EP2052434A1 - Richtkoppler - Google Patents
RichtkopplerInfo
- Publication number
- EP2052434A1 EP2052434A1 EP07786579A EP07786579A EP2052434A1 EP 2052434 A1 EP2052434 A1 EP 2052434A1 EP 07786579 A EP07786579 A EP 07786579A EP 07786579 A EP07786579 A EP 07786579A EP 2052434 A1 EP2052434 A1 EP 2052434A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling region
- directional coupler
- coupler according
- conductors
- metal housing
- 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
Links
- 239000004020 conductor Substances 0.000 claims abstract description 51
- 230000008878 coupling Effects 0.000 claims abstract description 35
- 238000010168 coupling process Methods 0.000 claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
Definitions
- the invention relates to a directional coupler according to the preamble of the main claim.
- Directional couplers of this kind are known, for example, from Meinke / Grundlach, Taschenbuch der Hochfrequenztechnik, 5th edition, pages L29 to L34.
- An ideal separation of the forward and backward waves is possible only with directional couplers, which allow a propagation of TEM waves. So far, this has only been possible with directional couplers in coaxial cable technology.
- Directional couplers in microstrip line or coplanar line technology do not allow propagation of pure TEM waves.
- directional couplers in coaxial line technology are relatively complex in construction.
- the simpler directional couplers in microstrip line or coplanar line technology have the disadvantage that they do not permit pure TEM wave propagation and therefore the phase constants of the even and odd modes, which are so important for the function of a directional coupler, are not identical.
- An inventive directional coupler can be made very simple and inexpensive. He is extremely low-loss and above all, an extremely large bandwidth, for example, between 1 GHz and 70 GHz can be achieved.
- Fig. 1 shows a perspective plan view of a directional coupler according to the invention with the housing cover removed;
- Fig. 2 shows a section along the line A-A in Figure 1 in magnification.
- Fig. 3 shows the top view of one of the two flat sheet-metal strip conductor and with respect to the
- Width scaled by a factor of approximately 5 and
- FIG. 4 shows a perspective top view of a further embodiment of a directional coupler according to the invention with an integrated massive test port and a straight continuous and only one curved band conductor.
- Fig. 1 shows a perspective plan view of a directional coupler according to the invention with a flat metal housing 1 with removed cover 2.
- a flat space 3 is milled out, in the lateral open to the front sides of the metal housing open connection sections.
- coaxial connector couplings 4 - 7 are fastened to the lateral end faces of the metal housing 1, the inner conductors of which project into connecting sections of the flat space 3 of the metal housing.
- This flat metal housing space 3 is closed as shown in FIG. 2 from above by means of a flat cover 2 and bolted via not shown screws (holes 8) high frequency tight to the housing 1.
- the four coaxial line couplings 4 to 7 each form the four high-frequency ports of the directional coupler.
- the actual coupled lines are formed by two flat sheet-metal strip conductors 9 and 10, in the
- Coupling region between El and E2 with their broad sides facing each other at a distance next to each other are arranged.
- these two band conductors 9 and 10 are held upright in the coupling region with their broad sides perpendicular to the bottom of the housing space 3 and perpendicular to the inner surface of the attached lid 2 in the metal housing space 3.
- these flat sheet metal strip conductors are laterally bent outwards and fastened to the inner conductor ends of the coaxial conductor couplings 4 to 7.
- These flat band conductors consist of a resilient sheet material, such as copper beryllium.
- Fig. 3 shows the top view of a not yet bent strip conductor.
- the width is increased here for better understanding about five times.
- the two terminal ends 11 and 12, which are bent during assembly, have approximately the same width.
- the actual coupling section between El and E2 has gradually increasing width.
- the width is tapered and increases only gradually until the coupling end E2 again until the width of the terminal end 12 is reached.
- the width of the terminal ends 11 and 12 and the respective distance to the bottom of the housing space 3 and to the inner surface of the lid 2 are chosen so that the terminal ends each have the same characteristic impedance as the subsequent coaxial line couplings, generally 50 ohms.
- the two strip conductors 9 and 10 are arranged according to FIG. 1 in the coupling region between E1 and E2 in a distance which increases exponentially from E to E2. Their end faces are shown in FIG. 2 at a predetermined distance from the lid and
- This approximately exponential course of the distance between the two strip conductors beginning with the narrowest point at the beginning of the coupling region El and the widest point at the end E2 of the coupling region ensures, together with the course shown in Fig. 3, the width of the band conductor 9, 10 that the product of Z Even and Z Odd at each point of the coupling system is equal to the square of the system wave resistance, for example, 50 ohms. This ensures a good adaptation and isolation of the directional coupler.
- the two flat sheet metal strip conductors 9 and 10 are held in the flat space 3 in the predetermined distances from the metal housing 1 and cover 2 via support elements made of insulating material.
- each of the coupling region E1-E2 laterally outwardly bent terminal ends 11, 12 each held on small plastic rollers 13 which are glued to the metal housing 1, for example, and the both sides of the broad sides of the band conductor 9, 10 abut and preferably also glued to the strip conductors.
- these strip conductors 9, 10 are held by plungers 14 made of insulating material, which are distributed along the strip conductors at a distance and are guided in bores of the longitudinal end faces of the metal housing 1. These plungers 14 bear with their inner ends against the outwardly facing broad sides of the strip conductors 9, 10.
- the distance between the strip conductors can be set exactly.
- the ends of the plungers are preferably in turn to the Glued broad sides of the band conductor, with appropriate bias of the resilient strip conductor is possibly sufficient only the application of the ends of the strip conductors for stabilization.
- the gates 4 and 5 and the gates 6 and 7 are coupled together and the diagonally opposite gates 4 and 6 and 5 and 7 are isolated from each other at the conclusion of each other gates.
- Fig. 4 shows another embodiment of a directional coupler according to the invention and although only one of the band conductor is bent here and the other band conductor is currently running.
- a robust test port 20 is mounted, the inner conductor is connected to the straight strip conductor.
- the opposite end of the straight strip conductor is connected to a Koaxial effetskupplung which is mounted on the opposite end face of the metal housing. The rest of the structure and the support of the band conductor in the housing space is as in Fig. 1st
- Fig. 4 shows additional ferrite structures 21 which are attached to the longitudinal end walls of the metal housing space for absorbing higher modes along the coupling region.
- the directional coupler can also be operated when theoretically higher wave modes are capable of propagation at the selected dimensions.
- the directional coupler according to the invention is particularly well suited for direct integration into a existing assembly, such as an attenuator.
- additional terminating resistors can be integrated into the directional coupler if a signal is to be coupled out in only one direction.
- the integration of an attenuator at one or more connection ports is also possible.
- Such terminating resistors or attenuators can for example be integrated directly into the terminal ends 11, 12 of the strip conductors 9, 10.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Waveguides (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006038029A DE102006038029A1 (de) | 2006-08-14 | 2006-08-14 | Richtkoppler |
PCT/EP2007/006936 WO2008019777A1 (de) | 2006-08-14 | 2007-08-06 | Richtkoppler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2052434A1 true EP2052434A1 (de) | 2009-04-29 |
EP2052434B1 EP2052434B1 (de) | 2009-10-14 |
Family
ID=38561939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07786579A Active EP2052434B1 (de) | 2006-08-14 | 2007-08-06 | Richtkoppler |
Country Status (4)
Country | Link |
---|---|
US (1) | US7859361B2 (de) |
EP (1) | EP2052434B1 (de) |
DE (2) | DE102006038029A1 (de) |
WO (1) | WO2008019777A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009051370A1 (de) | 2009-06-04 | 2010-12-09 | Rohde & Schwarz Gmbh & Co Kg | Messkoppler in Bandleitertechnik |
EP2339691B1 (de) * | 2009-12-15 | 2019-02-20 | Alcatel Lucent | Physikalisch ungleichförmiger TEM-Modus-Richtungskoppler |
EP3147995B1 (de) * | 2015-09-25 | 2018-04-11 | Rohde & Schwarz GmbH & Co. KG | Leistungsrichtkoppler, kombinator und herstellungsverfahren |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1183145B (de) | 1963-03-15 | 1964-12-10 | Siemens Ag | Richtungskoppler |
US3390356A (en) * | 1965-07-30 | 1968-06-25 | Hewlett Packard Co | Tem mode coupler having an exponentially varying coefficient of coupling |
GB1168811A (en) * | 1966-10-19 | 1969-10-29 | Koepenick Funkwerk Veb | Improvements in and relating to Broad Band Coupling Arrangements for High Frequency Signals |
DE2434144C3 (de) * | 1974-07-16 | 1980-03-13 | Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner | Koaxialer Richtungskoppler mit einstellbarer Koppeldämpfung |
DE2946989C3 (de) * | 1979-11-21 | 1982-04-01 | Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner | Koaxialer Richtungskoppler |
US4459568A (en) * | 1982-02-02 | 1984-07-10 | Rockwell International Corporation | Air-stripline overlay hybrid coupler |
US4539534A (en) * | 1983-02-23 | 1985-09-03 | Hughes Aircraft Company | Square conductor coaxial coupler |
US4635006A (en) * | 1984-12-18 | 1987-01-06 | Rca Corporation | Adjustable waveguide branch directional coupler |
US5539148A (en) * | 1992-09-11 | 1996-07-23 | Uniden Corporation | Electronic apparatus case having an electro-magnetic wave shielding structure |
US6590472B2 (en) * | 2001-08-17 | 2003-07-08 | Harris Corporation | Surface mounted broadside directional coupler |
US7002433B2 (en) * | 2003-02-14 | 2006-02-21 | Microlab/Fxr | Microwave coupler |
ATE304739T1 (de) * | 2003-07-31 | 2005-09-15 | Cit Alcatel | Richtkoppler mit einem einstellmittel |
-
2006
- 2006-08-14 DE DE102006038029A patent/DE102006038029A1/de not_active Withdrawn
-
2007
- 2007-08-06 WO PCT/EP2007/006936 patent/WO2008019777A1/de active Application Filing
- 2007-08-06 EP EP07786579A patent/EP2052434B1/de active Active
- 2007-08-06 US US12/303,052 patent/US7859361B2/en active Active
- 2007-08-06 DE DE502007001760T patent/DE502007001760D1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2008019777A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7859361B2 (en) | 2010-12-28 |
DE102006038029A1 (de) | 2008-02-21 |
DE502007001760D1 (de) | 2009-11-26 |
EP2052434B1 (de) | 2009-10-14 |
US20090206947A1 (en) | 2009-08-20 |
WO2008019777A1 (de) | 2008-02-21 |
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