| 摘要 |
<p>Waveguides for transmitting micro wave signals utilize only a layer of several microns in the wall portions. It is therefor not necessary to use massive amounts of metal in the construction. The waveguide element according to the present invention has a body made of plastics in the form of a rectangular or circular pipe with flanges extending radially from the pipe at both end portions thereof and a thin conductive layer which is continuously provided on the inner surface of the pipe and the outer surface of the flanges. The thin conductive layer is formed by means of, for example, plating the surface of the plastics body with a tin-cobalt alloy. The conductive layer on the inner surface of the pipe performs the transmission of the microwave signal and the conductive layer on the outer surface of the flanges makes the electrically conductive connection together with other waveguide element or any other microwave device.</p> |
