EP0925617B1 - Transition from a waveguide to a strip transmission line - Google Patents

Transition from a waveguide to a strip transmission line Download PDF

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Publication number
EP0925617B1
EP0925617B1 EP97942808A EP97942808A EP0925617B1 EP 0925617 B1 EP0925617 B1 EP 0925617B1 EP 97942808 A EP97942808 A EP 97942808A EP 97942808 A EP97942808 A EP 97942808A EP 0925617 B1 EP0925617 B1 EP 0925617B1
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EP
European Patent Office
Prior art keywords
waveguide
web
stripline
cross
transition
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
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EP97942808A
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German (de)
French (fr)
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EP0925617A1 (en
Inventor
Ewald Schmidt
Klaus VOIGTLÄNDER
Hermann Mayer
Bernhard Lucas
Gerd Dennerlein
Thomas Beez
Roland Müller
Herbert Olbrich
Siegbert Martin
Joachim Dutzi
John Bird
David Neil Dawson
Colin Nash
Brian Prime
Cyril Edward Pettit
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Robert Bosch GmbH
Microchip Technology Caldicot Ltd
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Robert Bosch GmbH
Mitel Semiconductor Ltd
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Publication of EP0925617A1 publication Critical patent/EP0925617A1/en
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Publication of EP0925617B1 publication Critical patent/EP0925617B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
    • H01P5/107—Hollow-waveguide/strip-line transitions

Definitions

  • the present invention relates to a transition from one Waveguide on a strip line according to the preamble of claim 1.
  • a transition from a waveguide to a strip line is from the textbook by Reinmund Hoffmann "Integrated Microwave circuit ", Springer-Verlag 1933, pages 90, 91 known. Like the picture 1.40.b on page 91 of this Can be seen in the publication, points out with the Stripline contacted, stepped web one rectangular cross section and is in as a separate part used the waveguide. This is manufacturing technology known transition from a waveguide to a Strip line is relatively complex.
  • FR 69 008 E describes a transition from a waveguide on a strip line, in which a stepped web has a rectangular cross section in the waveguide. This The shape of the web makes production difficult, especially if the waveguide should be in one piece with the web.
  • the invention is therefore based on the object Transition of the type mentioned at the beginning, which with is as simple as possible to produce.
  • the above task is performed according to the characteristics of the Claim 1 solved in that the cross-sectional shape the web is tapered perpendicular to the longitudinal axis of the waveguide, namely from the waveguide wall in the direction of the stripline and that all steps of the web open the same cross section facing the stripline are rejuvenated.
  • This conically shaped bridge has the advantage that it is by embossing or in a die casting or Cold flow process or plastic injection molding process with subsequent metallization in one piece on a Waveguide wall can be molded.
  • the conical shape of the Steges makes it easier to remove the process tool. At there is a rectangular cross section of the web the danger that this gets caught in the tool and it at Detachment of the tool may result in the web being removed from the Waveguide breaks off.
  • the Substrate 2 with the strip line 3 under the web 5 in the Waveguide 1 are inserted so that the web 5 on the Strip line 3 rests and with this by soldering or Gluing is contacted.
  • the web 5 can also have a conductive ribbon with that ending in front of the waveguide 1 Strip line 3 can be contacted.
  • Figure 1a is a cross section A-A through the waveguide 1 shown.
  • This view shows that the web 5 is a tapering towards the stripline 3 Has cross-sectional shape.
  • Web 5 is each cross-sectional step of the same size Output cross section at the transition to the waveguide wall 4 the same small, the strip line 3 facing Cross-section tapered.
  • a slightly different one 1b shows the cross-sectional shape of the web 5.
  • all cross-sectional levels have two common conical running flanks.
  • the transition from a waveguide 1 shown in FIG. 3 on a strip line 3 has a web 7 with a piecewise continuous cross-sectional transformation.
  • the Conical cross-sectional shape of the web 7 shows that in Figure 3a shows cross section C-C through the waveguide 1.
  • the Cross-sectional transformation of the waveguide could also be done with two opposite waveguide sides outgoing webs 8 and 9 can be realized as the figure 4 in longitudinal section and FIG. 4a in cross section D-D the waveguide 1 can be seen.
  • Both webs 8, 9 can be those in FIGS. 1 to 3 shown or have other cross-sectional shapes. In any case, the two webs 8, 9 towards the strip line 2, 3 tapered (see Figure 4a).
  • the substrate 2 with the Strip line 3 lies in a plane between the two Bars 8 and 9. It is useful, as Figure 4 shows the continue bottom web 9 in the waveguide 1 to the outside, so that a pad 10 for the stripline substrate 2nd arises.
  • the substrate 2 with the strip line 3 can either as shown in Figure 4 between Both webs 8, 9 are inserted or blunt before Waveguide 1 ends.
  • Suitable for mass production and inexpensive Manufacturing process for the waveguide with its web or its webs offer embossing, die casting or Cold flow process or a plastic injection molding process with subsequent metallization.
  • offers the conical for these manufacturing processes Cross-sectional shape of the web or webs special Benefits.
  • the waveguide can either together with the web or the webs as a one-piece body getting produced. It can also be useful Assemble waveguide from two parts, each of which can be provided with a web. Of course, every jetty can can also be manufactured as a separate part and subsequently in the waveguide inserted and fixed in it.
  • the conical cross-sectional shape of the web brings a relative wide contact surface for fixing to a waveguide wall with yourself. This has an advantageous effect on the fixation of the Bridges z. B. by gluing, soldering or screwing.

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  • Waveguides (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Decoration Of Textiles (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Ladders (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

In order for it to be possible to manufacture a transition with a cost-effective stamping or diecasting or cold-molding process or with a plastic injection-molding process with subsequent metal plating, at least one ridge situated in the waveguide, which reduces the waveguide cross section in the direction of the stripline, has a cross section which tapers conically in the direction of the stripline.

Description

Stand der TechnikState of the art

Die vorliegende Erfindung betrifft einen Übergang von einem Hohlleiter auf eine Streifenleitung gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a transition from one Waveguide on a strip line according to the preamble of claim 1.

Ein Übergang von einem Hohlleiter auf eine Streifenleitung ist aus dem Lehrbuch von Reinmund Hoffmann "Integrierte Mikrowellenschaltung", Springer-Verlag 1933, Seiten 90, 91 bekannt. Wie dem Bild 1.40.b auf der Seite 91 dieser Druckschrift zu entnehmen ist, weist der mit der Streifenleitung kontaktierte, gestufte Steg einen rechteckigen Querschnitt auf und ist als separates Teil in den Hohlleiter eingesetzt. Fertigungstechnisch ist dieser bekannte Übergang von einem Hohlleiter auf eine Streifenleitung relativ aufwendig.A transition from a waveguide to a strip line is from the textbook by Reinmund Hoffmann "Integrated Microwave circuit ", Springer-Verlag 1933, pages 90, 91 known. Like the picture 1.40.b on page 91 of this Can be seen in the publication, points out with the Stripline contacted, stepped web one rectangular cross section and is in as a separate part used the waveguide. This is manufacturing technology known transition from a waveguide to a Strip line is relatively complex.

Bei einem aus Patent Abstracts of Japan, Vol. 17, No. 434, E 1412, 11.08.1993 bekannten Übergang von einem Hohlleiter auf eine Streifenleitung ist im Hohlleiter ein Steg mit einer stückweise stetigen Höhenänderung angeordnet. Dabei ist die Querschnittsform des Stegs senkrecht zur Hohlleiter-Längsachse verjüngt.In one from Patent Abstracts of Japan, Vol. 17, No. 434, E 1412, 11.08.1993 known transition from a waveguide a strip line is a web with a in the waveguide arranged piecewise steady change in height. Here is the Cross-sectional shape of the web perpendicular to the longitudinal axis of the waveguide rejuvenated.

Aus der FR 69 008 E geht ein Übergang von einem Hohlleiter auf eine Streifenleitung hervor, bei dem ein gestufter Steg im Hohlleiter einen rechteckigen Querschnitt aufweist. Diese Form des Steges erschwert die Herstellung, vor allem wenn der Hohlleiter mit dem Steg einstückig sein soll. FR 69 008 E describes a transition from a waveguide on a strip line, in which a stepped web has a rectangular cross section in the waveguide. This The shape of the web makes production difficult, especially if the waveguide should be in one piece with the web.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Übergang der eingangs genannten Art anzugeben, der mit möglichst geringem Aufwand herstellbar ist.The invention is therefore based on the object Transition of the type mentioned at the beginning, which with is as simple as possible to produce.

Vorteile der ErfindungAdvantages of the invention

Die genannte Aufgabe wird gemäß den Merkmalen des Patentanspruchs 1 dadurch gelöst, daß die Querschnittsform des Steges senkrecht zur Hohlleiter-Längsachse verjüngt ist, und zwar von der Hohlleiterwand ausgehend im Richtung auf die Streifenleitung hin, und daß alle Stufen des Steges auf denselben der Streifenleitung zugewandten Querschnitt verjüngt sind. Dieser konisch geformte Steg hat den Vorteil, daß er durch Prägen oder in einen Druckguß- oder Kaltfließprozeß oder Kunststoff-Spritzgußprozeß mit anschließender Metallisierung einstückig an einer Hohlleiterwand angeformt werden kann. Die konische Form des Steges erleichtert ein Abnehmen des Prozeßwerkzeuges. Bei einem rechteckigen Querschnitt des Steges besteht nämlich die Gefahr, daß dieser im Werkzeug hängen bleibt und es beim Ablösen des Werkzeugs evtl. dazu kommt, daß der Steg von der Hohlleiterwand abbricht. Durch die konische Formung des Steges gewinnt diese eine relativ größe Ansatzfläche an der Hohlleiterwand, so daß die Verbindung zwischen der Hohlleiterwand und dem Steg eine hohe Festigkeit erlangt. Das gilt natürlich auch, wenn der Steg als separates Teil hergestellt worden ist und im Nachhinein in den Hohlleiter eingesetzt und mit diesem verlötet, verklebt oder verschraubt wird.The above task is performed according to the characteristics of the Claim 1 solved in that the cross-sectional shape the web is tapered perpendicular to the longitudinal axis of the waveguide, namely from the waveguide wall in the direction of the stripline and that all steps of the web open the same cross section facing the stripline are rejuvenated. This conically shaped bridge has the advantage that it is by embossing or in a die casting or Cold flow process or plastic injection molding process with subsequent metallization in one piece on a Waveguide wall can be molded. The conical shape of the Steges makes it easier to remove the process tool. At there is a rectangular cross section of the web the danger that this gets caught in the tool and it at Detachment of the tool may result in the web being removed from the Waveguide breaks off. Due to the conical shape of the Steges gains a relatively large attachment area on the Waveguide wall, so that the connection between the Waveguide wall and the web attain a high strength. Of course, this also applies if the web is a separate part has been produced and afterwards in the waveguide used and soldered, glued or is screwed.

Gemäß den Unteransprüchen kann sowohl an der Hohlleiterwand oberhalb der Streifenleitung als auch an der Hohlleiterwand unterhalb der Streifenleitung ein Steg vorhanden sein. According to the subclaims, both on the waveguide wall above the stripline as well as on the waveguide wall there is a web below the stripline.

Die genannte konstruktive Gestaltung des Überganges ermöglicht mit relativ geringem Aufwand eine Massenfertigung, so daß ein solcher Übergang vorteilhafterweise in einem Abstandradargerät für Kraftfahrzeuge eingesetzt werden kann, um darin z. B. einen Gunn-Oszillator an eine Streifenleitung ankoppeln zu können.The aforementioned constructive design of the transition enables a with relatively little effort Mass production, so such a transition advantageously in a distance radar device for Motor vehicles can be used to z. B. one To be able to couple the Gunn oscillator to a stripline.

Beschreibung von AusführungsbeispielenDescription of exemplary embodiments

Anhand mehrerer in der Zeichnung dargestellter Ausführungsbeispiele wird nachfolgend die Erfindung näher erläutert. Es zeigen:

  • Figur 1 einen Längsschnitt durch einen Übergang von einem Hohlleiter auf eine Streifenleitung mit einem gestuften Steg,
  • Figur 1a, 1b zwei mögliche konische Querschnittsformungen des Steges,
  • Figur 2 einen Längsschnitt durch einen Übergang mit einem durchgehend stetigen Steg,
  • Figur 2a einen Querschnitt durch den Übergang nach Figur 2,
  • Figur 3 einen Übergang mit einem gestuft stetigen Steg,
  • Figur 3a einen Querschnitt durch den Übergang nach Figur 3,
  • Figur 4 einen Übergang mit zwei Stegen und
  • Figur 4a einen Querschnitt durch den Übergang nach Figur 4.
    • The invention is explained in more detail below with the aid of several exemplary embodiments shown in the drawing. Show it:
  • FIG. 1 shows a longitudinal section through a transition from a waveguide to a strip line with a stepped web,
  • 1a, 1b two possible conical cross-sectional shapes of the web,
  • FIG. 2 shows a longitudinal section through a transition with a continuously continuous web,
  • FIG. 2a shows a cross section through the transition according to FIG. 2,
  • FIG. 3 shows a transition with a stepped, continuous web,
  • FIG. 3a shows a cross section through the transition according to FIG. 3,
  • Figure 4 shows a transition with two webs and
  • 4a shows a cross section through the transition according to FIG. 4.

    • In der Figur 1 ist ein Querschnitt durch einen Hohlleiter 1, der auf eine von einem Substrat 2 getragene Streifenleitung 3 übergeht, dargestellt. Für den Übergang von dem Hohlleiter 1 auf die Streifenleitung 3 befindet sich an der der Streifenleitung 3 gegenüberliegenden Hohlleiterwand 4 ein Steg 5, der in Längsrichtung des Hohlleiters 1 verläuft, und dessen Höhe in Stufen zur Streifenleitung 3 hin zunimmt. Dieser eine Querschnittstransformation bildende Steg 5 ist an einer Stelle, die den geringsten Hohlleiterquerschnitt bildet, mit der Streifenleitung 3 kontaktiert. Die Kontaktierung kann auf verschiedene Arten erfolgen. Beispielsweise kann, wie der Zeichnung zu entnehmen ist, das Substrat 2 mit der Streifenleitung 3 unter den Steg 5 in den Hohlleiter 1 hineingesetzt werden, so daß der Steg 5 auf der Streifenleitung 3 aufliegt und mit dieser durch Löten oder Kleben kontaktiert wird. Auch kann der Steg 5 über ein leitendes Bändchen mit der vor dem Hohlleiter 1 endenden Streifenleitung 3 kontaktiert werden.1 shows a cross section through a waveguide 1, the on a strip line carried by a substrate 2 3 passes. For the transition from the waveguide 1 on the stripline 3 is on the Strip line 3 opposite waveguide wall 4 Web 5, which runs in the longitudinal direction of the waveguide 1, and whose height increases in steps towards the strip line 3. This is a web 5 forming a cross-sectional transformation at a point that has the smallest waveguide cross section forms, contacted with the stripline 3. The Contacting can take place in different ways. For example, as can be seen in the drawing, the Substrate 2 with the strip line 3 under the web 5 in the Waveguide 1 are inserted so that the web 5 on the Strip line 3 rests and with this by soldering or Gluing is contacted. The web 5 can also have a conductive ribbon with that ending in front of the waveguide 1 Strip line 3 can be contacted.

    In der Figur 1a ist ein Querschnitt A-A durch den Hohlleiter 1 dargestellt. Diese Ansicht zeigt, daß der Steg 5 eine sich auf die Streifenleitung 3 hin konisch verjüngende Querschnittsform aufweist. Bei dem in Figur la dargestellten Steg 5 ist jede Querschnittsstufe von demselben großen Ausgangsquerschnitt am Übergang zur Hohlleiterwand 4 auf denselben kleinen, der Streifenleitung 3 zugewandten Querschnitt konisch verjüngt. Eine etwas andere Querschnittsformung des Steges 5 zeigt die Figur 1b. Hier weisen alle Querschnittsstufen zwei gemeinsame konisch verlaufende Flanken auf.In Figure 1a is a cross section A-A through the waveguide 1 shown. This view shows that the web 5 is a tapering towards the stripline 3 Has cross-sectional shape. In the illustrated in Figure la Web 5 is each cross-sectional step of the same size Output cross section at the transition to the waveguide wall 4 the same small, the strip line 3 facing Cross-section tapered. A slightly different one 1b shows the cross-sectional shape of the web 5. Here all cross-sectional levels have two common conical running flanks.

    Bei dem in Figur 2 dargestellten Ausführungsbeispiel befindet sich in dem Hohlleiter 1 ein Steg 6, dessen Höhe stetig zur Streifenleitung 3 hin zunimmt. Dieser stetige Querschnittsübergang kann entweder einen linearen (durchgezogene Linie) oder einen nicht linearen (strichlierte Linie) Verlauf haben. Der in der Figur 2a dargestellte Querschnitt B-B durch den Hohlleiter 1 zeigt wiederum die konische Querschnittsformung des Steges 6.In the embodiment shown in Figure 2 there is a web 6 in the waveguide 1, the height thereof increases steadily towards the strip line 3. This steady Cross-section transition can either be a linear (solid line) or a non-linear one (dashed line) have course. The in Figure 2a shown cross section B-B through the waveguide 1 again the conical cross-sectional shape of the web 6.

    Der in Figur 3 dargestellte Übergang von einem Hohlleiter 1 auf eine Streifenleitung 3 weist einen Steg 7 mit einer stückweise stetigen Querschnittstransformation auf. Die konische Querschnittsformung des Steges 7 zeigt der in Figur 3a dargestellte Querschnitt C-C durch den Hohlleiter 1.The transition from a waveguide 1 shown in FIG. 3 on a strip line 3 has a web 7 with a piecewise continuous cross-sectional transformation. The Conical cross-sectional shape of the web 7 shows that in Figure 3a shows cross section C-C through the waveguide 1.

    Abweichend von den in der Zeichnung dargestellten Formen für den Steg im Hohlleiter sind auch andere beliebige Formen des Steges zur Realisierung optimaler Deviating from the shapes shown in the drawing for the web in the waveguide are also any other forms of Bridges for realizing optimal

    Querschnittstransformationen möglich. Die Querschnittstransformation des Hohlleiters könnte auch mit zwei von einander gegenüberliegenden Hohlleiterseiten ausgehenden Stegen 8 und 9 realisiert werden, wie der Figur 4 im Längsschnitt und der Figur 4a im Querschnitt D-D durch den Hohlleiter 1 zu entnehmen ist.Cross-section transformations possible. The Cross-sectional transformation of the waveguide could also be done with two opposite waveguide sides outgoing webs 8 and 9 can be realized as the figure 4 in longitudinal section and FIG. 4a in cross section D-D the waveguide 1 can be seen.

    Beide Stege 8, 9 können die in den Figuren 1 bis 3 dargestellten oder auch andere Querschnittsformen haben. Jedenfalls sind beide Stege 8,9 zur Streifenleitung 2, 3 hin konisch verjüngt (vgl. Figur 4a). Das Substrat 2 mit der Streifenleitung 3 liegt in einer Ebene zwischen beiden Stegen 8 und 9. Es ist zweckmäßig, wie Figur 4 zeigt, den unteren Steg 9 im Hohlleiter 1 nach außen fortzuführen, so daß eine Auflage 10 für das Streifenleitungssubstrat 2 entsteht. Das Substrat 2 mit der Streifenleitung 3 kann entweder entsprechend der Darstellung in Figur 4 zwischen beide Stege 8, 9 eingefügt werden oder auch stumpf vor dem Hohlleiter 1 enden.Both webs 8, 9 can be those in FIGS. 1 to 3 shown or have other cross-sectional shapes. In any case, the two webs 8, 9 towards the strip line 2, 3 tapered (see Figure 4a). The substrate 2 with the Strip line 3 lies in a plane between the two Bars 8 and 9. It is useful, as Figure 4 shows the continue bottom web 9 in the waveguide 1 to the outside, so that a pad 10 for the stripline substrate 2nd arises. The substrate 2 with the strip line 3 can either as shown in Figure 4 between Both webs 8, 9 are inserted or blunt before Waveguide 1 ends.

    Für eine Massenproduktion geeignete und kostengünstige Fertigungsverfahren für den Hohlleiter mit samt seinem Steg bzw. seinen Stegen bieten sich Prägen, Druckguß- oder Kaltfließprozeß oder ein Kunststoff-Spritzgußprozeß mit anschließender Metallisierung an. Wie einleitend dargelegt, bietet für diese Herstellungsprozesse die konische Querschnittsform des Steges bzw. der Stege besondere Vorteile. Mit diesen Verfahren kann der Hohlleiter entweder mitsamt dem Steg bzw. den Stegen als einstückiger Körper hergestellt werden. Es kann auch zweckmäßig sein, den Hohlleiter aus zwei Teilen zusammenzusetzen, von denen jeder mit einem Steg versehen sein kann. Natürlich kann jeder Steg auch als separates Teil gefertigt werden und nachträglich in den Hohlleiter eingesetzt und darin fixiert werden. Die konische Querschnittsform des Steges bringt eine relativ breite Auflagefläche zum Fixieren an einer Hohlleiterwand mit sich. Das wirkt sich vorteilhaft auf die Fixierung des Steges z. B. mittels Kleben, Löten oder Schrauben aus.Suitable for mass production and inexpensive Manufacturing process for the waveguide with its web or its webs offer embossing, die casting or Cold flow process or a plastic injection molding process with subsequent metallization. As stated in the introduction, offers the conical for these manufacturing processes Cross-sectional shape of the web or webs special Benefits. With these methods, the waveguide can either together with the web or the webs as a one-piece body getting produced. It can also be useful Assemble waveguide from two parts, each of which can be provided with a web. Of course, every jetty can can also be manufactured as a separate part and subsequently in the waveguide inserted and fixed in it. The conical cross-sectional shape of the web brings a relative wide contact surface for fixing to a waveguide wall with yourself. This has an advantageous effect on the fixation of the Bridges z. B. by gluing, soldering or screwing.

    Claims (4)

    1. Junction from a waveguide (1) to a stripline (2, 3), in which case the waveguide (1) has at least one web (5, 6, 7, 8, 9) in the junction region, which web (5, 6, 7, 8, 9) originates from a waveguide wall opposite the stripline (2, 3) and makes contact with the stripline (2, 3), in which case the height of the web (5) increases, along the waveguide longitudinal axis, in steps towards the stripline (2, 3), characterized in that the cross-sectional shape of the web (5) tapers at right angles to the waveguide longitudinal axis, to be precise, starting from the waveguide wall, in the direction of the stripline (2, 3), and in that all the steps of the web (5) are tapered to the same cross section facing the stripline (2, 3).
    2. Junction according to Claim 1, characterized in that there is a web (8, 9) not only on the waveguide wall located above the stripline (2, 3), but also on the waveguide wall located underneath the stripline (2, 3).
    3. Junction according to one of Claims 1 or 2, characterized in that the stripline (2, 3) projects into the waveguide (11).
    4. Junction according to one of Claims 1 or 2, characterized in that the stripline (2, 3) ends in front of the waveguide (1).
    EP97942808A 1996-09-11 1997-09-06 Transition from a waveguide to a strip transmission line Expired - Lifetime EP0925617B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19636890A DE19636890C1 (en) 1996-09-11 1996-09-11 Transition from a waveguide to a strip line
    DE19636890 1996-09-11
    PCT/DE1997/001979 WO1998011621A1 (en) 1996-09-11 1997-09-06 Transition from a waveguide to a strip transmission line

    Publications (2)

    Publication Number Publication Date
    EP0925617A1 EP0925617A1 (en) 1999-06-30
    EP0925617B1 true EP0925617B1 (en) 2000-12-06

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    Application Number Title Priority Date Filing Date
    EP97942808A Expired - Lifetime EP0925617B1 (en) 1996-09-11 1997-09-06 Transition from a waveguide to a strip transmission line

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    US (1) US6265950B1 (en)
    EP (1) EP0925617B1 (en)
    JP (1) JP2001505724A (en)
    AT (1) ATE198011T1 (en)
    DE (2) DE19636890C1 (en)
    ES (1) ES2155262T3 (en)
    WO (1) WO1998011621A1 (en)

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    CN106374183A (en) * 2016-09-23 2017-02-01 浙江申吉钛业股份有限公司 Apparatus and method for preparing flange bent waveguide tube by forward cold extrusion method
    WO2023165756A1 (en) 2022-03-04 2023-09-07 Robert Bosch Gmbh Device for a transition of a radio-frequency connection between a stripline connection and a waveguide, radio-frequency arrangement and radar system

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    WO1998011621A1 (en) 1998-03-19
    DE19636890C1 (en) 1998-02-12
    US6265950B1 (en) 2001-07-24
    ES2155262T3 (en) 2001-05-01
    EP0925617A1 (en) 1999-06-30
    ATE198011T1 (en) 2000-12-15
    JP2001505724A (en) 2001-04-24
    DE59702738D1 (en) 2001-01-11

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