hybrid microstrip circuit of lange type
US6859177B2 (en) 2000-12-22 2005-02-22 Allgon Ab Four port hybrid microstrip circuit of Lange type

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