Sujet : Re: Mirror as ground plane
De : bill.sloman (at) *nospam* ieee.org (Bill Sloman)
Groupes : sci.electronics.designDate : 27. Nov 2024, 15:22:13
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vi79us$1jfk$1@dont-email.me>
References : 1
User-Agent : Mozilla Thunderbird
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.
-- Bill Sloman, Sydney