EP2438645A1 - Vorwärtskoppler mit bandleitern - Google Patents
Vorwärtskoppler mit bandleiternInfo
- 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
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 25
- 239000012080 ambient air Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009827 uniform distribution 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
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
Description
Claims
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 (de) | 2009-06-04 | 2010-05-14 | Vorwärtskoppler mit bandleitern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2438645A1 true EP2438645A1 (de) | 2012-04-11 |
EP2438645B1 EP2438645B1 (de) | 2014-10-22 |
Family
ID=43049409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10722603.7A Active EP2438645B1 (de) | 2009-06-04 | 2010-05-14 | Vorwärtskoppler mit bandleitern |
Country Status (4)
Country | Link |
---|---|
US (1) | US8779871B2 (de) |
EP (1) | EP2438645B1 (de) |
DE (1) | DE102009048148A1 (de) |
WO (1) | WO2010139392A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014034582A1 (ja) * | 2012-08-29 | 2014-03-06 | イーグル工業株式会社 | メカニカルシール |
US9184484B2 (en) * | 2012-10-31 | 2015-11-10 | Keysight Technologies, Inc. | Forward coupled directional coupler |
Family Cites Families (10)
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 |
US7525397B2 (en) * | 2003-12-30 | 2009-04-28 | Robert Bosch Gmbh | Stripline directional coupler having a wide coupling gap |
EP2045869A1 (de) * | 2007-10-02 | 2009-04-08 | Rohde & Schwarz GmbH & Co. KG | Richtkoppler |
-
2009
- 2009-10-02 DE DE102009048148A patent/DE102009048148A1/de not_active Withdrawn
-
2010
- 2010-05-14 WO PCT/EP2010/002960 patent/WO2010139392A1/de active Application Filing
- 2010-05-14 EP EP10722603.7A patent/EP2438645B1/de active Active
- 2010-05-14 US US13/125,487 patent/US8779871B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010139392A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20120068786A1 (en) | 2012-03-22 |
DE102009048148A1 (de) | 2010-12-09 |
US8779871B2 (en) | 2014-07-15 |
EP2438645B1 (de) | 2014-10-22 |
WO2010139392A1 (de) | 2010-12-09 |
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