Conductive material with large skin depth? (translucent to RF)

[Plasmateur]

I'm not sure such a material exists, so I'm asking if anyone might be aware of it.

The conductive material would have an effectively large skin depth so a very thin layer of it would still allow some amount of RF to propagate through it.

I'm not sure how cellphone screens work (some kind of capacitive response?). Is this material similar to what I'm looking for?

[duak]

Have a look at Aquadag - it's a colloidal graphite solution that can be applied to a surface like a paint to form a conductive surface.  If this is too leaky, there are various other solutions of metals and other compounds that are used for EMC shielding of non-conductive enclosures.  Henkel comes to mind as a supplier.

I think a metal like Indium is deposited on touch screens to form the conductors.  If it's thin enough it's invisible but still sufficiently conductive.

Cheers,

[Plasmateur]

Sweet! Thank you so much!

[T3sl4co1l]

How conductive?

ITO isn't very.  It's just good enough for passing around signals to TFT transistors or capacitive touch sensing, but not something you can wire a power supply with.

You may also be able to take advantage of polarization and such.  A horizontal mesh screen is transparent one way, reflective the other.

Tim