Antenna reception theory
A short while ago, I explained why your Faraday cage doesn't separate E
and H as you claim. Exactly the same explanation applies to this
structure, but with E and H reversed. It locally modifies the E/H ratio
but doesn't separate the field components and it certainly doesn't
remove the E field as you claim.
Roy Lewallen, W7EL
Richard Harrison wrote:
it is just as easy to remove the H-field from the wave as it is to
remove the E-field with a Faraday screen.
To remove the H-field, one sure way is to completely enclose two coils
so they are completely shielded from each other and all electromagnetic
waves. Put the coils in separate metal cans. Put a tiny hole in each
can. Conect one termial of each coil to its end of a coupling capcitor.
Ground the other terminal of each coil.. Ground is the return path for
the coils but it must run on the surfaces of the cans and through the
tiny holes due to skin effect.
Complete shielding removes the H-field as a coupling agent. Only E-field
coupling is provided via the coupling capacitor.
Best regards, Richard Harrison, KB5WZI
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