EP0373053A1 - Mechanical support element for a transmission line, especially a triplate line - Google Patents

Mechanical support element for a transmission line, especially a triplate line Download PDF

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Publication number
EP0373053A1
EP0373053A1 EP89403341A EP89403341A EP0373053A1 EP 0373053 A1 EP0373053 A1 EP 0373053A1 EP 89403341 A EP89403341 A EP 89403341A EP 89403341 A EP89403341 A EP 89403341A EP 0373053 A1 EP0373053 A1 EP 0373053A1
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EP
European Patent Office
Prior art keywords
frame
assembly
mechanical holding
holding part
part according
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.)
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Application number
EP89403341A
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German (de)
French (fr)
Inventor
François Devaux
Jean Poitevin
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Thales SA
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Thomson CSF SA
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Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Publication of EP0373053A1 publication Critical patent/EP0373053A1/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/085—Triplate lines

Definitions

  • the present invention relates to a mechanical holding part for microwave transmission line with conductive tape, in particular of the three-plate type.
  • Such holding pieces are known, in particular in the field of air triplate lines. These parts are intended to provide mechanical support for the interior conductor of the line and are arranged in a spacer between the ground planes or between a ground plane and the interior conductor.
  • the object of the present invention is to remedy these drawbacks.
  • It relates to a mechanical holding part for a microwave line of reduced mass and volume integrated into the impedance of the line and ensuring excellent resistance to vibrations and minimized disturbance of propagation in the transmission line.
  • a mechanical holding part for microwave transmission line with conductive tape in particular of the triplate type, characterized in that it is constituted by a frame of dielectric material of rectangular shape intended to receive said line ribbon, said frame having two notches facing each other inside and substantially in the middle of two parallel sides so as to be able to insert said ribbon into said frame, the width and the depth of said notches and the spacing of the sides carrying them being chosen so that the frame substantially encloses said ribbon when its plane is perpendicular to the axis of the ribbon, and in that at least one of the two other sides of the frame comprises centering means and / or attachment cooperating with at least one ground plane against which it rests.
  • Figure 1 partially shows, in perspective, a conductive tape 1 of a microwave transmission line which is mechanically held by holding pieces essentially constituted by frames 2 of dielectric material such as poly (oxyphenylene) such as for example that known under the brand name Noryl.
  • frames 2 have a rectangular shape and have two notches 21 facing each other inside and in the middle of two parallel sides of the frame.
  • the width of the frame and the depth of the notches as well as the width of the notches are provided so that the ribbon 1 can be threaded into the notches when the plane of the frame is substantially perpendicular to the axis of the ribbon.
  • the sides of the frame 2 not having the notches are provided with studs 22 for centering and fixing, preferably two studs per side, designed to engage in corresponding holes 10, 10 ′ of the ground planes 3, 4 (partially shown) to ensure the positioning of the assembly.
  • the length of the sides of the frame carrying the notches is chosen so that, the studs being engaged in the corresponding holes of the ground planes, the other sides of the frame carrying the studs are in contact with the ground planes.
  • these studs suitable shapes such that they can engage with snap-fastening in the holes of the ground planes. In all cases, these studs 22 are formed at the same time as the frame 2.
  • the mechanical holding parts to be used for the three-plate lines must meet the following criteria: - ensure good centering of the line; - maintain vibration; - allow the thermal expansions of the line, particularly if the interior conductive tapes and the ground planes are not made of the same conductive material; - use little dielectric to minimize losses.
  • FIG. 2 represents a variant of a mechanical holding part according to the invention which is in particular well suited to maintaining closed triplate lines. Indeed, in this case, it is not possible to thread closed frames on the line itself closed.
  • the variant of Figure 2 provides that the frame is split into two identical halves 102, 103 symmetrical with respect to the median plane of the two notches.
  • each half-frame comprises half-notches, 121 for the half-frame 102, 124 for the half-frame 103, as well as studs 122 identical to the studs 22 in FIG. 1.
  • the references 125 and 126 designate the faces in look of the half-frames which come into contact after assembly.
  • each half-frame is first fixed to the corresponding ground plane by gluing or with the centering studs 122 by snap-fastening or crimping.
  • the inner conductive tape of the triplate line is then placed on a row of half-frames then the second ground plane with the other row of half-frames is assembled.
  • the assembly of the assembly and in particular of the half-frames opposite can be carried out by any known means.
  • one of the facing faces, here 125 of the half-frame 103, carries a pin 127, however that the facing face 126 of the half-frame 102 includes a corresponding housing for said pin.
  • the assembly can be made integral by snapping on the pin 127 or by gluing.
  • Figure 4 shows another solution.
  • the facing faces 125 ′ and 126 ′ are no longer formed by two parallel planes but by surfaces of complementary section.
  • a V-shaped section and the assembly is carried out by gluing.

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The invention relates to a mechanical support element for a microwave transmission line, especially of the triplate type. The mechanical support element comprises a frame (2), of dielectric material, of rectangular shape. Two parallel sides comprise, on the inside and at the centre, two mutually opposite notches (21), into which there is passed the internal conductive strip (1) of the line. The ground planes are in contact with the other two sides of the frame. These sides carry pins (22) which are engaged into corresponding holes of the ground planes and provide the centring and assembly, for example by crimping. The invention is particularly applied to air triplate lines.

Description

La présente invention se rapporte a une pièce de maintien mécanique pour ligne de transmission hyperfréquence a ruban conducteur, notamment du type triplaque.The present invention relates to a mechanical holding part for microwave transmission line with conductive tape, in particular of the three-plate type.

On connaît de telles pièces de maintien, en parti­culier dans le domaine des lignes triplaques à air. Ces pièces sont destinées à assurer le soutien mécanique du conducteur intérieur de la ligne et sont disposées en entretoise entre les plans de masse ou entre un plan de masse et le conducteur intérieur.Such holding pieces are known, in particular in the field of air triplate lines. These parts are intended to provide mechanical support for the interior conductor of the line and are arranged in a spacer between the ground planes or between a ground plane and the interior conductor.

Des pièces de ce type sont décrits par exemple dans le brevet français N° 1 573 432 ou dans la demande de brevet français N° 88 03682 déposée le 22 mars 1988. Cependant ces pièces ont un volume et une masse importants, ce qui devient un inconvénient majeur lorsque la ligne fonctionne en champ, car ces pièces de maintien perturbent le champ. De plus leur disposition le long de la ligne amène des défauts localisés suivant le pas choisi. Enfin, la quantité de diélectrique utilisée entraîne un certain niveau de perte qu'on ne peut réduire.Parts of this type are described for example in French patent No. 1,573,432 or in French patent application No. 88,03682 filed March 22, 1988. However, these parts have a large volume and mass, which becomes a major drawback when the line operates in the field, because these holding pieces disturb the field. In addition, their arrangement along the line leads to localized defects according to the chosen pitch. Finally, the amount of dielectric used leads to a certain level of loss which cannot be reduced.

La présente invention a pour but de remédier a ces inconvénients.The object of the present invention is to remedy these drawbacks.

Elle a pour objet une pièce de maintien mécanique pour ligne hyperfréquence de masse et de volume réduits intégrée a l'impédance de la ligne et assurant une excellente tenue aux vibrations et une perturbation minimisée de la propagation dans la ligne de transmission.It relates to a mechanical holding part for a microwave line of reduced mass and volume integrated into the impedance of the line and ensuring excellent resistance to vibrations and minimized disturbance of propagation in the transmission line.

Selon l'invention, il est prévu une pièce de maintien mécanique pour ligne de transmission hyperfréquence a ruban conducteur, notamment du type triplaque, caractérisée en ce qu'elle est constituée par un cadre en matériau diélectrique de forme rectangulaire destiné à recevoir ledit ruban de ligne, ledit cadre comportant deux encoches en vis-à-vis à l'intérieur et sensiblement au milieu de deux côtés parallèles de façon à pouvoir insérer ledit ruban dans ledit cadre, la largeur et la profondeur desdites encoches et l'écartement des côtés les portant étant choisis pour que le cadre enserre sensiblement ledit ruban lorsque son plan est perpendiculaire à l'axe du ruban, et en ce qu'au moins un des deux autres côtés du cadre comporte des moyens de centrage et/ou de fixation coopérant avec au moins un plan de masse contre lequel il s'appuie.According to the invention, there is provided a mechanical holding part for microwave transmission line with conductive tape, in particular of the triplate type, characterized in that it is constituted by a frame of dielectric material of rectangular shape intended to receive said line ribbon, said frame having two notches facing each other inside and substantially in the middle of two parallel sides so as to be able to insert said ribbon into said frame, the width and the depth of said notches and the spacing of the sides carrying them being chosen so that the frame substantially encloses said ribbon when its plane is perpendicular to the axis of the ribbon, and in that at least one of the two other sides of the frame comprises centering means and / or attachment cooperating with at least one ground plane against which it rests.

L'invention sera mieux comprise et d'autres caracté­ristiques et avantages apparaîtront à l'aide de la description ci-après et des dessins joints où :

  • - la figure 1 représente des pièces de maintien mécanique selon l'invention en place le long d'un ruban conducteur intérieur de ligne de transmission;
  • - la figure 2 est une vue d'une variante de pièce de maintien selon l'invention; et
  • - les figures 3 et 4 représentent deux modes de réalisation possibles d'un détail de la pièce de la figure 2.
The invention will be better understood and other characteristics and advantages will emerge from the following description and the accompanying drawings, in which:
  • - Figure 1 shows mechanical holding parts according to the invention in place along an inner conductive strip of transmission line;
  • - Figure 2 is a view of a variant of the holding part according to the invention; and
  • - Figures 3 and 4 show two possible embodiments of a detail of the part of Figure 2.

Les mêmes éléments sont désignés par les mêmes références sur toutes les figures.The same elements are designated by the same references in all the figures.

La figure 1 représente partiellement, en perspective, un ruban conducteur 1 d'une ligne de transmission hyper­fréquence qui est maintenu mécaniquement par des pièces de maintien constituées essentiellement par des cadres 2 en matériau diélectrique tel qu'un poly (oxyphénylène) comme par exemple celui connu sous la marque Noryl. Ces cadres 2 ont une forme rectangulaire et comportent deux encoches 21 en vis-à-vis à l'intérieur et au milieu de deux côtés parallèles du cadre. La largeur du cadre et la profondeur des encoches ainsi que la largeur des encoches sont prévues pour que le ruban 1 puisse être enfilé dans les encoches lorsque le plan du cadre est sensiblement perpendiculaire à l'axe du ruban.Figure 1 partially shows, in perspective, a conductive tape 1 of a microwave transmission line which is mechanically held by holding pieces essentially constituted by frames 2 of dielectric material such as poly (oxyphenylene) such as for example that known under the brand name Noryl. These frames 2 have a rectangular shape and have two notches 21 facing each other inside and in the middle of two parallel sides of the frame. The width of the frame and the depth of the notches as well as the width of the notches are provided so that the ribbon 1 can be threaded into the notches when the plane of the frame is substantially perpendicular to the axis of the ribbon.

On supposera ici qu'on considère le cas d'une ligne de transmission du type triplaque à air comportant un ruban conducteur intérieur 1 maintenu à égale distance entre deux plans de masse 3 et 4 parallèles, sans que cela soit en rien limitatif de l'invention.It will be assumed here that we consider the case of a transmission line of the air triplate type comprising an inner conductive strip 1 maintained at equal distance between two parallel ground planes 3 and 4, without this being in any way limiting of the invention.

Les côtés du cadre 2 ne comportant pas les encoches sont munis de plots 22 de centrage et de fixation, de préférence deux plots par côté, prévus pour s'engager dans des trous correspondants 10, 10′ des plans de masse 3, 4 (partiellement représentés) pour assurer le position- nement de l'ensemble. La longueur des côtés du cadre portant les encoches est choisie pour que, les plots étant engagés dans les trous correspondants des plans de masse, les autres côtés du cadre portant les plots soient en contact avec les plans de masse. De préférence, on peut prévoir un sertissage à chaud ou à froid des plots sur lesdits plans de masse. Ceci assure un maintien mécanique efficace et précis de la ligne de transmission. Il est également possible de donner à ces plots des formes adéquates telles qu'ils puissent s'engager avec encliquetage dans les trous des plans de masse. Dans tous les cas, ces plots 22 sont formés en même temps que le cadre 2.The sides of the frame 2 not having the notches are provided with studs 22 for centering and fixing, preferably two studs per side, designed to engage in corresponding holes 10, 10 ′ of the ground planes 3, 4 (partially shown) to ensure the positioning of the assembly. The length of the sides of the frame carrying the notches is chosen so that, the studs being engaged in the corresponding holes of the ground planes, the other sides of the frame carrying the studs are in contact with the ground planes. Preferably, provision may be made for hot or cold crimping of the studs on said ground planes. This ensures efficient and precise mechanical maintenance of the transmission line. It is also possible to give these studs suitable shapes such that they can engage with snap-fastening in the holes of the ground planes. In all cases, these studs 22 are formed at the same time as the frame 2.

Les pièces de maintien mécanique à utiliser pour les lignes triplaques doivent répondre aux critères suivants : - assurer un bon centrage de la ligne ; - assurer le maintien en vibrations ; - permettre les dilatations thermiques de la ligne, particulièrement si les rubans conducteurs intérieurs et les plans de masse ne sont pas constitués du même matériau conducteur ; - utiliser peu de diélectrique pour minimiser les pertes.The mechanical holding parts to be used for the three-plate lines must meet the following criteria: - ensure good centering of the line; - maintain vibration; - allow the thermal expansions of the line, particularly if the interior conductive tapes and the ground planes are not made of the same conductive material; - use little dielectric to minimize losses.

Il est clair que les pièces selon l'invention remplissent tous ces critères. Mais elles apportent de nombreux avantages en plus :
- elles sont auto-adaptées car les deux montants latéraux portant les encoches ont un écartement proche de la largeur du ruban 1 soit λ/4 ;
- les plots 22 assurent le centrage et peuvent permettre de plus la fixation du support par encliquetage ou sertissage ;
- les pièces sont aérées et permettent un bon refroidissement de la ligne.It is clear that the parts according to the invention meet all these criteria. But they bring many advantages in addition:
- They are self-adapting because the two lateral uprights carrying the notches have a spacing close to the width of the strip 1, ie λ / 4;
- The studs 22 provide centering and can also allow the support to be fixed by snap-fastening or crimping;
- the rooms are ventilated and allow good cooling of the line.

La figure 2 représente une variante d'une pièce de maintien mécanique selon l'invention qui est en particulier bien adaptée au maintien de lignes triplaques fermées. En effet, dans ce cas, il n'est pas possible d'enfiler des cadres fermés sur la ligne elle-même fermée. La variante de la figure 2 prévoit que le cadre est scindé en deux moitiés identiques 102, 103 symétriques par rapport au plan médian des deux encoches. Ainsi chaque demi-cadre comporte des demi-encoches, 121 pour le demi-cadre 102, 124 pour le demi-cadre 103, ainsi que des plots 122 identiques aux plots 22 de la figure 1. Les références 125 et 126 désignent les faces en regard des demi-cadres qui viennent en contact après assemblage. Pour l'assemblage, chaque demi-cadre est d'abord fixé sur le plan de masse correspondant par collage ou avec les plots de centrage 122 par encliquetage ou sertissage. Le ruban conducteur intérieur de la ligne triplaque est alors mis en place sur une rangée de demi-cadres puis le deuxième plan de masse avec l'autre rangée de demi-­cadres est assemblé.FIG. 2 represents a variant of a mechanical holding part according to the invention which is in particular well suited to maintaining closed triplate lines. Indeed, in this case, it is not possible to thread closed frames on the line itself closed. The variant of Figure 2 provides that the frame is split into two identical halves 102, 103 symmetrical with respect to the median plane of the two notches. Thus each half-frame comprises half-notches, 121 for the half-frame 102, 124 for the half-frame 103, as well as studs 122 identical to the studs 22 in FIG. 1. The references 125 and 126 designate the faces in look of the half-frames which come into contact after assembly. For assembly, each half-frame is first fixed to the corresponding ground plane by gluing or with the centering studs 122 by snap-fastening or crimping. The inner conductive tape of the triplate line is then placed on a row of half-frames then the second ground plane with the other row of half-frames is assembled.

L'assemblage de l'ensemble et en particulier des demi-cadres en regard peut s'effectuer par tout moyen connu.The assembly of the assembly and in particular of the half-frames opposite can be carried out by any known means.

Les figures 3 et 4 représentent deux solutions possibles à cet effet.Figures 3 and 4 show two possible solutions to this effect.

Sur la figure 3, l'une des faces en regard, ici 125 du demi-cadre 103, porte un pion 127 cependant que la face en regard 126 du demi-cadre 102 comporte un logement corres­pondant pour ledit pion. L'assemblage peut être rendu solidaire par encliquetage du pion 127 ou par collage.In FIG. 3, one of the facing faces, here 125 of the half-frame 103, carries a pin 127, however that the facing face 126 of the half-frame 102 includes a corresponding housing for said pin. The assembly can be made integral by snapping on the pin 127 or by gluing.

La figure 4 représente une autre solution. Les faces en regard 125′ et 126′ ne sont plus formées par deux plans parallèles mais par des surfaces de section complémentaire. Ici par exemple, on a représenté une section en V et l'assemblage est effectué par collage.Figure 4 shows another solution. The facing faces 125 ′ and 126 ′ are no longer formed by two parallel planes but by surfaces of complementary section. Here for example, there is shown a V-shaped section and the assembly is carried out by gluing.

Bien entendu, les exemples de réalisation décrits ne sont nullement limitatifs de l'invention.Of course, the embodiments described are in no way limitative of the invention.

Claims (9)

1. Pièce de maintien mécanique pour ligne de trans­mission hyperfréquence à ruban conducteur, notamment du type triplaque, caractérisée en ce qu'elle est constituée par un cadre (2 ; 102, 103) en matériau diélectrique de forme rectangulaire destiné à recevoir ledit ruban de ligne (1), ledit cadre comportant deux encoches (21) en vis-à-vis à l'intérieur et sensiblement au milieu de deux côtés parallèles de façon à pouvoir insérer ledit ruban dans ledit cadre, la largeur et la profondeur desdites encoches et l'écartement des côtés les portant étant choisis pour que le cadre enserre sensiblement ledit ruban lorsque son plan est perpendiculaire à l'axe du ruban, et en ce qu'au moins un des deux autres côtés du cadre comporte des moyens (22 ; 122) de centrage et/ou de fixation coopérant avec au moins un plan de masse (3, 4) contre lequel il s'appuie.1. Mechanical holding piece for microwave transmission line with conductive tape, in particular of the triplate type, characterized in that it is constituted by a frame (2; 102, 103) of dielectric material of rectangular shape intended to receive said tape. line (1), said frame comprising two notches (21) facing each other inside and substantially in the middle of two parallel sides so as to be able to insert said strip into said frame, the width and the depth of said notches and the spacing of the sides carrying them being chosen so that the frame substantially encloses said ribbon when its plane is perpendicular to the axis of the ribbon, and in that at least one of the two other sides of the frame comprises means (22; 122 ) centering and / or fixing cooperating with at least one ground plane (3, 4) against which it rests. 2. Pièce de maintien mécanique selon la revendication 1, caractérisée en ce que lesdits moyens de centrage sont tels qu'ils permettent le sertissage à chaud ou à froid de ladite pièce sur lesdits plans de masse.2. Mechanical holding part according to claim 1, characterized in that said centering means are such that they allow hot or cold crimping of said part on said ground planes. 3. Pièce de maintien mécanique selon l'une des revendications 1 ou 2, caractérisée en ce que lesdits moyens de centrage et de fixation sont constitués par des plots (22, 122) formés avec ledit cadre (2 ; 102, 103).3. Mechanical holding part according to one of claims 1 or 2, characterized in that said centering and fixing means are constituted by studs (22, 122) formed with said frame (2; 102, 103). 4. Pièce de maintien mécanique selon l'une des revendications 1 à 3 pour ligne triplaque, caractérisée en ce que ledit cadre est formé de deux moitiés identiques (102, 103) symétriques par rapport au plan médian des deux encoches (121, 124), chaque demi-cadre étant fixé au plan de masse correspondant par l'intermédiaire desdits moyens de centrage et de fixation (122) avant assemblage de ladite ligne de transmission.4. Mechanical holding part according to one of claims 1 to 3 for three-plate line, characterized in that said frame is formed of two identical halves (102, 103) symmetrical with respect to the median plane of the two notches (121, 124) , each half-frame being fixed to the corresponding ground plane by means of said centering means and fixing (122) before assembly of said transmission line. 5. Pièce de maintien mécanique selon la revendication 4, caractérisée en ce que les faces (125, 126) des demi-cadres venant en contact après assemblage comportent des moyens de centrage et d'assemblage (125′, 126′; 127) des deux demi-cadres (102, 103).5. Mechanical holding part according to claim 4, characterized in that the faces (125, 126) of the half-frames coming into contact after assembly comprise centering and assembly means (125 ′, 126 ′; 127) of the two half-frames (102, 103). 6. Pièce de maintien mécanique selon la revendication 5, caractérisée en ce que lesdits moyens de centrage et d'assemblage sont constitués par un pion (127) sur l'une des faces coopérant avec un logement dans la face en regard de l'autre demi-cadre.6. Mechanical holding part according to claim 5, characterized in that said centering and assembly means are constituted by a pin (127) on one of the faces cooperating with a housing in the face opposite the other half frame. 7. Pièce de maintien mécanique selon la revendication 6, caractérisée en ce que lesdits pions assurent l'assemblage par encliquetage des deux demi-cadres.7. Mechanical holding part according to claim 6, characterized in that said pins ensure the snap-fit assembly of the two half-frames. 8. Pièce de maintien mécanique selon la revendication 5, caractérisée en ce que lesdits moyens de centrage et d'assemblage consistent en ce que les faces (125′, 126′) des demi-cadres venant en contact après assemblage ont des sections complémentaires non planes et en ce que l'assemblage s'effectue par collage.8. Mechanical holding part according to claim 5, characterized in that said centering and assembly means consist in that the faces (125 ′, 126 ′) of the half-frames coming into contact after assembly have non-complementary sections flat and in that the assembly is carried out by gluing. 9. Pièce de maintien mécanique selon l'une quelconque des revendications 1 à 8, caractérisée en ce que ledit matériau diélectrique du cadre (2; 102, 103) est en Noryl.9. Mechanical holding part according to any one of claims 1 to 8, characterized in that said dielectric material of the frame (2; 102, 103) is made of Noryl.
EP89403341A 1988-12-06 1989-12-01 Mechanical support element for a transmission line, especially a triplate line Withdrawn EP0373053A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815954 1988-12-06
FR8815954A FR2640084A1 (en) 1988-12-06 1988-12-06 MECHANICAL HOLDING PIECE FOR HYPERFREQUENCY TRANSMISSION LINE, PARTICULARLY TYPE TRIPLAQUE

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EP0373053A1 true EP0373053A1 (en) 1990-06-13

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EP89403341A Withdrawn EP0373053A1 (en) 1988-12-06 1989-12-01 Mechanical support element for a transmission line, especially a triplate line

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0478962A2 (en) * 1990-10-05 1992-04-08 Rohde & Schwarz GmbH & Co. KG Microwave-stripline assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB822274A (en) * 1956-08-23 1959-10-21 Gen Electric Co Ltd Improvements in or relating to methods of manufacturing waveguides and waveguide components
GB864016A (en) * 1958-09-17 1961-03-29 Radio Heaters Ltd Improvements in or relating to radio frequency feeders
US3009008A (en) * 1960-06-06 1961-11-14 Okonite Co Air-dielectric cable
DE1218573B (en) * 1962-12-14 1966-06-08 Siemens Ag Coaxial high-frequency cable with a tubular outer conductor made of two half-tubes cross-grooved at a distance
US3487340A (en) * 1968-08-09 1969-12-30 Bell Telephone Labor Inc Holder for mounting elements within a waveguide
FR2585885A1 (en) * 1985-07-30 1987-02-06 Thomson Csf Waveguide device with flat structure and its method of construction

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB822274A (en) * 1956-08-23 1959-10-21 Gen Electric Co Ltd Improvements in or relating to methods of manufacturing waveguides and waveguide components
GB864016A (en) * 1958-09-17 1961-03-29 Radio Heaters Ltd Improvements in or relating to radio frequency feeders
US3009008A (en) * 1960-06-06 1961-11-14 Okonite Co Air-dielectric cable
DE1218573B (en) * 1962-12-14 1966-06-08 Siemens Ag Coaxial high-frequency cable with a tubular outer conductor made of two half-tubes cross-grooved at a distance
US3487340A (en) * 1968-08-09 1969-12-30 Bell Telephone Labor Inc Holder for mounting elements within a waveguide
FR2585885A1 (en) * 1985-07-30 1987-02-06 Thomson Csf Waveguide device with flat structure and its method of construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0478962A2 (en) * 1990-10-05 1992-04-08 Rohde & Schwarz GmbH & Co. KG Microwave-stripline assembly
EP0478962A3 (en) * 1990-10-05 1993-04-21 Rohde & Schwarz Gmbh & Co. Kg Microwave-stripline assembly

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Publication number Publication date
FR2640084A1 (en) 1990-06-08

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