EP0872910A2 - Richtkoppler - Google Patents
Richtkoppler Download PDFInfo
- Publication number
- EP0872910A2 EP0872910A2 EP98100760A EP98100760A EP0872910A2 EP 0872910 A2 EP0872910 A2 EP 0872910A2 EP 98100760 A EP98100760 A EP 98100760A EP 98100760 A EP98100760 A EP 98100760A EP 0872910 A2 EP0872910 A2 EP 0872910A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling
- directional coupler
- coupling space
- height
- waveguide
- 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.)
- Withdrawn
Links
Images
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
- H01P5/181—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 hollow waveguides
- H01P5/182—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 hollow waveguides the waveguides being arranged in parallel
Definitions
- the present invention relates to a directional coupler a coupling room, two on each of the two ends Waveguides are coupled, the coupling space so is dimensioned that in addition to the basic shaft type H10 the higher wave types H11 and E11 are spreadable.
- Such a directional coupler is from the German Auslegeschrift 1126461 known.
- This directional coupler exists from two rectangular waveguides, which directly with their Broad sides are adjacent, being in the common Partition of the waveguide is an opening which a Coupling space forms, in which the basic wave type H10 and higher shaft types H11 and E11 are viable.
- This state of the art requires the partition between the waveguides to be as thin as possible in order to Joints at the transitions from the waveguides to the Coupling space for reducing reflections as far as possible to keep very narrow.
- the one in this publication Directional coupler described is very narrow-band. That's why the registration is based on the task of a directional coupler of the type mentioned above, the essential broadband than the directional coupler according to the state of the Technology is.
- the above object is achieved according to the features of the claim 1 solved in that between the coupling space and individual waveguides coupling screens are located and that the Height of the coupling space at least 2.5 times the height corresponds to a coupling panel. So you achieve a very broadband adaptation of the waveguide to the shaft types in the Coupling room.
- the coupling space with the connecting waveguides can can be made very easily by milling what particularly advantageous for use in Millimeter wave frequency range is.
- the directional coupler is characterized by a very compact design and he has a very high performance tolerance, because there are no very narrow gaps in the coupling area.
- FIGs 1 and 2 are two different longitudinal sections a directional coupler made in waveguide technology shown.
- 1 shows a longitudinal section parallel to the waveguide narrow side b and FIG. 2 one Longitudinal section A-A parallel to the broadside of the waveguide a.
- the Directional coupler consists of a coupling space KR of length l, on the two faces of each two symmetrical Rectangular waveguides H1, H3 and H2, H4 are coupled.
- everyone Waveguide H1, H2, H3 and H4 is via a coupling plate KB1, KB2, KB3, KB4 coupled to the coupling space KR.
- the Coupling space KR has a height that is at least 2.5 times corresponds to the coupling aperture height b. From his The basic shaft types H10 and the higher wave types H11 and E11 can be spread.
- the waveguide H1 is the entrance gate of the Directional coupler is in which an electromagnetic wave from Type H10 enters.
- the energy of this wave is said to be on the split two waveguides H2 and H4, but not in the Waveguide H3 can be coupled.
- This requirement is met one in that the coupling space K3 with respect to its width and height is dimensioned so that the transition from the wave entering the waveguide H1 into the coupling space KR in addition to the basic shaft type H10, the higher shaft types H11 and E11 can be excited, which is then in the coupling space KR in Spread the direction of the waveguides H2 and H4.
- these types of waves share the energy of the fed Shafts in equal parts on the fundamental wave H10 and on the both higher shaft types H11 and E11.
- the fundamental wave H10 therefore contains the same amount of energy as that two higher shaft types H11 and E11 together.
- the energy components of the H11 and E11 shaft types vary in the operating frequency range and are only for a discrete Frequency is the same size, but in total they always form the Half the energy of the injected wave.
- the Waveguide H3 opens into the coupling space KR, it happens an extinction of the superimposed fields of the Wave types H10 and H11, E11, so no energy in them Waveguide H3 is coupled.
- the phase difference is essential for the coupling function the 3 dB signal components of the H10 basic wave type and the H11 and E11 wave types in the branching plane of the waveguide H2 and H4.
- the cross section and the length l of the Coupling space KR can be the desired phase difference to adjust. This means that different coupling attenuations through the appropriate choice of these parameters.
- the coupling plates KB1, KB2, KB3 and Kb4 in the transitions from the waveguides H1, H2, H3, H4 to the coupling space KR cause a broadband low-reflection adjustment of the Waveguide H1, H2, H3, H4 to the shaft types in the coupling space KR.
- discontinuities KD are provided, of which one in Figures 1 and 2 Discontinuity KD in the form of a cross-sectional jump is provided.
- discontinuities KD in the coupling space KR Improvement of the reflection factor and optimization the excitation of the different shaft types in the coupling space KR can also use pins in suitable locations in the coupling area KR be provided.
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Description
Claims (1)
- Koppler mit einem Koppelraum, an dessen zwei Stirnseiten je zwei Hohlleiter angekoppelt sind, wobei der Koppelraum so dimensioniert ist, daß darin neben dem Grundwellentyp H10 die höheren Wellentypen H11 und E11 ausbreitungsfähig sind, dadurch gekennzeichnet, daß sich zwischen dem Koppelraum (KR) und den einzelnen Hohlleitern (H1, H2, H3, H4) Koppelblenden (KB1, KB2, KB3, KB4) befinden und daß die Höhe des Koppelraums (KR) mindestens dem 2,5-Fachen der Höhe (b) einer Koppelblende (KB1, KB2, KB3, KB4) entspricht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19716290 | 1997-04-18 | ||
DE19716290A DE19716290A1 (de) | 1997-04-18 | 1997-04-18 | Richtkoppler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0872910A2 true EP0872910A2 (de) | 1998-10-21 |
EP0872910A3 EP0872910A3 (de) | 1999-07-07 |
Family
ID=7826939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98100760A Withdrawn EP0872910A3 (de) | 1997-04-18 | 1998-01-17 | Richtkoppler |
Country Status (3)
Country | Link |
---|---|
US (1) | US6127902A (de) |
EP (1) | EP0872910A3 (de) |
DE (1) | DE19716290A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012084443A1 (de) * | 2010-12-21 | 2012-06-28 | Endress+Hauser Gmbh+Co.Kg | Diplexer für homodynes fmcw-radargerät |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937725A1 (de) * | 1999-08-10 | 2001-02-15 | Bosch Gmbh Robert | Hohlleiterübergang |
DE19949069A1 (de) * | 1999-10-12 | 2001-06-13 | Daimler Chrysler Ag | Koppler für elektromagnetische Wellen |
WO2007040558A2 (en) * | 2004-11-19 | 2007-04-12 | The Trustees Of Boston College | Method of fabricating nanowires and electrodes having nanogaps |
US8324983B2 (en) | 2010-10-11 | 2012-12-04 | Andrew Llc | Selectable coupling level waveguide coupler |
CN102361151B (zh) * | 2011-11-04 | 2013-07-31 | 大连海事大学 | 一种非对称共面波导横跨定向耦合器 |
US20170260850A1 (en) * | 2015-10-15 | 2017-09-14 | Halliburton Energy Services, Inc. | Safety waveguide segments |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2939093A (en) * | 1955-06-30 | 1960-05-31 | Pierre G Marie | Directional channel separation filters |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2739287A (en) * | 1950-03-17 | 1956-03-20 | Henry J Riblet | Waveguide hybrid junctions |
US2876421A (en) * | 1954-07-06 | 1959-03-03 | Henry J Riblet | Microwave hybrid junctions |
GB918419A (en) * | 1958-05-28 | 1963-02-13 | Gen Electric Co Ltd | Improvements in or relating to transmission line coupling arrangements |
DE1126461B (de) * | 1961-06-15 | 1962-03-29 | Telefunken Patent | Kurzschlitzkoppler |
GB1252969A (de) * | 1969-06-13 | 1971-11-10 | ||
DE2904054C2 (de) * | 1979-02-02 | 1983-02-03 | Spinner-GmbH Elektrotechnische Fabrik, 8000 München | 3dB-Richtungskoppler in Hohlleiterbauweise |
US4688066A (en) * | 1984-08-31 | 1987-08-18 | Rca Corporation | Opposite direction multiple-phase clocking in adjacent CCD shift registers |
JPS63245102A (ja) * | 1987-03-31 | 1988-10-12 | A T R Koudenpa Tsushin Kenkyusho:Kk | 方向性結合器 |
-
1997
- 1997-04-18 DE DE19716290A patent/DE19716290A1/de not_active Ceased
-
1998
- 1998-01-17 EP EP98100760A patent/EP0872910A3/de not_active Withdrawn
- 1998-04-08 US US09/057,193 patent/US6127902A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2939093A (en) * | 1955-06-30 | 1960-05-31 | Pierre G Marie | Directional channel separation filters |
Non-Patent Citations (1)
Title |
---|
I.F. BELOV ET AL.: "WAVEGUIDE E-PLANE DIRECTIONAL COUPLER" TELECOMMUNICATIONS AND RADIO ENGINEERING., Bd. 32/33, Nr. 2, Februar 1978, Seiten 134-138, XP002102584 NEW YORK, NY US * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012084443A1 (de) * | 2010-12-21 | 2012-06-28 | Endress+Hauser Gmbh+Co.Kg | Diplexer für homodynes fmcw-radargerät |
US9093735B2 (en) | 2010-12-21 | 2015-07-28 | Endress + Hauser Gmbh + Co. Kg | Diplexer for homodyne FMCW-radar device |
Also Published As
Publication number | Publication date |
---|---|
EP0872910A3 (de) | 1999-07-07 |
DE19716290A1 (de) | 1998-10-29 |
US6127902A (en) | 2000-10-03 |
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