Re: Mirror as ground plane

On Thu, 28 Nov 2024 01:22:13 +1100, Bill Sloman <bill.sloman@ieee.org>
wrote:

On 28/11/2024 12:53 am, legg wrote:

 
Anyone had experience using metalization on glass (mirror)
as a ground plane or shield?

>
None.
>

Any data on conductivity etc?

>
It's difficult to get much below 100ohm per square with metal layers.
You can't get thinner than one atom thick, and while in theory the
microcrystals of metal can offer a circuitious path, you are laying them
down at random.
>
I made the mistake of asking for vacuum deposited layer of carbon with
highish resistance, and got told off by the people who did it.
>
We ended up using a thick film layer of some very resistive metal
oxide-based thick-film ink - about a micron of it.

Ron Wagner used ~dish soap once, to get high resistivity films
on some electrostatic panels.

You can imagine trying to get predictable or durable perforance
that way . . . .

RL