EP1183752B1 - Polarization separating filter - Google Patents
Polarization separating filter Download PDFInfo
- Publication number
- EP1183752B1 EP1183752B1 EP00922816A EP00922816A EP1183752B1 EP 1183752 B1 EP1183752 B1 EP 1183752B1 EP 00922816 A EP00922816 A EP 00922816A EP 00922816 A EP00922816 A EP 00922816A EP 1183752 B1 EP1183752 B1 EP 1183752B1
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- European Patent Office
- Prior art keywords
- cored
- hollow
- conductors
- conductor
- central
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
- H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
Definitions
- the present invention relates to a polarizing switch, consisting of a central waveguide in which two are linear orthogonally polarized waves are capable of propagation, whereby one end of the central waveguide with a short circuit wall is completed and near the short circuit wall two Waveguide on two opposite walls of the central waveguide in an at least approximately the same, perpendicular to the longitudinal axis of the waveguide Cross-sectional plane are coupled.
- a polarizing switch consisting of a central waveguide in which two are linear orthogonally polarized waves are capable of propagation, whereby one end of the central waveguide with a short circuit wall is completed and near the short circuit wall two Waveguide on two opposite walls of the central waveguide in an at least approximately the same, perpendicular to the longitudinal axis of the waveguide Cross-sectional plane are coupled.
- Such one Polarization switch is known from DE 31 11 106 C2.
- a central waveguide with a round or square cross section on two each other opposite walls in the same cross-sectional plane a rectangular waveguide
- the invention is therefore based on the object Specify polarization switch of the type mentioned at the outset, which can be produced with the least possible effort and moreover has very good electrical properties.
- Claim 1 solved in that the two waveguides Are waveguides that face the opposite ends Sides of the central waveguide are coupled, the Waveguides are dimensioned so that only the Fundamental wave type is spreadable, and that the two Waveguide twisted against each other about their longitudinal axes are that the electromagnetic fields of the two Waveguides are oriented orthogonally to each other.
- this polarization switch Because all waveguides of this polarization switch in one plane lie, it can be in a planar waveguide circuit to get integrated.
- the central waveguide and the one on it Coupled waveguides are used as half shells made in the bottom and lid of a case are let in. Because of its compact design, it is too possible, the polarization switch completely from one piece to manufacture by a basic body from the connection sides the waveguide gates of the central and the side coupled waveguide is processed.
- the two waveguides can be attached to the central waveguide to be coupled as possible to achieve broadband coupling.
- In the central waveguide can be at least one in the coupling area of the two waveguides Rod be arranged.
- the partition plate perpendicular to the longitudinal axes of the coupled waveguide is oriented. It can in central waveguide at least in the coupling area of a lateral waveguide at the angle between the partition and the short-circuit wall can be arranged a web.
- the side waveguides have a rectangular cross section and the waveguide, the broad side of which is perpendicular to the longitudinal axis of the central one Waveguide are oriented over an E-level manifold coupled to the central waveguide, with the E-level manifold due to a contour present in the central waveguide is formed, which is one of the short-circuit wall outgoing, into the coupling level of the two lateral Waveguide extending partition that forms perpendicular to the longitudinal axes of the laterally arranged Waveguide is oriented.
- FIG. 1 shows a perspective view of a Polarization switch, which has a central waveguide 1 has at one end with a short circuit wall 2nd is completed.
- the central depicted Rectangular waveguide 1 has a square cross section, so that in it two linearly orthogonally polarized waves H01 and H10 are spreadable.
- the in the Cross sections of the two rectangular waveguides 3 and 4 Arrows indicated indicate the ones assigned to them Polarizations.
- Both rectangular waveguides 3 and 4 are in an at least approximately the same, to the longitudinal axis of the central waveguide 1 extending cross-sectional plane coupled.
- the distance of this cross-sectional plane from the Short circuit wall 2 is approximately in this embodiment 1/8 of the waveguide wavelength at the middle Operating frequency and, as explained later, for both Waveguide gates may also be different.
- the two Rectangular waveguides 3 and 4 are in terms of their cross sections Twisted 90 ° against each other.
- the Rectangular waveguide 3 and 4 In order to connect the Rectangular waveguide 3 and 4 to the central waveguide 1 achieve, are the rectangular waveguide 3 and 4 over panels 5 and 6 coupled to the central waveguide 1.
- a partition plate 7 in the central waveguide 1 is a partition plate 7, the starts from the short-circuit wall 2 and in the Coupling area between the two rectangular waveguides 3 and 4 extends.
- the electrical short circuit level for the Rectangular waveguide 3, the broad sides of which are parallel to Longitudinal axis of the central waveguide 1 are in essentially determined by the length of the divider.
- the partition 7 ensures also for good decoupling between the two Polarizations.
- the partition plate 7 with a Direction of the longitudinal axis of the central waveguide 1 be stepped contour, making better Adaptation properties can be achieved.
- the central waveguide 1 of the polarization switch can also a circular waveguide, such as one shown in Figure 2a Top view and a front view shown in Figure 2b to the short-circuit level 2 shows.
- Figures 2a and 2b are parts that the in the previously described Figure 1 occurring parts the same, with the same reference numerals been provided. Also in the ones described below Figures are the same parts with the same reference numerals Mistake.
- Figures 3a and 3b correspond to Figures 2a and 2b the difference that with the in Figures 3a, b Polarization switch shown between the partition plate 7 and the coupled rectangular waveguide 3 at an angle between the short-circuit wall 2 and the partition 7 stepped web 8 is arranged.
- stepped web 8 is a transformation between the wave type of the central waveguide and the latter by the Waveguide 3 coupled basic wave type reached, wherein at the same time the electromagnetic field in the central Waveguide 1 in the direction of the lateral waveguide 3 is curved. This makes the realization good electrical properties in a wide frequency band significantly improved.
- the web 8 can also on the Divider 7 in the direction of the longitudinal axis of the central Waveguide 1 protrude because it has the properties of orthogonal polarization on the other side Waveguide 4 is coupled, influenced only marginally. It is also possible that part of the web 8 in the aperture 5 of the waveguide 3 protrudes.
- FIGS. 4a (top view) and FIG. 4b (Front view) shown in the polarization switch central circular waveguide 1 an E-level manifold 9 for the Rectangular waveguide 3, the broad sides of which are perpendicular to Longitudinal axis of the central circular waveguide 1, integrated.
- the E-level manifold 9 is a by central circular waveguide 1 existing contour formed that at the same time an outgoing from the short-circuit wall 2 into the coupling plane of the two rectangular waveguides 3 and 4 extending partition forms perpendicular to the Longitudinal axes of the rectangular waveguide 3 and 4 is oriented.
- This E-level manifold 9 like the stepped web 8 in Figure 3, a curvature of the electromagnetic field of the Wave type of the central waveguide 1, which in the lateral waveguide 3 is coupled, and thus a Improvement of the electrical properties of the coupling.
- the E-level manifold 9 can also be in the form of several stages be executed.
- Figures 5a and 5b show that in the central Waveguide 1 a pin 10 in the coupling area between the two rectangular waveguides 3 and 4 is arranged.
- This Pin 10 is used for better adjustment of the coupled Rectangular waveguide 3 and 4.
- Rectangular waveguides are therefore also waveguides with rectangular cross-sections (e.g. rectangular with rounded edges, elliptical and the like) meant in which similar wave types are capable of spreading are like in purely rectangular waveguides. deviant of those shown in Figures 2 to 5
- the central waveguide 1 can also be exemplary embodiments have a square cross section or one compared to round or square deviating cross-section, in which definitely polarized two orthogonally linear Waves are capable of spreading.
- the polarization switch described can also be used as so-called frequency polarization switches are operated, where the orthogonal polarizations for different Frequency ranges are designed.
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- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Description
Die vorliegende Erfindung betrifft eine Polarisationsweiche, bestehend aus einem zentralen Hohlleiter, in dem zwei linear orthogonal polarisierte Wellen ausbreitungsfähig sind, wobei ein Ende des zentralen Hohlleiters mit einer Kurzschlußwand abgeschlossen ist und in der Nähe der Kurzschlußwand zwei Wellenleiter an zwei einander gegenüberliegenden Wänden des zentralen Hohlleiters in einer zumindest annähernd gleichen, zur Hohlleiterlängsachse senkrecht verlaufenden Querschnittsebene angekoppelt sind. Eine derartige Polarisationsweiche ist aus der DE 31 11 106 C2 bekannt. Dabei sind an einen zentralen Hohlleiter mit rundem oder quadratischen Querschnitt an zwei einander gegenüberliegenden Wänden in der gleichen Querschnittsebene ein Rechteckhohlleiter und ein Koaxialleiter angekoppelt. Die Ankopplung eines Koaxialleiters ist aufwendig in der Fertigung und Montage, da spezielle mit hoher Präzision zu fertigende Einzelteile (z.B. Innenleiter, Stützscheiben etc.) erforderlich sind. Da bei Standardanwendungen von Polarisationsweichen Hohlleiteranschlußtore vorhanden sind, müssen extra Koaxial-/Hohlleiterübergänge vorgesehen werden, wodurch gute Reflexionseigenschaften nur schwer erreicht werden können.The present invention relates to a polarizing switch, consisting of a central waveguide in which two are linear orthogonally polarized waves are capable of propagation, whereby one end of the central waveguide with a short circuit wall is completed and near the short circuit wall two Waveguide on two opposite walls of the central waveguide in an at least approximately the same, perpendicular to the longitudinal axis of the waveguide Cross-sectional plane are coupled. Such one Polarization switch is known from DE 31 11 106 C2. Here are connected to a central waveguide with a round or square cross section on two each other opposite walls in the same cross-sectional plane a rectangular waveguide and a coaxial conductor are coupled. The coupling of a coaxial conductor is complex in the Manufacturing and assembly because special with high precision too Individual parts (e.g. inner conductor, support washers etc.) are required. As with standard applications from Polarization switch waveguide connection gates are available, extra coaxial / waveguide transitions must be provided, making it difficult to achieve good reflection properties can be.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Polarisationsweiche der eingangs genannten Art anzugeben, die mit möglichst geringem Aufwand herstellbar ist und zudem sehr gute elektrische Eigenschaften aufweist.The invention is therefore based on the object Specify polarization switch of the type mentioned at the outset, which can be produced with the least possible effort and moreover has very good electrical properties.
Die genannte Aufgabe wird mit den Merkmalen des
Patentanspruchs 1 dadurch gelöst, daß die zwei Wellenleiter
Hohlleiter sind, die stirnseitig an gegenüberliegenden
Seiten des zentralen Hohlleiters angekoppelt sind, wobei die
Hohlleiter so dimensioniert sind, daß in ihnen nur der
Grundwellentyp ausbreitungsfähig ist, und daß die beiden
Hohlleiter um ihre Längsachsen so gegeneinander verdreht
sind, daß die elektromagnetischen Felder der beiden
Hohlleiter orthogonal zueinander orientiert sind.The above task is carried out with the characteristics of
Da alle Hohlleiter dieser Polarisationsweiche in einer Ebene liegen, kann sie in eine planare Hohlleiterschaltung integriert werden. Der zentrale Hohlleiter und die daran angekoppelten Hohlleiter werden dazu als Halbschalen gefertigt, die in dem Boden und Deckel eines Gehäuses eingelassen sind. Aufgrund des kompakten Aufbaus ist es auch möglich, die Polarisationsweiche komplett aus einem Stück herzustellen, indem ein Grundkörper von den Anschlußseiten der Hohlleitertore des zentralen und der seitlich angekoppelten Hohlleiter bearbeitet wird.Because all waveguides of this polarization switch in one plane lie, it can be in a planar waveguide circuit to get integrated. The central waveguide and the one on it Coupled waveguides are used as half shells made in the bottom and lid of a case are let in. Because of its compact design, it is too possible, the polarization switch completely from one piece to manufacture by a basic body from the connection sides the waveguide gates of the central and the side coupled waveguide is processed.
Vorteilhafte Weiterbildungen und Ausführungen der Erfindung gehen aus den Unteransprüchen hervor. Advantageous further developments and designs of the invention emerge from the subclaims.
So können die beiden Hohlleiter über Blenden an den zentralen Hohlleiter angekoppelt sein, um eine möglichst breitbandige Ankopplung zu erzielen. Im zentralen Hohlleiter kann im Koppelbereich der beiden Hohlleiter mindestens ein Stab angeordnet sein.The two waveguides can be attached to the central waveguide to be coupled as possible to achieve broadband coupling. In the central waveguide can be at least one in the coupling area of the two waveguides Rod be arranged.
Es ist zweckmäßig, daß sich im zentralen Hohlleiter von der Kurzschlußwand aus ein Trennblech in den Koppelbereich der beiden seitlich angekoppelten Hohlleiter hinein erstreckt, wobei das Trennblech senkrecht zu den Längsachsen der angekoppelten Hohlleiter orientiert ist. Dabei kann im zentralen Hohlleiter mindestens im Koppelbereich eines seitlichen Hohlleiters im Winkel zwischen dem Trennblech und der Kurzschlußwand ein Steg angeordnet sein.It is appropriate that in the central waveguide from the Short circuit wall from a partition in the coupling area of the extends into the two laterally coupled waveguides, the partition plate perpendicular to the longitudinal axes of the coupled waveguide is oriented. It can in central waveguide at least in the coupling area of a lateral waveguide at the angle between the partition and the short-circuit wall can be arranged a web.
In einer weiteren Ausführung haben die seitlichen Hohlleiter einen rechteckförmigen Querschnitt und der Hohlleiter, dessen Breitseite senkrecht zur Längsachse des zentralen Hohlleiters orientiert sind, ist über einen E-Ebenen-Krümmer an den zentralen Hohlleiter angekoppelt, wobei der E-Ebenen-Krümmer durch eine im zentralen Hohlleiter vorhandene Kontur gebildet wird, die gleichzeitig eine von der Kurzschlußwand ausgehende, sich in die Ankoppelebene der beiden seitlichen Hohlleiter hineinerstreckende Trennwand bildet, die senkrecht zu den Längsachsen der seitlich angeordneten Hohlleiter orientiert ist. Mit dieser Anordnung erhält man eine optimale Entkopplung der beiden über die seitlichen Hohlleiter angekoppelten Polarisationen.In a further embodiment, the side waveguides have a rectangular cross section and the waveguide, the broad side of which is perpendicular to the longitudinal axis of the central one Waveguide are oriented over an E-level manifold coupled to the central waveguide, with the E-level manifold due to a contour present in the central waveguide is formed, which is one of the short-circuit wall outgoing, into the coupling level of the two lateral Waveguide extending partition that forms perpendicular to the longitudinal axes of the laterally arranged Waveguide is oriented. With this arrangement you get an optimal decoupling of the two on the side Waveguide coupled polarizations.
Die Erfindung wird nachfolgend anhand einiger in der
Zeichnung dargestellter Ausführungsbeispiele näher
erläutert. Es zeigen:
Die Figur 1 zeigt in einer perspektivischen Darstellung eine
Polarisationsweiche, die einen zentralen Hohlleiter 1
aufweist, der an einem Ende mit einer Kurzschlußwand 2
abgeschlossen ist. Der dargestellte zentrale
Rechteckhohlleiter 1 hat einen quadratischen Querschnitt, so
daß in ihm zwei linear orthogonal polarisierte Wellen H01
und H10 ausbreitungsfähig sind. Um diese beiden
Polarisationen an den zentralen Hohlleiter 1 ankoppeln zu
können, sind zwei Rechteckhohlleiter 3 und 4 an zwei
gegenüberliegenden Seitenwänden des zentralen Hohlleiters 1
angekoppelt. Diese seitlich angekoppelten Rechteckhohlleiter
3 und 4 sind so dimensioniert, daß in ihnen nur der
Grundwellentyp H01, H10 ausbreitungsfähig ist. Die in den
Querschnitten der beiden Rechteckhohlleiter 3 und 4
angedeuteten Pfeile kennzeichnen die ihnen zugeordneten
Polarisationen. Beide Rechteckhohlleiter 3 und 4 sind in
einer zumindest annähernd gleichen, zur Längsachse des
zentralen Hohlleiters 1 verlaufenden Querschnittsebene
angekoppelt. Der Abstand dieser Querschnittsebene von der
Kurzschlußwand 2 beträgt in diesem Ausführungsbeispiel etwa
1/8 der Hohlleiterwellenlänge bei der mittleren
Betriebsfrequenz und kann, wie später ausgeführt, für beide
Hohlleitertore auch unterschiedlich sein. Zur eindeutigen
Trennung der beiden Polarisationen sind die beiden
Rechteckhohlleiter 3 und 4 bezüglich ihrer Querschnitte um
90° gegeneinander verdreht.1 shows a perspective view of a
Polarization switch, which has a
Um eine möglichst breitbandige Ankopplung der
Rechteckhohlleiter 3 und 4 an den zentralen Hohlleiter 1 zu
erzielen, sind die Rechteckhohlleiter 3 und 4 über Blenden 5
und 6 an den zentralen Hohlleiter 1 angekoppelt. Im
zentralen Hohlleiter 1 befindet sich ein Trennblech 7, das
von der Kurzschlußwand 2 ausgeht und sich in den
Koppelbereich zwischen den beiden Rechteckhohlleitern 3 und
4 erstreckt. Durch das Einfügen eines solchen Trennblechs 7
können die elektrischen Kurzschlußebenen für die zwei
Polarisationsankopplungen weitgehend unabhängig optimiert
werden. Die elektrische Kurzschlußebene für den
Rechteckhohlleiter 3, dessen Breitseiten parallel zur
Längsachse des zentralen Hohlleiters 1 liegen, wird im
wesentlichen durch die Länge des Trennblechs bestimmt. Die
elektrische Kurzschlußebene für den anderen
Rechteckhohlleiter 4, dessen Breitseiten senkrecht zu der
Längsachse des zentralen Hohlleiters 1 liegen, ergibt sich
im wesentlichen durch den Teilbereich der Kurzschlußwand 2,
der sich zwischen dem Trennblech 7 und dem
Rechteckhohlleiter 4 befindet. Das Trennblech 7 sorgt
außerdem für eine gute Entkopplung zwischen den beiden
Polarisationen. Zudem kann das Trennblech 7 mit einer in
Richtung der Längsachse des zentralen Hohlleiters 1
gestuften Kontur versehen sein, wodurch bessere
Anpassungseigenschaften erreicht werden können. In order to connect the
Der zentrale Hohlleiter 1 der Polarisationsweiche kann auch
ein Rundhohlleiter sein, wie eine in Figur 2a dargestellte
Draufsicht und eine in Figur 2b dargestellte Frontansicht
auf die Kurzschlußebene 2 zeigt. In den Figuren 2a und 2b
sind Teile, die den in der zuvor beschriebenen Figur 1
vorkommenden Teilen gleichen, mit gleichen Bezugszeichen
versehen worden. Auch in den nachfolgend beschriebenen
Figuren sind gleiche Teile mit gleichen Bezugszeichen
versehen.The
Die Figuren 3a und 3b entsprechen den Figuren 2a und 2b mit
dem Unterschied, daß mit der in den Figuren 3a, b
dargestellten Polarisationsweiche zwischen dem Trennblech 7
und dem angekoppelten Rechteckhohlleiter 3 im Winkel
zwischen der Kurzschlußwand 2 und dem Trennblech 7 ein
gestufter Steg 8 angeordnet ist. Durch den gestuften Steg 8
wird eine Transformation zwischen dem Wellentyp des
zentralen Hohlleiters und dem von diesem durch den
Hohlleiter 3 angekoppelten Grundwellentyp erreicht, wobei
gleichzeitig das elektromagnetische Feld im zenralen
Hohlleiter 1 in Richtung des seitlichen Hohlleiters 3
gekrümmt wird. Dadurch wird die Realisierung guter
elektrischer Eigenschaften in einem breiten Frequenzband
wesentlich verbessert. Der Steg 8 kann auch über das
Trennblech 7 in Richtung der Längsachse des zentralen
Hohlleiters 1 hinausragen, da er die Eigenschaften der
orthogonalen Polarisation, die am anderen seitlichen
Hohlleiter 4 angekoppelt wird, nur unwesentlich beeinflußt.
Es ist auch möglich, daß ein Teil des Steges 8 in die Blende
5 des Hohlleiters 3 hineinragt.Figures 3a and 3b correspond to Figures 2a and 2b
the difference that with the in Figures 3a, b
Polarization switch shown between the
Bei der in den Figuren 4a (Draufsicht) und Figur 4b
(Frontansicht) dargestellten Polarisationsweiche ist in dem
zentralen Rundhohlleiter 1 ein E-Ebenen-Krümmer 9 für den
Rechteckhohlleiter 3, dessen Breitseiten rechtwinklig zur
Längsachse des zentralen Rundhohlleiters 1 verlaufen,
integriert. Der E-Ebenen-Krümmer 9 wird durch eine im
zentralen Rundhohlleiter 1 vorhandene Kontur gebildet, die
gleichzeitig eine von der Kurzschlußwand 2 ausgehende, sich
in die Ankoppelebene der beiden Rechteckhohlleiter 3 und 4
hineinerstreckende Trennwand bildet, die senkrecht zu den
Längsachsen der Rechteckhohlleiter 3 und 4 orientiert ist.
Dieser E-Ebenen-Krümmer 9 bewirkt, wie der gestufte Steg 8
in Figur 3, eine Krümmung des elektromagnetischen Feldes des
Wellentyps des zentralen Hohlleiters 1, der in den
seitlichen Hohlleiter 3 eingekoppelt wird, und damit eine
Verbeserung der elektrischen Eigenschaften der Ankopplung.
Der E-Ebenen-Krümmer 9 kann auch in Form mehrerer Stufen
ausgeführt sein.In the case of FIGS. 4a (top view) and FIG. 4b
(Front view) shown in the polarization switch
central
Die Figuren 5a und 5b zeigen, daß in dem zentralen
Hohlleiter 1 ein Stift 10 im Koppelbereich zwischen den
beiden Rechteckhohlleitern 3 und 4 angeordnet ist. Dieser
Stift 10 dient zur besseren Anpassung der angekoppelten
Rechteckhohlleiter 3 und 4. Es können auch mehrere Stifte
oder andere Diskontinuitäten im Koppelbereich zwischen den
beiden Rechteckhohlleitern 3 und 4 zur Verbesserung der
Anpassung angeordnet werden.Figures 5a and 5b show that in the central
Waveguide 1 a
Wenn in der vorangehenden Beschreibung von
Rechteckhohlleitern die Rede ist, sind damit auch Hohlleiter
mit rechteckähnlichen Querschnitten (z.B. rechteckig mit
abgerundeten Kanten, ellipsenförmig und dergleichen)
gemeint, in denen ähnliche Wellentypen ausbreitungsfähig
sind wie in rein rechteckförmigen Hohlleitern. Abweichend
von den in den Figuren 2 bis 5 dargestellten
Ausführungsbeispielen kann der zentrale Hohlleiter 1 auch
einen quadratischen Querschnitt aufweisen oder einen
gegenüber rund oder quadratisch abweichenden Querschnitt, in
dem auf jeden Fall zwei orthogonal linear polarisierte
Wellen ausbreitungsfähig sind.If in the previous description of
Rectangular waveguides are mentioned, are therefore also waveguides
with rectangular cross-sections (e.g. rectangular with
rounded edges, elliptical and the like)
meant in which similar wave types are capable of spreading
are like in purely rectangular waveguides. deviant
of those shown in Figures 2 to 5
The
Die beschriebene Polarisationsweiche kann auch als sogenannte Frequenzpolarisationsweiche betrieben werden, wobei die orthogonalen Polarisationen für unterschiedliche Frequenzbereiche ausgelegt sind.The polarization switch described can also be used as so-called frequency polarization switches are operated, where the orthogonal polarizations for different Frequency ranges are designed.
Claims (5)
- Polarization filter, consisting of a central hollow-cored conductor (1), in which two orthogonal linear polarized waves can be propagated, whereby one end of the central hollow-cored conductor (1) is closed off by a short-circuit wall (2) and, in the vicinity of the short-circuit wall (2), two hollow-cored -conductors (3, 4) are coupled at two mutually-opposed walls of the central hollow-cored conductor (1) in an at least approximately identical cross-sectional plane running perpendicular to the longitudinal axis of the hollow-cored conductor on the face side, on opposite sides of the central hollow-cored conductor (1), whereby the hollow-cored conductors (3, 4) are dimensioned in such a way that only the groundwave type can be propagated in them, and in that the two hollow-cored conductors (3, 4) are rotated about their longitudinal axes against each other in such a way that the electromagnetic fields of the two hollow-cored conductors (3, 4) are orientated orthogonally to each other, whereby, in the central hollow-cored conductor (1) a separation sheet (7) projects from the short-circuit wall (2) into the coupling area of the two hollow-cored conductors (3, 4), whereby the separation sheet (7) is orientated perpendicular to the longitudinal axes of the coupled hollow-cored conductors (3, 4).
- Polarization filter according to Claim 1, characterised in that the two hollow-cored conductors (3, 4) are coupled by means of diaphragms (5, 6) to the central hollow-cored conductor (1).
- Polarization filter according to Claim 1, characterised in that at least one bar (10) is arranged in the central hollow-cored conductor (1) in the coupling area of the two hollow-cored conductors (3, 4).
- Polarization filter according to Claim 1, characterised in that a web (8) is arranged in the central hollow-cored conductor (1) at least in the coupling area of one of the two hollow-cored conductors (3, 4), in the angle between the separation sheet (7) and the short-circuit wall (2).
- Polarization filter according to Claim 1, characterised in that the two hollow-cored conductors (3, 4) have a rectangular cross-section, and the hollow-cored conductor (3), of which the broad sides are orientated perpendicular to the longitudinal axis of the central hollow-cored conductor (1), is coupled by means of an E-plane elbow element (9), whereby the E-plane elbow clement (9) is formed by a contour present in the central hollow-cored conductor (1), which at the same time forms a separation wall extending from the short-circuit wall (2) into the coupling area of the two hollow-cored conductors (3, 4), said separation wall being orientated perpendicular to the longitudinal axes of the hollow-cored conductors (3, 4).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19922709A DE19922709A1 (en) | 1999-05-18 | 1999-05-18 | Polarization switch |
DE19922709 | 1999-05-18 | ||
PCT/IB2000/000633 WO2000070705A1 (en) | 1999-05-18 | 2000-05-12 | Polarization separating filter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1183752A1 EP1183752A1 (en) | 2002-03-06 |
EP1183752B1 true EP1183752B1 (en) | 2004-01-28 |
Family
ID=7908356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00922816A Expired - Lifetime EP1183752B1 (en) | 1999-05-18 | 2000-05-12 | Polarization separating filter |
Country Status (6)
Country | Link |
---|---|
US (1) | US6768395B1 (en) |
EP (1) | EP1183752B1 (en) |
AU (1) | AU4309400A (en) |
DE (2) | DE19922709A1 (en) |
NO (1) | NO20015644L (en) |
WO (1) | WO2000070705A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2496235C (en) * | 2005-02-04 | 2011-11-15 | James Plant | Polarization filter utilizing brewster's angle |
GB2434922A (en) * | 2006-02-03 | 2007-08-08 | Ericsson Telefon Ab L M | Ortho-mode transducer connecting two rectangular waveguides to a common circular waveguide |
US8081046B2 (en) * | 2006-03-10 | 2011-12-20 | Optim Microwave, Inc. | Ortho-mode transducer with opposing branch waveguides |
CN103633449B (en) * | 2010-03-12 | 2016-05-25 | 康普技术有限责任公司 | Dual-polarized reflector antenna assembly |
GB201202717D0 (en) | 2012-02-17 | 2012-04-04 | Pro Brand International Europ Ltd | Apparatus for use in the receipt and/or transmission of data signals |
JP6316076B2 (en) * | 2014-04-18 | 2018-04-25 | 三菱電機株式会社 | Polarization splitter |
DE102016224097A1 (en) * | 2016-12-05 | 2018-06-07 | Airbus Defence and Space GmbH | Orthomodine coupler to reduce the coupling of fundamental modes |
WO2021083498A1 (en) * | 2019-10-29 | 2021-05-06 | European Space Agency | Waveguide component for use in an orthomode junction or an orthomode transducer |
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Publication number | Priority date | Publication date | Assignee | Title |
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US2766430A (en) * | 1953-04-02 | 1956-10-09 | Gen Precision Lab Inc | Microwave power divider |
GB1507147A (en) * | 1974-09-25 | 1978-04-12 | Marconi Co Ltd | Multiplexing arrangements |
US3932822A (en) * | 1975-01-30 | 1976-01-13 | Edward Salzberg | Broad band orthogonal mode junction |
DE2651935B2 (en) * | 1976-11-13 | 1980-09-04 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Broadband polarization filter |
DE3111106A1 (en) * | 1981-03-20 | 1982-09-30 | Siemens AG, 1000 Berlin und 8000 München | Polarisation filter |
JPS6152002A (en) * | 1984-08-20 | 1986-03-14 | Mitsubishi Electric Corp | Microwave feeding circuit |
US4849720A (en) * | 1985-10-02 | 1989-07-18 | Neico Microwave Company | Orthogonal mode tee |
JPH0567902A (en) * | 1991-09-06 | 1993-03-19 | Nec Corp | Transmission/reception equipment |
JPH0685502A (en) * | 1992-08-31 | 1994-03-25 | Nec Corp | Orthogonal polarizer |
JPH06140810A (en) * | 1992-10-22 | 1994-05-20 | Nec Corp | Orthogonal polarizer/branching filter |
GB9504986D0 (en) * | 1995-03-11 | 1995-04-26 | Cambridge Ind Ltd | Improved dual polarisation waveguide probe system |
DE29511273U1 (en) * | 1995-07-12 | 1995-09-21 | Alcatel Kabel Ag | Polarization switch for illuminating an antenna |
US6225875B1 (en) * | 1998-10-06 | 2001-05-01 | Hughes Electronics Corporation | Dual sidewall coupled orthomode transducer having septum offset from the transducer axis |
-
1999
- 1999-05-18 DE DE19922709A patent/DE19922709A1/en not_active Withdrawn
-
2000
- 2000-05-12 US US09/979,411 patent/US6768395B1/en not_active Expired - Lifetime
- 2000-05-12 AU AU43094/00A patent/AU4309400A/en not_active Abandoned
- 2000-05-12 DE DE50005144T patent/DE50005144D1/en not_active Expired - Lifetime
- 2000-05-12 WO PCT/IB2000/000633 patent/WO2000070705A1/en active IP Right Grant
- 2000-05-12 EP EP00922816A patent/EP1183752B1/en not_active Expired - Lifetime
-
2001
- 2001-11-19 NO NO20015644A patent/NO20015644L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1183752A1 (en) | 2002-03-06 |
DE19922709A1 (en) | 2000-12-21 |
WO2000070705A1 (en) | 2000-11-23 |
AU4309400A (en) | 2000-12-05 |
US6768395B1 (en) | 2004-07-27 |
DE50005144D1 (en) | 2004-03-04 |
NO20015644D0 (en) | 2001-11-19 |
NO20015644L (en) | 2002-01-11 |
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