Appendix 13C: Frequency and Polarization Transformer (10–1000 GHz): Interaction of a Whistler Wave with a Collapsing Plasma in a Cavity*
13C.1Introduction
The electric power industry extensively uses voltage transformers of high transformation ratio. If such devices for transforming frequencies with high transformation ratio are available, one can use off-the-shelf inexpensive sources and transform the frequency to the level desired by the application. It is well known that the wave number k of an electromagnetic wave is conserved in a time-varying but space-invariant medium. This property can be used to construct a frequency transformer using a collapsing magnetoplasma medium in a cavity. The time ...
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