EP1154510B1 - Vorrichtung zur Umwandlung zirkular polarisierter Wellen in linear polarisierte Wellen - Google Patents
Vorrichtung zur Umwandlung zirkular polarisierter Wellen in linear polarisierte Wellen Download PDFInfo
- Publication number
- EP1154510B1 EP1154510B1 EP01109544A EP01109544A EP1154510B1 EP 1154510 B1 EP1154510 B1 EP 1154510B1 EP 01109544 A EP01109544 A EP 01109544A EP 01109544 A EP01109544 A EP 01109544A EP 1154510 B1 EP1154510 B1 EP 1154510B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rays
- horizontal
- depolarizer
- vertical
- vibrating
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/165—Auxiliary devices for rotating the plane of polarisation
- H01P1/17—Auxiliary devices for rotating the plane of polarisation for producing a continuously rotating polarisation, e.g. circular polarisation
Definitions
- the invention relates to a device for converting circular vibrating electromagnetic radiation in linearly vibrating Rays.
- transmitters which are linearly oscillating Emitting rays, and others that are circularly vibrating Send out rays.
- OMT Vibration Transducer
- EP 1 032 069 A1 An apparatus for converting linearly into circularly vibrating beams is known from EP 1 032 069 A1, which represents the state of the art under Article 54 (3.4) EPC.
- Object of the present invention is therefore an apparatus to create that is capable of circularly vibrating rays for make the reception of antennas suitable, the linearly oscillating Can receive rays.
- a depolarizer in a vibration converter rotatable between a vertical output for vertically oscillating beams and a horizontal output is stored for horizontally oscillating rays and between the horizontal output and the vertical output a Depolarisationssiellung is intended for circularly vibrating beams, in the dependent on the direction of rotation of the depolarizer a left-handed Vibrations exporting beam either the horizontal or the vertical output and a clockwise oscillations exporting Beam either the vertical output or the horizontal output can be supplied.
- the depolarization position for circularly oscillating rays extends at an angle of 45 ° both to the horizontal and to the vertical direction.
- this angular position of 45 0 is a particularly high-energy yield of circularly vibrating beams possible.
- the depolarizer provided with a motor drive to its rotation are expediently as drives electric drives used, since they can be controlled very cheap.
- the motor drive has a control that depends on the Vibration direction of incident rays.
- this Control can be independent of the direction of vibration of the incident Beams automatically rotations of the depolarizer be made, which are suitable, the depolarizer within position the vibration transducer so that from the vibration transducer Blasting with a respective desired direction of vibration escape.
- the depolarizer depolarizing elements that are at vertical Oscillation of incident rays vertically aligned are. In this way, leave the vibrator in vertical Direction of vibrating rays, without any deformation would have taken place. Similarly, it can also be horizontal oscillating beams are moved.
- the invention for the derivation of circularly vibrating rays as vertically oscillating Rays the depolarizer from the horizontal direction its depolarizing elements towards the vertical Direction of its depolarizing elements pivoted by 45 °. In this position, the converter leave the circular oscillating Blasting to a large extent than in the vertical direction swinging rays.
- the vibration converter 1 also has one another flange 10, which also with screw holes 11, 12, 13, 14 is provided. By this further flange 10 extends an opening 15, which is connected to an access 16 to the interior 4 is. This access 16 runs with his through him extending center axis 17 perpendicular to a through the interior 4 extending central axis 18.
- the cylindrical part 3 is facing away from the flange 6 on its Side bounded by an outlet 19.
- This outlet 19 is with Slots 20, 21 provided through a central portion 22 of the Extend outlet 19.
- This middle part 22 is about the central axis 18 of the interior 4 rotatably mounted. That way you can the slots 20, 21 with respect to the Innraumes 4 set so be that the slots 20, 21 in the horizontal direction (FIG 4) extend or perpendicular thereto in the vertical direction.
- the Slots 20, 21 are parallel to each other.
- a changeover switch 23 is on the cylindrical part 3 in a range rotatably mounted, in which the further flange 10 in the cylindrical Part 3 opens. By turning this switch 23 can not shown deflection within the interior 4 are pivoted.
- the direction of the central axis 17 incoming radiation can not drawn deflecting be adjusted so that through the Opening 15 in the direction of the central axis 17 entering radiation in Direction of the central axis 18 is deflected so that they are in the area the outlet 19 exits the interior 4.
- the slots 20, 21 occur within the interior of the fourth deflected rays as horizontally vibrating or as vertical swinging rays out.
- the depolarizer 2 consists essentially of a cylinder 24, its cylindrical surface 25 is provided with depolarizing elements 26 is. These depolarizing elements 26 have the ability to depolarize polarized rays so that they have a Have a variety of vibration directions.
- the depolarizer 2 is fitted in the inner space 4 so that it to the central axis 18 is rotatably mounted. To execute this Rotational movements of this depolarizer 2 can be driven manually become. However, it is also possible, the depolarizer 2 at least an end 17 to be provided with a drive motor 28, with whose help the depolarizer 2 is rotated about its longitudinal axis 29 can be. Through these rotations, the depolarizing Elements 26 in a relation to the interior 4 arbitrary position to be brought.
- the depolarizing element 26 in a position in which its longitudinal axis 30 in the direction of the slots 20, 21 runs, then almost the entire of the depolarizing Element 26 depolarized beam as horizontally linearly oscillating Beam through the slots 20, 21 in the horizontal direction.
- This adjustment of the depolarizer 26 is shown in FIG 10 is shown.
- they vibrate in the vertical direction Beams needed, so the slots 20, 21 opposite the state shown in Figure 4 pivoted by 90 ° and accordingly depolarizing element 26 of depolarizer 2 in FIG the same direction of the vertically extending slots 21, 22nd pivoted. This position is indicated in FIG. In this Traps vibrate vertically in the vertical direction Interior 4.
- the depolarizer 2 In contrast, occur in the vibration converter 1, in its interior 4, the depolarizer 2 is fitted, through the end 5 circular vibrating rays into the interior 4, so is the depolarizer 2 twisted about the central axis 18 so that the depolarizing Elements 26 at an angle of 45 ° with respect to the horizontal or vertical.
- This pivoting position of the depolarizer is shown in Figures 8, 11 and 12. In this Swivel position, the circularly polarizing beams are either converted into horizontally or vertically vibrating rays.
- Depolarizer 2 may be a control for the drive motor 28 be provided, each depending on the aligned Radiation is. As a result, at the incident radiation found that this is circular swinging, so receives the drive motor 28 a pulse from its control, not shown, the depolarizing element in one between the horizontal and vertical position lying 45-degree position pivoted. Is found after pivoting, however, that the the outlet 19 leaving radiation not in accordance with the receiving antenna is, then automatically turn of the Not shown control of the drive motor 28 driven so that at a further incident circularly vibrating radiation the depolarizer 2 is pivoted by a further 90 °. In this Position is the arriving on the vibration transducer 1 circularly vibrating radiation converted into a vertically oscillating Radiation.
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Polarising Elements (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Holo Graphy (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Waveguide Aerials (AREA)
Description
- Figur 1:
- eine räumliche Darstellung eines Schwingungsumformers,
- Figur 2:
- eine Seitenansicht eines Schwingungsumformers,
- Figur 3:
- eine Seitenansicht eines Schwingungsumformers, gegenüber Figur 2 um 90° gedreht,
- Figur 4:
- eine Vorderansicht eines Schwingungsumformers,
- Figur 5:
- eine Seitenansicht eines Schwingungsumformers um 90° gegenüber Figur 3 gedreht,
- Figur 6:
- eine Seitenansicht eines zylindrischen Depolarisators,
- Figur 7:
- einen Querschnitt durch einen Depolarisator entlang der Schnittlinie VII-VII in Figur 6,
- Figur 8:
- einen Querschnitt durch einen Schwingungsumformer, gegenüber Figur 7 um 45° gedreht,
- Figur 9:
- einen Querschnitt durch einen Schwingungsumformer mit eingesetztem Depolarisator entsprechend der Schnittlinie IX-IX in Figur 5,
- Figur 10:
- einen Querschnitt durch einen Schwingungsumformer mit gegenüber Figur 9 um 90° gedrehtem Depolarisator,
- Figur 11:
- einen Querschnitt durch einen Schwingungsumformer mit gegenüber Figur 9 um 45° nach rechts verdrehtem Depolarisator und
- Figur 12:
- einen Querschnitt durch einen Schwingungsumformer mit gegenüber Figur 9 um 45° nach links verdrehtem Depolarisator.
Claims (1)
- Vorrichtung zur Umwandlung zirkular schwingender elektromagnetischer Strahlen in linear schwingende Strahlen mit einem Depolarisator (2), dessen Oberfläche (25) depolarisierende Elemente (26) aufweist, wobei der Depolarisator (2) in einem Schwingungsumformer (1) drehbar zwischen einem Vertikalausgang für vertikal schwingende Strahlen und einem Horizonalausgang für horizontal schwingende Strahlen gelagert ist und zwischen dem Horizontalausgang und dem Vertikalausgang eine Depolarisationsstellung für zirkular schwingende Strahlen vorgesehen ist, in der abhängig von der Drehrichtung des Depolarisators (2) ein linksdrehende Schwingungen ausführender Strahl entweder dem Horizontal- oder dem Vertikalausgang und ein rechtsdrehende Schwingungen ausführender Strahl entweder dem Vertikal- oder dem Horizontalausgang zuleitbar ist, wobei zur Ableitung der zirkular schwingenden Strahlen als horizontal schwingende Strahlen der Depolarisator (2) von der vertikalen Richtung seiner depolarisierenden Elemente (26) in Richtung auf die horizontale Richtung seiner depolarisierenden Elemente (26) um 45° verschwenkt ist, und zur Ableitung der zirkular schwingenden Strahlen als vertikal schwingende Strahlen der Depolarisator (2) von der horizontalen Richtung seiner depolarisierenden Elemente (26) in Richtung auf die vertikale Richtung seiner depolarisierenden Elemente (26) um 45° verschwenkt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20006916U | 2000-04-14 | ||
DE20006916U DE20006916U1 (de) | 2000-04-14 | 2000-04-14 | Vorrichtung zur Umwandlung zirkular schwingender elektromagnetischer Strahlen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1154510A2 EP1154510A2 (de) | 2001-11-14 |
EP1154510A3 EP1154510A3 (de) | 2002-07-10 |
EP1154510B1 true EP1154510B1 (de) | 2005-09-07 |
Family
ID=7940287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01109544A Expired - Lifetime EP1154510B1 (de) | 2000-04-14 | 2001-04-17 | Vorrichtung zur Umwandlung zirkular polarisierter Wellen in linear polarisierte Wellen |
Country Status (4)
Country | Link |
---|---|
US (1) | US6693497B2 (de) |
EP (1) | EP1154510B1 (de) |
AT (1) | ATE304225T1 (de) |
DE (2) | DE20006916U1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2801948C (en) | 2010-06-08 | 2017-08-08 | National Research Council Of Canada | Orthomode transducer |
EP2684248B1 (de) | 2011-03-09 | 2019-05-01 | Thrane & Thrane A/S | Vorrichtung zum umschalten zwischen linearer und zirkularer polarisation mit drehbarem depolarisator |
US10756417B2 (en) * | 2017-12-14 | 2020-08-25 | Waymo Llc | Adaptive polarimetric radar architecture for autonomous driving |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3920563A1 (de) * | 1989-06-23 | 1991-01-10 | Mueller Heinz Juergen Dipl Ing | Erreger- bzw. speisesystem fuer eine parabolantenne |
JPH03185901A (ja) * | 1989-12-14 | 1991-08-13 | Sharp Corp | 偏波変換器 |
EP0452022A1 (de) * | 1990-04-09 | 1991-10-16 | Plessey Semiconductors Limited | Polarisieranordnung |
JPH06164204A (ja) * | 1992-11-24 | 1994-06-10 | Matsushita Electric Ind Co Ltd | 衛星受信用コンバータ |
JPH07321542A (ja) * | 1994-05-20 | 1995-12-08 | Fujitsu General Ltd | 一次放射器カバー |
US6100703A (en) * | 1998-07-08 | 2000-08-08 | Yissum Research Development Company Of The University Of Jerusalum | Polarization-sensitive near-field microwave microscope |
US6166610A (en) * | 1999-02-22 | 2000-12-26 | Hughes Electronics Corporation | Integrated reconfigurable polarizer |
-
2000
- 2000-04-14 DE DE20006916U patent/DE20006916U1/de not_active Expired - Lifetime
-
2001
- 2001-04-16 US US09/835,877 patent/US6693497B2/en not_active Expired - Fee Related
- 2001-04-17 AT AT01109544T patent/ATE304225T1/de not_active IP Right Cessation
- 2001-04-17 DE DE50107331T patent/DE50107331D1/de not_active Expired - Fee Related
- 2001-04-17 EP EP01109544A patent/EP1154510B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1154510A2 (de) | 2001-11-14 |
ATE304225T1 (de) | 2005-09-15 |
DE50107331D1 (de) | 2005-10-13 |
US6693497B2 (en) | 2004-02-17 |
DE20006916U1 (de) | 2001-06-13 |
US20020154402A1 (en) | 2002-10-24 |
EP1154510A3 (de) | 2002-07-10 |
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