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EP1665451B1 - Coupleur directif en circuit coaxial - Google Patents

Coupleur directif en circuit coaxial Download PDF

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Publication number
EP1665451B1
EP1665451B1 EP04790920A EP04790920A EP1665451B1 EP 1665451 B1 EP1665451 B1 EP 1665451B1 EP 04790920 A EP04790920 A EP 04790920A EP 04790920 A EP04790920 A EP 04790920A EP 1665451 B1 EP1665451 B1 EP 1665451B1
Authority
EP
European Patent Office
Prior art keywords
connection
coaxial line
directional coupler
decoupling
network
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.)
Expired - Lifetime
Application number
EP04790920A
Other languages
German (de)
English (en)
Other versions
EP1665451A1 (fr
Inventor
Roland Ahlers
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.)
Rohde and Schwarz GmbH and Co KG
Original Assignee
Rohde and Schwarz GmbH and Co KG
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 Rohde and Schwarz GmbH and Co KG filed Critical Rohde and Schwarz GmbH and Co KG
Publication of EP1665451A1 publication Critical patent/EP1665451A1/fr
Application granted granted Critical
Publication of EP1665451B1 publication Critical patent/EP1665451B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01P5/183—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers at least one of the guides being a coaxial line

Definitions

  • the invention relates to a directional coupler in coaxial line technology.
  • Directional couplers are used in high-frequency technology for the separate measurement of back and forth wave in a line.
  • directional couplers z. B. used to measure the standing wave ratio.
  • a directional coupler is used in coaxial line technology.
  • Such a directional coupler in coaxial line technology is z. B. in the US 5,926,076 described.
  • the directional coupler consists of a coaxial line with an inner conductor, a hollow cylindrical dielectric guided around the inner conductor and a hollow cylindrical outer conductor applied to the jacket of the hollow cylindrical dielectric and a printed circuit board on which essentially the two coupling units of the directional coupler are applied.
  • Coaxial line and circuit board with decoupling units are arranged at an adjustable distance from each other in a housing.
  • a disadvantage of this arrangement is the relatively high cost of a mechanical and electrical connection between the coaxial line and the two coupling units and their connections via a common spacing, mounting and storage in a common housing.
  • the targeted and efficient removal of resulting heat from the directional coupler circuit by means of resistors and heat dissipation rails is designed comparatively expensive.
  • US 5 148 132 discloses a coupler with a coaxial line having a straight outer lead and an inner lead with bent inner lead terminals.
  • the invention is therefore an object of the invention to provide a directional coupler in coaxial line technology, in which the mechanical and electrical connection between the coaxial line and the terminals of Directional coupler, in particular the Auskoppelan Wegn, is realized with minimal additional equipment expense.
  • the object of the invention is achieved by a directional coupler in coaxial line technology with the features of claim 1.
  • the electrical connection between the inner and outer conductors of the coaxial line and the individual terminals of the directional coupler takes place at the input and output of the coaxial line via a respective resistor network.
  • the mechanical connection between the coaxial line and the individual terminals of the directional coupler, which are positioned on a planar printed circuit board, is realized in that the coaxial line z.
  • Such a realized electrical and mechanical connection between a coaxial line and the terminals of a directional coupler represents a cost-minimized in terms of material and manufacturing cost solution.
  • the planar printed circuit board can be implemented in SMD technology.
  • the arrangement of the resistors of the two resistor networks, at the two ends of the coaxial line the shield and thus lead the outer conductor of the coaxial line to ground potential, are crucial for the directional coupler characteristic and can be arranged so relatively flexible.
  • the directional coupler according to the invention in coaxial line technology is described in its embodiment below with reference to FIG. 1 to FIG. 3.
  • the directional coupler according to the invention in coaxial line technology according to FIG. 1 essentially comprises a coaxial line 1 which consists of an outer conductor 3 separated from an inner conductor 2 and via a dielectric.
  • the coaxial line 1 is surrounded on its outer jacket by a plurality of series ferrite core rings 4.
  • the coaxial line 1 is connected at its first pad 8 to the first terminal 5 and the first decoupling terminal 6 of the directional coupler via a first resistor network 7 and at its second pad 9 to the second terminal 10 and the second decoupling terminal 11 via a connected to the first resistor network 7 symmetrical second resistor network 12.
  • the first resistor network 7 consists of a series connection of a resistor R 71 and R 72 in the connecting line 73 between the first terminal 5 and the first decoupling terminal 6 and a resistor R 74 in the connecting line 75 between the outer conductor 3 of the coaxial line 1 and the first decoupling terminal. 6 and a direct connection line 76 between the inner conductor 2 of the coaxial line 1 and the first terminal. 5
  • the second resistor network zwerk 12 is symmetrical to the first resistor network 7 of a series connection of a resistor R 121 and R 122 in the connecting line 123 between the second terminal 10 and the second decoupling terminal 11 and a resistor R 124 in the connecting line 125 between the outer conductor 3 of the coaxial line 1 and the second decoupling connection 11 and a direct connection line 126 between the inner conductor 2 of the coaxial line 1 and the second terminal 10.
  • the outer conductor 3 is guided at the first pad 8 of the coaxial line 1 with a third resistor network 13 to ground potential.
  • the third resistor network 13 consists of a parallel connection of a plurality of low-resistance resistors R 131 , R 132 , R 133 ,... R 13 (n-1) , R 13n .
  • the outer conductor 3 on the second pad 9 of the coaxial line 1 is connected to a fourth resistor network 14, which is designed completely symmetrical to the third resistor network 13, to ground potential.
  • the fourth resistor network 14 accordingly consists of a parallel connection of a plurality of low-resistance resistors R 141 , R 142 , R 143 ,..., R 14 (n-1) , R 14n ⁇
  • the resistors R 71 , R 72 and R 74 of the first resistor network 7 and the resistors R 121 , R 122 R 124 of the second resistor network 12 are designed to have higher resistance than the low-resistance resistors R 131 , ..., R 13n of the third resistor network 13 and the low-resistance resistors R 141 , ...., R 14n of the fourth resistor network 14.
  • Fig. 2 and Fig. 3 is also the conical arrangement of the resistors R 131 , ...., R 13n of the third resistor network 13 and the resistors R 141 , ..., R 14n of the fourth resistor network 14 between the outer conductor 3 of the coaxial line 1 and the planar circuit board 15 can be seen, the first and second terminals 5 and 10 and the first and second decoupling connection 6 and 11 further components, the z. B. are arranged in SMD technology contains. All the resistors R 131 ,..., R 13n and R 141 ,..., R 14n are, as can be seen from FIG. 2 or FIG. 3, soldered onto the printed circuit board.
  • FIG. 2 also shows the connecting line 76 or 126 from the inner conductor 2 of the coaxial line to the first terminal 5 and to the second terminal 10 of the directional coupler and also the resistor R 74 of the first resistor network 7 or the resistor R 124, which is also implemented using conventional technology of the second resistor network 12, both in the conical arrangement of the resistors R 131 , ..., R 13 n of the third resistor network 13 and the Resistors R 141 , ..., R 14n of the fourth resistor network 14 are queued to recognize.
  • R 13n and R 141 , ..., R 14n and the spatial arrangement in particular of the resistors R 74 , R 124 , R 131 , ..., R 13n and R 141 , ..., R 14n set the directivity and coupling damping of Directional coupler.
  • parameterization and spatial arrangement of the resistors can be ensured that at the first decoupling connection 6, a constructive positive superposition is coupled out of the waves between the first terminal 5 and the first pad 8 of the coaxial line 1 and returning waves, and on second decoupling terminal 11 is a mutual extinction of the two waves, which are coupled out of the between the second terminal 10 and the second pad 9 of the coaxial line 1 back and forth waves, is realized.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Claims (8)

  1. Coupleur directif avec
    une première connexion (5) pour l'entrée ou la sortie d'une onde et une première connexion de découplage (6) pour le découplage d'une onde couplée, qui toutes deux sont raccordées par l'intermédiaire d'un premier réseau (7) au conducteur interne (2) et au conducteur externe (3) d'un circuit coaxial (3) sur leur première face de connexion (8), et
    une deuxième connexion (10) pour l'amenée ou le départ de l'onde amenée ou émise par la première connexion (5) et une deuxième connexion de découplage (11) pour découpler une onde couplée, qui toutes deux sont raccordées par l'intermédiaire d'un deuxième réseau (12) au conducteur interne (2) et au conducteur externe (3) du circuit coaxial (1) sur leur seconde face de connexion (9), d'une plaquette planaire de circuits imprimés qui contient la première connexion de découplage (6) et/ou la seconde connexion de découplage (11),
    caractérisé en ce que
    le circuit coaxial (1) est courbé de telle sorte que ses première et seconde faces de connexion (8, 9) sont orientées sensiblement parallèlement à la plaquette planaire de circuits imprimés (15) qui contient la première connexion (5) et/ou la seconde connexion (10).
  2. Coupleur directif selon la revendication 1,
    caractérisé en ce que
    le premier réseau (7) et le deuxième réseau (12) sont chacun un réseau de résistance.
  3. Coupleur directif selon la revendication 1 ou 2,
    caractérisé en ce que
    le conducteur externe (3) du circuit coaxial (1) est mis au potentiel de masse sur la première face de connexion (8) par l'intermédiaire d'un troisième réseau de résistance (13) faiblement ohmique et sur la seconde face de connexion (9) par l'intermédiaire d'un quatrième réseau de résistance faiblement ohmique (14).
  4. Coupleur directif selon l'une des revendications 1 à 3,
    caractérisé en ce que
    le circuit coaxial (1) est en forme de demi-cercle ou en forme de U.
  5. Coupleur directif selon la revendication 4,
    caractérisé en ce que,
    le circuit coaxial en forme de demi-cercle ou en forme de U (1) est raccordé mécaniquement ou électriquement à la plaquette plane de circuits imprimés à son conducteur interne (2) par l'intermédiaire d'un conducteur de liaison (76) et au conducteur externe (3) par l'intermédiaire de résistances disposées en cône (R74,R131,...,R13n) du premier et/ou du troisième réseau de résistances (7,13) et sur la deuxième face de connexion (9) à son conducteur interne (2) par l'intermédiaire d'un conducteur de liaison (126) et à son conducteur externe (3) par les résistances disposées en cône (R124, R141,..., R14n) du deuxième et/ou quatrième réseau de résistances (12,14).
  6. Coupleur directif selon l'une des revendications 1 à 5,
    caractérisé en ce que,
    au moins un anneau de ferrite (4) en un matériau de ferrite entoure le circuit axial (11).
  7. Coupleur directif selon la revendication 6,
    caractérisé en ce que,
    plusieurs anneaux de ferrite juxtaposés (4) entourent le circuit coaxial.
  8. Coupleur directif selon l'une des revendications 1 à 7,
    caractérisé en ce que,
    les résistances (R71, R72, R74, R121, R122, R124, R131, ...., R13n, R141,..., R14n) des réseaux de résistances (7,12,13,14) sont des éléments modulaires soudés en technique SMD sur la plaquette plane de circuits imprimés (15).
EP04790920A 2003-11-12 2004-10-27 Coupleur directif en circuit coaxial Expired - Lifetime EP1665451B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10352784A DE10352784A1 (de) 2003-11-12 2003-11-12 Richtkoppler in Koaxialleitungstechnik
PCT/EP2004/012146 WO2005048396A1 (fr) 2003-11-12 2004-10-27 Coupleur directif en circuit coaxial

Publications (2)

Publication Number Publication Date
EP1665451A1 EP1665451A1 (fr) 2006-06-07
EP1665451B1 true EP1665451B1 (fr) 2008-01-23

Family

ID=34585006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04790920A Expired - Lifetime EP1665451B1 (fr) 2003-11-12 2004-10-27 Coupleur directif en circuit coaxial

Country Status (4)

Country Link
US (1) US7884683B2 (fr)
EP (1) EP1665451B1 (fr)
DE (2) DE10352784A1 (fr)
WO (1) WO2005048396A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837893A1 (fr) * 2006-03-25 2007-09-26 HÜTTINGER Elektronik GmbH + Co. KG Dispositif de mesure d'un système plasma HF
DE102009051229A1 (de) * 2009-10-29 2011-05-12 Rohde & Schwarz Gmbh & Co. Kg Hochfrequenz-Signalkombinierer
DE102010009227A1 (de) * 2009-12-23 2011-06-30 Rohde & Schwarz GmbH & Co. KG, 81671 Breitbandrichtkoppler
DE102012211738A1 (de) * 2012-04-02 2013-10-02 Rohde & Schwarz Gmbh & Co. Kg Breitbandrichtkoppler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243704A (en) * 1962-07-23 1966-03-29 Itt Coaxial line reflectometer having a resistance connected between sections of the outer conductor
US3654570A (en) * 1970-08-03 1972-04-04 Calvin J Thomas Coaxial hybrid junction device having impedance matched terminations
US4962359A (en) * 1989-06-29 1990-10-09 Hewlett-Packard Company Dual directional bridge and balun used as reflectometer test set
US5148132A (en) * 1991-01-29 1992-09-15 Sage Laboratories, Inc. Microwave coupler
JPH06177618A (ja) * 1992-12-02 1994-06-24 Murata Mfg Co Ltd 方向性結合器
US5347244A (en) * 1992-12-29 1994-09-13 Canadian Marconi Company Broadband directional coupler using cables
US5927076A (en) * 1996-10-22 1999-07-27 Westinghouse Electric Corporation Multiple venturi ultra-low nox combustor
US7095294B2 (en) * 2004-06-30 2006-08-22 Agilent Technologies, Inc. Directional bridge coupler

Also Published As

Publication number Publication date
WO2005048396A1 (fr) 2005-05-26
DE10352784A1 (de) 2005-06-16
US7884683B2 (en) 2011-02-08
EP1665451A1 (fr) 2006-06-07
DE502004006063D1 (de) 2008-03-13
US20090033436A1 (en) 2009-02-05

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