KR800001060Y1 - Waveguide element with flanges - Google Patents

Abstract

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Description

Flanged waveguide

1 is a perspective view showing a cut example of the waveguide according to the present invention.

2 is a longitudinal cross-sectional view thereof.

3 is a perspective view like the first diagram showing another example of the present invention.

The present invention is directed to an improvement of a flange portion waveguide used as a transmission path for microwaves.

Conventional flange waveguides of this kind consist of a pipe flange and a plate-like flange which extends outwardly in the width direction from the tube body and both ends thereof, all of which are made of a conductive metal material.

Since the whole is made of a conductive metal material as described above, the tube body is composed of a conductor of a waveguide and a support body mechanically supported by the waveguide. In addition, it is common to construct a conductor for electrically connecting the conductor of the waveguide to the flange to the same conductor of another waveguide and a support mechanically supporting it.

However, in the case of such a conventional configuration, since the whole is made of a conductive metal material, the weight of the whole is relatively large and inconvenient to handle. The thickness of the conductor of the waveguide and the conductor for electrically connecting it to the same conductor as other waveguides is small enough, for example, several micrometers or less. On the other hand, when it is considered that it is not necessary to use a conductive metal material in a support body mechanically supported by such a conductor, if an expensive conductive metal material is used as a whole, it is unnecessarily abused, and the whole cannot be easily produced.

Therefore, the present invention proposes a novel flange portion waveguide without the above-described drawbacks, which will be more clearly understood by describing embodiments of the present invention in detail according to the following drawings.

1 shows an example of a flange waveguide according to the present invention as a whole. As can be seen in FIG. 2, the tube body 2 of a cross-sectional rectangle, and a frame with an angle extending outwardly in this width direction integrally with this at both ends of the tube body 2 It includes a flange tube 4 made of a synthetic resin material consisting of a plate flange 3. In this case, the inner dimension of the tube body 2 of this flange part tube body 4 is set to be approximately equal to the inner surface size of the tube body determined by the frequency of use of the conventional flange portion rectangular waveguide made of a conductive metal material as a whole. Therefore, this flange part pipe | tube 4 has a structure similar to the conventional flange part waveguide which manufactures the whole as a conductive metal material. In addition, 7 is a mounting hole which protruded in the flange 3. As shown in FIG.

The conductive layer 5 is attached to the inner surface of the tube body 2 of the flange portion tube 4. In addition, the conductive layer 6 is also attached to the lateral outer side surface of the tube body 2 of the flange 3 in a relationship in which the conductive layer 5 is in contact with each other. In this case, the conductive layers 5 and 6 can be obtained by electroless plating.

Although the above is an example of the flange part waveguide by this invention, according to such a structure, the flange part pipe | tube 4 has the structure of the form similar to the conventional flange part waveguide which manufactures the whole from a conductive metal body. Since the conductive layer 5 is attached to the inner surface of the tube body 2, the conductive layer 5 and the tube body 2 each constitute a conductor of the waveguide and a support that mechanically supports it, and the configuration thereof is a tube body of the conventional flange portion waveguide. Has the same function as In addition, since the conductive layer 6 connected to the conductive layer 5 attached to the inner surface of the tube body 2 is attached to the axially outer side surface of the tube body 2 of the flange 3, the conductive layer 6 and the flange 3 each have a different waveguide conductor. It is evident that a conductor for electrically connecting to the same conductor of and a support for mechanically supporting the same has the same function as the flange of a conventional flange portion waveguide. It is therefore evident that the same function as the conventional flanged waveguide is obtained as a whole.

In this case, the structure in which the function similar to the pipe | tube main body of a flange part waveguide is conventionally obtained is the pipe | tube main body 2 made from synthetic resin, and the conductive layer 5 adhered to the inner surface. Moreover, the structure which functions like the flange of the conventional flange part waveguide may also be the flange 3 manufactured as synthetic resin and the conductive layer 6 attached to it. Therefore, the whole is not uniformly manufactured from a conductive metal material. On the other hand, in general, the synthetic resin material is lighter than the conductive metal material, and the thicknesses of the conductive layers 5 and 6 can be made sufficiently thin, so that the synthetic resin material can be made very light compared to the conventional flanged conduit and is easy to handle. In addition, the conductive metal material used as a whole is smaller than the conventional waveguide of the flange portion, and the synthetic resin material can be easily purchased at a cheaper price than the conductive metal material, and thus can be manufactured at a lower cost as a whole. In addition, the tube 4 can be easily formed by heat-molding it, and the conductive layers 5 and 6 can be easily attached to the tube by, for example, electroless plating, so that the whole body can be easily manufactured as compared with the case of manufacturing a conventional flanged waveguide. There are great advantages such as being able to.

As described above, one example of the present invention has been described. For example, as shown in FIG. 3, the tube body is formed by attaching the flange 8 outwardly in the width direction integrally with the U-shaped cross-section in both sides thereof ( On both ends of the tube 9 and a flange half body 11 formed of a flange half body 10 which extends outwardly in the width direction integrally therewith, a flange half body tube 11 is formed. On the inner surface of the tube body 9, on one face of the flange 8 and on one face of the flange half 10, two flange half-guided waveguide halves having a structure in which the conductive layers 12, 13 and 14 are attached, respectively, are provided. These half bodies 2a and 2b are integrally connected to each other by, for example, a conductive adhesive 15 at a conductive layer 13 position attached to the flange 8. In this case, the tube body 2 and the plan described above with reference to FIGS. 1 and 2, respectively, in a configuration consisting of the flange part tube 11, tube body 9, the flange body, 10, the conductive layer 12, and 14 of the waveguide half body 2a and 2b. The same pipe body 2 ', the flange body 4', the flange 3 ', the conductive layers 5' and 6 'similar to the branch body 4, the flange 3, the conductive layers 5 and 6 are comprised. Therefore, the flange part waveguide 1 'similar to the flange part waveguide 1 shown in FIG. 1 and FIG. 2 can be comprised in the structure which becomes the half body 2a and 2b in this case.

In the flange part waveguide 1 'of this example, the inner surface of the waveguide is constituted by using the conductive layer 12 of the half body 2a and the two conductive layers 12 of the half body 12b. Accordingly, since the inner surface of the conductor of the waveguide does not have uniform continuity, there is a discontinuity in the inner surface of the conductor of the waveguide. For this reason, in the flange waveguide 1 'of this example, it is thought that the electromagnetic field in the tube may be disturbed. However, this discontinuity is only a negligible length of view in cross section, so discontinuity is practically a problem. Even if this is a problem, when the flange portion waveguide 1 'is composed of a waveguide of TE ₁₀ mode, as shown in FIG. 3, the half-fibers 2a and 2b become the conductive layer 13, the so-called H plane (cross section) of the waveguide. What is necessary is just to comprise so that it may exist in the surface parallel to what is called E surface (the surface which comprises a short side as seen from a cross section) through the center of the bore long side.

In the above description, the tube main body 2 or 2 'of the flange tube 4 or 4' has been described as a case where the flange-shaped rectangular waveguide is formed in a rectangular shape, but the tube main body 2 or 2 'of the flange tube 4 or 4' is defined as a circle. Flange circular waveguides can be constructed and other types of deformation changes can be obtained.

Claims (1)

In the waveguide part of the flange part having the pipe body and the flange of the pipe body made of a synthetic resin, the plate-shaped flange which extends outwardly in the width direction from the pipe main body and both ends of the pipe main body as described above and shown in the figure in the main body. And a flange part waveguide made of a synthetic resin, and attached to the inner surface of the tube body of the flange tube and the conductive layers connected to each other on the axial outer surface of the tube body of the flange.