In the last few years I have read several articles about some new materials that supposingly can block all EM radiation. This is quite amazing, for many years this was thought to be impossible.
This can have great effect on how we construct circuits. Being able to completely shield EM fields.
Many of these materials can be applied like a paint or a film. This has made for many other functions with these materials. The amount of blockage with this material can be controlled with a small current thru the material. It can switch and dim the effect. Applying this to paint, the stress on a bridge or a building can be monitored in real time. Along with the starting points for corrosion.
And, when we can achieve a vacuum container free of matter, this will allow the absence of field also…..a true region absent of mass or field. A very singular and unique environment. Some say an impossible environment.
But my question for this thread is a little more practical. Lets construct a thin film cylinder a few inches away from a AM broadcast antenna. Apply steady carrier to antenna. Now audio modulate the film.
Would this produce a single carrier that varied in strength? One raising and lowering line on the spectrum, without side bands?
What you you think would happen? Without the electrical beating.
Could we modulate one skinny signal? Would CW from such a setup, have a bandwidth?
New Form of Modulation?
Re: New Form of Modulation?
