Proposed method for controlling and minimizing reflections from a surface

This paper proposes a method whereby the reflection of an electromagnetic wave from a surface can be controlled. The idea is to use a p-n junction as the controlling device. The device is made in such a way that the junction is parallel to the surface upon which the electromagnetic radiation is impinging. If the p region is very narrow the wave will penetrate through it into the depletion region. If the n region is hi conductivity, the wave is reflected from it. Then if the depletion layer width is right for the frequency considered, the reflected wave will interact with the impinging wave to give the desired effect. By changing the bias applied to the junction a tuning effect can be obtained. Detailed analysis of the proposed device is covered in the paper. There are some practical limitations to creating the device described, but the idea and the method of analysis could be useful to individuals interested in creating microwave tuning and control components.