EP2438645A1 - Coupleur vers avant à conducteurs plats - Google Patents

Coupleur vers avant à conducteurs plats

Info

Publication number
EP2438645A1
EP2438645A1 EP10722603A EP10722603A EP2438645A1 EP 2438645 A1 EP2438645 A1 EP 2438645A1 EP 10722603 A EP10722603 A EP 10722603A EP 10722603 A EP10722603 A EP 10722603A EP 2438645 A1 EP2438645 A1 EP 2438645A1
Authority
EP
European Patent Office
Prior art keywords
line
dielectric
coupler according
grooves
lines
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.)
Granted
Application number
EP10722603A
Other languages
German (de)
English (en)
Other versions
EP2438645B1 (fr
Inventor
Ralf JÜNEMANN
Alexander Bayer
Michael Freissl
Christian Evers
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 EP2438645A1 publication Critical patent/EP2438645A1/fr
Application granted granted Critical
Publication of EP2438645B1 publication Critical patent/EP2438645B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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

Definitions

  • the invention relates to a coupler, in particular a forward coupler.
  • Electronic measuring devices for the Mirowellentechnik usually have to be designed very broadband to cover all possible applications of customers.
  • the lower frequency limit is then z. B. at 10 MHz and an upper frequency limit z. At 60GHz.
  • the generation and processing of such a frequency range is split internally into several meaningful subareas.
  • the sections must be combined with each other at the front socket. This can be done in a variety of ways. From the standpoint of the lowest possible level losses, 3dB feedforward couplers have proven to be the best solution.
  • US 5,055,807 Bl shows such a forward coupler.
  • the disadvantage here, however, is that the forward coupler shown causes a high production cost and, moreover, a connection of this coupler to other circuits is difficult.
  • the invention is based on the object to provide a coupler, which allows a low production cost with ease of connection to other circuit elements.
  • a coupler according to the invention has a first line and a second line, each with two
  • the cables run in close proximity and are coupled.
  • a first connection of the first line and a first connection of the second line are in close proximity.
  • a second connection of the first line and a second connection of the second line are in close proximity.
  • a signal, which is fed to the first terminal of the first line is distributed to the second terminal of the first line and the second terminal of the second line, in particular at the design frequency to substantially equal parts.
  • the first terminal of the first line and the first terminal of the second line are largely isolated from each other.
  • the first line and the second line are strip conductors. So only a small production cost is necessary. Furthermore, this results in a simple connection to other circuit elements.
  • the band conductors are preferably guided by a dielectric whose special shape allows optimum adjustment of the characteristic properties of the DC and push-pull wave. A high mechanical stability is achieved.
  • the dielectric preferably has first grooves on opposite sides.
  • the strip lines are preferably guided in the first grooves. This achieves a further increase in mechanical stability. Furthermore, very precisely defined and thus easily calculated electromagnetic properties are achieved.
  • the first line and the second line outside the first grooves each have a greater width than inside the grooves.
  • the dielectric has recesses at entry points of the lines into the first grooves.
  • the coupler preferably has a housing, wherein the dielectric is preferably fastened between a first housing part and a second housing part by clamping.
  • the second grooves preferably run parallel to the first grooves. Thus, a low production cost is achieved.
  • the dielectric preferably generates by its shaping different dielectric constants for the DC and push-pull wave.
  • preference is given to the resulting difference between the phase velocity the DC and push-pull wave reaches the desired behavior of the coupler.
  • Push-pull wave This achieves reliable isolation of the terminals adjacent one end of the coupler.
  • the lines are advantageously connected at each of their terminals, each with a supply line.
  • a supply line of the first line and the second line preferably have a bend perpendicular to the course of the respective line.
  • the bend of one of the leads is preferably on the side of the first terminals.
  • the bend of the other lead is preferably on the side of the second terminals. A coupling of the leads is thus avoided.
  • the lines are alternatively connected at each of their connections, each with a supply line. All
  • Supply lines of the first line and / or the second line alternatively have a bend perpendicular to the course of the respective line. A coupling of the leads is thus avoided.
  • the dielectric preferably has recesses at entry points of the lines into the first grooves.
  • Fig. 1 is a schematic representation of the coupler according to the invention.
  • Fig. 3 shows a preferred embodiment of the coupler according to the invention.
  • Fig. 4 is a section through the preferred
  • FIGS. 1 to 4 By means of FIGS. 1 to 4, the construction and operation of various forms of the coupler according to the invention is shown. Identical elements have not been repeatedly shown and described in similar figures.
  • Fig. 1 shows a schematic representation of the coupler according to the invention.
  • a first line 1 has the connections Tl and T2.
  • a second line 2 has the connections T4 and T3.
  • the first line and the second line are coupled to each other.
  • the lines 1, 2 have a length L.
  • Between the lines 1, 2 is a dielectric, which is not shown here, arranged.
  • the dielectric has in connection with the surrounding air due to the field distribution over a characteristic impedance Z e for the common mode wave and a characteristic impedance Z 0 for the push-pull shaft.
  • the dielectric also has in Connection with the surrounding air over an effective dielectric constant ⁇ e for the common mode wave and an effective dielectric constant ⁇ o for the push-pull wave.
  • the lines 1, 2 are band conductors.
  • the coupler according to the invention is at feeding a signal at the gate Tl a uniform distribution of power to the gates T2 and T3 at the same time
  • the effective dielectric constant must satisfy the condition ⁇ e ⁇ ⁇ o .
  • the length L is to be chosen so that, in particular for the desired design frequency, ie the frequency at which the coupler a fed to port 1 signal to substantially equal parts distributed to the gates 2 and 3, the phase difference between the DC and
  • Two lines 14, 15 are designed as a strip conductor and guided in grooves of a dielectric 16.
  • the lines 14, 15 run along the surface of the dielectric 16.
  • the lines 14, 15 preferably extend largely parallel.
  • the line 14 has the leads 10, 11.
  • the line 15 has the leads 12, 13.
  • the lead 10 is designed angled at 90 ° in order to prevent a coupling between the supply line 10 and the supply line 12.
  • the supply line 13 is also 90 ° designed angled to prevent a coupling between the supply line 11 and the supply line 13.
  • a preferred embodiment of the coupler according to the invention is shown.
  • the lines 22, 23 correspond to the lines 15, 14, of FIG. 2.
  • the line 22 is not visible on the back of the dielectric 19 corresponding to the line 23.
  • the supply line 20 of the line 22 is currently running.
  • the supply line 21 of the line 23 is executed angled at 90 °.
  • the lines 22, 23 extend in grooves 28, 29 of the dielectric 19.
  • the grooves 28, 29 are made slightly wider than the lines 22, 23.
  • the depth of the grooves 28, 29 preferably corresponds largely to the thickness of the lines 22, 23rd ,
  • the leads 20, 21 are designed to achieve the usual in metrology characteristic impedance of 50 ohms wider than the lines 22, 23.
  • the dielectric 19 then at the entry point of the supply line 21 recesses 24, 25.
  • the recesses 24, 25 in the dielectric 19 produce an inductance, whereby a compensation of the resulting by the jump 26, 27 in the line width capacity is achieved.
  • Corresponding recesses in the dielectric are used at the interface between the feed line 20 and the line 22, but are not shown here for the sake of clarity.
  • Fig. 4 shows a section through the preferred embodiment of the coupler according to the invention.
  • a sectional view through the dielectric 43 is shown.
  • the dielectric 43 has first Grooves 44, 45 on. In the first grooves 44, 45 extend the lines 39, 40.
  • the grooves 44, 45 are made slightly wider than the lines 39, 40.
  • the lines 39, 40 are preferably fixed by gluing or clamping in the grooves 44, 45.
  • the dielectric 43 also has second grooves 37, 38. In these grooves 37, 38 no lines are performed. That is, there is only the ambient air in the second grooves 37, 38th
  • the housing 30 consists of at least two housing parts
  • the dielectric 43 is fixed by clamping or gluing between the two housing parts 31, 32.
  • the dielectric 43 further comprises webs 33, 34, 35, 36.
  • the two housing parts are in each case with two webs 33, 34, 35, 36 in contact.
  • the grooves 37, 38 ensure a reliable contact of the housing parts 31, 32 on the webs 33, 34, 35, 36.
  • the housing 30 is made of a conductive material and preferably connected to ground.
  • the housing 30 thus forms the counter electrode to the lines 39, 40th
  • the invention is not limited to the illustrated embodiment.
  • a dielectric for example, a wide variety of plastics that meet the conditions mentioned, e.g. Polystyrene, are used. All features described above or features shown in the figures can be combined with each other in any advantageous manner within the scope of the invention.

Landscapes

  • Near-Field Transmission Systems (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Waveguides (AREA)

Abstract

L'invention concerne un coupleur qui dispose d'un premier conducteur (22) et d'un deuxième conducteur (23) pourvus respectivement de deux raccordements. Les conducteurs (22, 23) sont de manière spatialement proche et sont couplés. Un premier raccordement du premier conducteur (22) et un premier raccordement du deuxième conducteur (23) sont spatialement proches. Un deuxième raccordement du premier conducteur (22) et un deuxième raccordement du deuxième conducteur (23) sont spatialement proches. Un signal n'est pas envoyé du premier raccordement du premier conducteur (22) au premier raccordement du deuxième conducteur (23) ou uniquement de manière très amortie. Le signal se répartit, notamment à la fréquence théorique, en parties largement égales sur le deuxième raccordement du premier conducteur (22) et le deuxième raccordement du premier conducteur (23). Le premier conducteur (22) et le deuxième conducteur (23) sont, selon l'invention, des conducteurs plats.
EP10722603.7A 2009-06-04 2010-05-14 Coupleur vers avant à conducteurs plats Active EP2438645B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009023873 2009-06-04
DE102009048148A DE102009048148A1 (de) 2009-06-04 2009-10-02 Vorwärtskoppler mit Bandleitern
PCT/EP2010/002960 WO2010139392A1 (fr) 2009-06-04 2010-05-14 Coupleur vers avant à conducteurs plats

Publications (2)

Publication Number Publication Date
EP2438645A1 true EP2438645A1 (fr) 2012-04-11
EP2438645B1 EP2438645B1 (fr) 2014-10-22

Family

ID=43049409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722603.7A Active EP2438645B1 (fr) 2009-06-04 2010-05-14 Coupleur vers avant à conducteurs plats

Country Status (4)

Country Link
US (1) US8779871B2 (fr)
EP (1) EP2438645B1 (fr)
DE (1) DE102009048148A1 (fr)
WO (1) WO2010139392A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2857722B1 (fr) * 2012-08-29 2018-11-28 Eagle Industry Co., Ltd. Garniture mécanique
US9184484B2 (en) * 2012-10-31 2015-11-10 Keysight Technologies, Inc. Forward coupled directional coupler

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575674A (en) * 1969-05-09 1971-04-20 Microwave Ass Microstrip iris directional coupler
US4139827A (en) * 1977-02-16 1979-02-13 Krytar High directivity TEM mode strip line coupler and method of making same
US4737740A (en) * 1983-05-26 1988-04-12 The United States Of America As Represented By The Secretary Of The Navy Discontinuous-taper directional coupler
US5055807A (en) * 1989-01-09 1991-10-08 Wiltron Company Method and apparatus for multiplexing broad band high frequency signals for use in network analyzers
US5073761A (en) * 1990-06-05 1991-12-17 Westinghouse Electric Corp. Non-contacting radio frequency coupler connector
DE4118399C1 (en) 1991-06-05 1992-11-12 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De Directional coupler with high directional damping - places two wave guides in parallel but offset so that distance between them steadily increases from one end to other, length being smaller than quarter of working wavelength at band mean frequency
US6822532B2 (en) * 2002-07-29 2004-11-23 Sage Laboratories, Inc. Suspended-stripline hybrid coupler
DE10316047B4 (de) * 2003-04-08 2006-11-30 Rohde & Schwarz Gmbh & Co. Kg Richtkoppler in koplanarer Wellenleitertechnik
JP4197352B2 (ja) 2003-12-30 2008-12-17 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 幅の広い結合間隔を伴う、ストリップ導体技術における方向性結合器
EP2045869A1 (fr) 2007-10-02 2009-04-08 Rohde & Schwarz GmbH & Co. KG Coupleur directif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010139392A1 *

Also Published As

Publication number Publication date
US8779871B2 (en) 2014-07-15
WO2010139392A1 (fr) 2010-12-09
US20120068786A1 (en) 2012-03-22
DE102009048148A1 (de) 2010-12-09
EP2438645B1 (fr) 2014-10-22

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