On Wed, Jun 27, 2007 at 09:48:13AM +0200, Dave Long wrote: > I think the geometry is key: a short distance to a large vehicle > (pancake geometry) is going to be much better coupled than a long > distance to a small device (spaghetti geometry). (add to that the > fact that vehicles with a metallic body provide their own shielding, > increasing the coupling)
Notice that a phased-array/microwave rectenna approach can work over very long distances (assuming free line of sight), and has overall efficiency of up to 80%. -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE
