EP2815455A1 - Coupling structure for the crossing of transfer lines - Google Patents
Coupling structure for the crossing of transfer linesInfo
- Publication number
- EP2815455A1 EP2815455A1 EP12813791.6A EP12813791A EP2815455A1 EP 2815455 A1 EP2815455 A1 EP 2815455A1 EP 12813791 A EP12813791 A EP 12813791A EP 2815455 A1 EP2815455 A1 EP 2815455A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cross
- input
- coupling structure
- coupler
- couplers
- 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
- 230000008878 coupling Effects 0.000 title claims abstract description 53
- 238000010168 coupling process Methods 0.000 title claims abstract description 53
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 53
- 239000004020 conductor Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000001465 metallisation Methods 0.000 description 9
- 239000011159 matrix material Substances 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
-
- 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
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/22—Hybrid ring junctions
- H01P5/227—90° branch line couplers
Definitions
- the invention relates to a coupling structure for crossing transmission lines in a signal conductor layer of a circuit substrate, in particular a coupling structure for crossing transmission lines for millimeter wave or centimeter wave signals.
- the coupling structure consists of a planar cross-coupler, also referred to as O-dB coupler, which allows an intersection of two transmission lines with minimal coupling between them.
- the planar cross-coupler is a cascade of two 90 ° hybrid couplers. Such a 90 ° hybrid coupler, which is known per se, generates at its starting points two signals which are phase-shifted by 90 ° from an input signal at one of two input points.
- the object of the invention is to provide a coupling structure for crossing three transmission lines, in particular for signals in the range of 76 to 77 GHz in a signal conductor layer of a circuit substrate.
- a contribution towards achieving this object is made according to the invention by a coupling structure for crossing three transmission lines for millimeter-wave or centimeter-wave signals in a signal conductor layer of a circuit substrate comprising three planar cross-couplers, two of each of the three cross-couplers in the clockwise direction in the plane of the cross-coupler successive input / output points of the cross-coupler are connected to a respective input / output point of a respective other of the three cross-couplers.
- the signal conductor layer is preferably a metallization layer of the circuit substrate.
- This coupling structure makes it possible, in particular, that the mentioned clockwise successive input / output points of a respective cross-coupler in the same signal conductor layer are each connected to an input / output point of a respective other one of the three cross couplers.
- a coupling structure for crossing three transmission lines can be realized within a single signal conductor layer, in which the coupling structure has no components arranged outside the signal conductor layer, in particular no discrete components.
- Such a coupling structure can be advantageously used, for example, in analog and / or digital circuits for radar sensors, in which signals in the corresponding frequency range within a metallization layer are to intersect.
- Fig. 1 is a schematic representation of a coupling structure according to the invention
- FIG. 2 shows a schematic representation of a further example of a coupling structure according to the invention
- FIG. 3 shows a schematic representation of a cross-coupler in the form of a 90 ° hybrid coupler
- Fig. 4 is a schematic representation of three by an inventive
- FIG. 5 is a schematic representation of a layer structure of a circuit substrate.
- FIGS. 1 and 2 show different examples of coupling structures 10, 10 'for crossing three transmission lines 1 1, 12, 13 for signals S1, S2 and S3 in the range from 76 to 77 GHz according to the schematic illustration in FIG. 4.
- signal lines 11, 12, 13 (FIG. 4) arranged side by side for three signals S1, S2, S3 are each provided with one Entry / exit points 21, 22, 23 connected.
- the coupling structure 10 consists of three planar cross-couplers 30, 40, 50, which are connected to each other in a star shape and are arranged in a same signal conductor layer of a circuit substrate.
- Two adjacent first input / output points 31, 32 of a first cross-coupler 30 form the input / output points 21, 22 of the coupling structure
- two adjacent first input / output points 41, 42 of a second cross-coupler 40 form the input / output points 23, 24 of Coupling structure
- two adjacent first input / output points 51, 52 of a third cross-coupler 50 form input / output points 25, 26 of the coupling structure 10.
- second input / output points 33, 34 of the first cross-coupler at circuit points B, A each having a second input / output point 44 and 53 of a respective other cross-coupler 40, 50 of the three cross-couplers connected directly in the same signal conductor position, and another second input / output points 43 of the second cross-coupler at a circuit point C with another second input / output point 54 of the third cross-coupler 50 directly connected in the same signal conductor layer.
- first input / output points 31, 32; 41, 42; or 51; 52 of a respective cross-coupler 30, 40, 50 input / output points 21 to 26 of the coupling structure, and on an opposite side of the respective cross-coupler 30, 40, 50 adjacent second input / output points 33, 34; 43, 44; or 53, 54 of the cross-coupler are each provided with a second input / output point 44, 53; 54, 33; or 34, 43 of a respective other of the three cross-couplers 30, 40, 50 connected directly in the same signal conductor layer.
- the coupling structure 10 formed thereby couples the signals S 1, S 2, S 3 supplied in this order on the first side via the input / output points 21, 22, 23 to the input / output points 26, 25, 24 on the opposite side of the coupling structure 10 in reverse order.
- the geometry of the coupling structure and the individual cross-couplers 30, 40, 50 are optimized so that superimpose the components of the respective desired signal S3, S2 and S1 constructively to the input / output points used as output 26, 25, 24 and the shares of each destructively overlay other signals.
- the electrical lengths and line impedance are set appropriately. This can be achieved for a given substrate by adjusting line lengths and line widths. In this way, a crossing of the three signal lines 1 1, 12, 13 can be achieved with the lowest possible mutual interference of the signals.
- FIG. 2 shows a second example of a coupling structure 10 'according to the invention, which likewise comprises three planar cross-couplers 30, 40, 50.
- the cross-couplers are arranged one behind the other, wherein a first cross-coupler 30 on the first side of the coupling structure 10 'two first input / output points 31, 32 of the cross coupler 30 for signals S1, S2, the input / output points 21, 22 of the coupling structure 10' , coupled with arranged in reverse order second input / output points 33, 34 of the cross coupler 30.
- a second input / output point 33 of the first cross-coupler 30 is connected at a circuit point D directly to a first input / output point 41 of a second, subsequent cross coupler 40 whose other first input / output point 42 is assigned to the signal S3 and the input / Starting point 23 of the coupling structure 10 'corresponds.
- the second cross-coupler 40 is connected to that second input / output point 33 of the first cross-coupler 30, which is opposite to the first input / output point 31 for the signal S1 diagonally. Accordingly, on the described side of the coupling structure 10 ', the signals S1, S2, S3 are supplied side by side in this order.
- the circuit point D is coupled via the second cross-coupler 40 with a diagonally opposite second input / output point 43 of the second cross-coupler 40 for the signal S1, which corresponds to the input / output point 24 of the coupling structure 10 '. Accordingly, via the second cross-coupler 40, the signal S3 present at the other first input / output point 42 of the second cross-coupler 40 is connected directly to a second input / output point 54 of the third cross-coupler 50 at a diagonally opposite circuit point E in the same signal conductor position.
- the other second input / output point 53 of the third cross-coupler 50 is connected at a node F directly in the same signal conductor position via a signal line 58 in the form of a conductor section to the other second input / output point 34 of the first cross-coupler 30.
- This connection thus runs parallel to the second cross-coupler 40.
- the two circuit points E, F are in turn coupled to respectively diagonally opposite first input / output points 52, 51 of the third cross-coupler 50, which correspond to the input / output points 26, 25 of the coupling structure 10 'correspond, so that in total by the coupling structure 10', the order of arrangement of the signals S1, S2, S3 is reversed.
- Fig. 3 shows schematically on the basis of the cross-coupler 30, the structure of one of the cross-couplers 30, 40, 50 of FIG. 1 or 2.
- the other cross-couplers 40, 50 are constructed accordingly.
- the cross-coupler 30 is constructed as a cascade of two 90 ° hybrid couplers 60, 62, wherein at a first end of the cascading, the first input / output points 31, 32 of the cross coupler are arranged directly next to one another and at a second end of the cascading second input / output points 34, 33 are arranged directly next to each other. In the plane of the cross coupler 30, the input / output points follow each other clockwise in the order of 31, 32, 33, 34, 31,.
- the cross coupler 30 comprises two longitudinal connections 64, 66, which connect the input / output points 31 and 34 or 32 and 33 directly and rectilinearly, and which are interconnected by three cross-connections 68, so that a rung-shaped structure is formed with three transversal rungs ,
- the length of the cross connections 68 is approximately one quarter of a signal wavelength in the signal line.
- the length of the respective sections of the longitudinal connections 64, 66 between two cross connections 68 likewise corresponds approximately to one quarter of a signal wavelength.
- At least two cross-couplers 30, 50 of the three cross-couplers always have two adjacent input / output points 31, 32 at one end of the relevant cascade of their 90 ° hybrid couplers 60, 62 or 51, 52 which form input / output points 21, 22 or 25, 26 of the coupling structure 10, 10 '. In the example of FIG. 1, this applies to each of the three cross-couplers.
- the circuit substrate 70 comprises a signal conductor layer 72 in the form of a correspondingly structured metallization layer, in which the respective coupling structure 10, 10 'is formed. Further, the circuit substrate 70 includes a carrier plate 74 in the form of a dielectric and a ground layer 76. The signal conductor layer 72 and the ground layer 76 are disposed on opposite sides of the carrier plate 74.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguides (AREA)
- Structure Of Printed Boards (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012202097A DE102012202097A1 (en) | 2012-02-13 | 2012-02-13 | COUPLING STRUCTURE FOR CROSSING TRANSMISSION LINES |
PCT/EP2012/075711 WO2013120561A1 (en) | 2012-02-13 | 2012-12-17 | Coupling structure for the crossing of transfer lines |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2815455A1 true EP2815455A1 (en) | 2014-12-24 |
EP2815455B1 EP2815455B1 (en) | 2019-11-20 |
Family
ID=47557036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12813791.6A Active EP2815455B1 (en) | 2012-02-13 | 2012-12-17 | Coupling structure for the crossing of transfer lines |
Country Status (6)
Country | Link |
---|---|
US (1) | US10062945B2 (en) |
EP (1) | EP2815455B1 (en) |
JP (1) | JP5931221B2 (en) |
CN (1) | CN104137330B (en) |
DE (1) | DE102012202097A1 (en) |
WO (1) | WO2013120561A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013220254A1 (en) * | 2013-10-08 | 2015-04-09 | Robert Bosch Gmbh | High frequency circuit with crossed lines |
JP6022129B1 (en) * | 2016-01-12 | 2016-11-09 | 三菱電機株式会社 | Feed circuit and antenna device |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3621400A (en) * | 1969-04-17 | 1971-11-16 | Anaren Microwave Inc | Alternating current signal-combining apparatus |
JPS4921974B1 (en) * | 1969-06-30 | 1974-06-05 | ||
JPS5223539B2 (en) * | 1971-10-11 | 1977-06-24 | ||
US4127831A (en) | 1977-02-07 | 1978-11-28 | Riblet Gordon P | Branch line directional coupler having an impedance matching network connected to a port |
JPS61172407A (en) | 1984-12-25 | 1986-08-04 | Fujitsu Ltd | Branch coupling type hybrid |
US4679010A (en) * | 1985-12-20 | 1987-07-07 | Itt Gallium Arsenide Technology Center, A Division Of Itt Corporation | Microwave circulator comprising a plurality of directional couplers connected together by isolation amplifiers |
JPS63294103A (en) * | 1987-05-27 | 1988-11-30 | Fujitsu Ltd | Three-branch line 3db hybrid circuit |
US4810982A (en) | 1987-10-23 | 1989-03-07 | Hughes Aircraft Company | Coaxial transmission-line matrix including in-plane crossover |
GB2257841B (en) * | 1991-07-18 | 1994-12-21 | Matra Marconi Space Uk Ltd | Multi-port microwave coupler |
JPH0738301A (en) * | 1993-07-23 | 1995-02-07 | Nec Corp | Cross circuit of strip line |
US5883552A (en) * | 1997-11-04 | 1999-03-16 | Hughes Electronics Corporation | Microwave power divider/combiner structures |
US6522218B1 (en) * | 2000-03-17 | 2003-02-18 | Hughes Electronics Corporation | Symmetric N×N branch-line hybrid power divider/combiner |
JP5243821B2 (en) | 2007-03-26 | 2013-07-24 | 富士フイルム株式会社 | Inorganic film and manufacturing method thereof, piezoelectric element, and liquid ejection apparatus |
US7541890B2 (en) | 2007-10-29 | 2009-06-02 | Applied Radar, Inc. | Quasi active MIMIC circulator |
JP2011041137A (en) | 2009-08-17 | 2011-02-24 | Mitsubishi Electric Corp | Power distribution/synthesis circuit |
-
2012
- 2012-02-13 DE DE102012202097A patent/DE102012202097A1/en not_active Withdrawn
- 2012-12-17 WO PCT/EP2012/075711 patent/WO2013120561A1/en active Application Filing
- 2012-12-17 CN CN201280069571.XA patent/CN104137330B/en active Active
- 2012-12-17 US US14/378,292 patent/US10062945B2/en active Active
- 2012-12-17 JP JP2014555106A patent/JP5931221B2/en active Active
- 2012-12-17 EP EP12813791.6A patent/EP2815455B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2013120561A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2815455B1 (en) | 2019-11-20 |
JP5931221B2 (en) | 2016-06-08 |
WO2013120561A1 (en) | 2013-08-22 |
US20150035616A1 (en) | 2015-02-05 |
DE102012202097A1 (en) | 2013-08-14 |
US10062945B2 (en) | 2018-08-28 |
JP2015511442A (en) | 2015-04-16 |
CN104137330A (en) | 2014-11-05 |
CN104137330B (en) | 2018-03-30 |
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