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On 8/19/20 9:12 AM, David Thomson wrote:
On Mon, Aug 17, 2020 at 5:56 PM jimlux <jimlux@xxxxxxxxxxxxx> wrote:
There's no getting around the inverse square law.
Can you be more specific?
Fiber optic cables are an example of getting around the inverse square law.
Electric field transmission along ionized paths are an example of getting
around the inverse square law. Even electrical transmission over a copper
wire can get around the inverse square law.
Yes - But most of the "wireless power transmission" schemes (and I
include fibers and waveguide here) will be subject to inverse square in
the far field.
Are you just assuming that Greg's receiver is receiving pure, unrestrained
radio waves? Or has this been established?
I would say actually that it's working in the near field, not a
propagating wave.
It is very easy to get around the inverse square law when transmitting
along an ionized channel of air molecules. Have you never seen a plasma
globe?
Lightning as well - but for power distribution? Plasma is a pretty
lossy conductor.