[time-nuts] Poor man's choke ring

[Bruce Griffiths]

Neville Michie wrote:
> If I understand the choke ring antenna it is to remove signals 
> propagating across the ground plane.
> Now if there was a very lossy layer on the ground plane any signals 
> propagating across it would be attenuated.
> For instance, if you find a plastic that melts in your microwave, a 
> sheet of that plastic over your ground plane should work.
> Or do plastics that attenuate enough not exist?
>
> cheers, Neville Michie
>
Trimble produce an antenna with a dissipative ground plane.

Bruce