[RFI] wireless power at 6.4 MHz?
Tom Rauch
w8ji at contesting.com
Mon Nov 20 05:24:05 EST 2006
Anyone is free to believe anything they want, but the fact
of the matter is if the time varying electric field is taken
to zero the magnetic field also goes to zero. If we allow
the time-vaying magnetic field to couple outside a shield or
screen, the electric field and e-m (radiation) field will
also be there.
When a "shield" is placed over a small loop antenna the only
thing changed is balance of common mode currents. Read the
text carefully at:
http://www.w8ji.com/loop_text.htm
The electric field may be relocated or redistributed, but it
must still very much be there or the system will simply stop
all forms of coupling.
This is why any of these schemes of transfering energy or
data over unshielded lines or from "loop to loop" will also
result in radiation and bother people a long distance away.
73 Tom
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