Sujet : Re: Mirror as ground plane
De : '''newspam''' (at) *nospam* nonad.co.uk (Martin Brown)
Groupes : sci.electronics.designDate : 27. Nov 2024, 15:18:04
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vi79ms$1jd0$1@dont-email.me>
References : 1
User-Agent : Mozilla Thunderbird
On 27/11/2024 13:53, legg wrote:
Anyone had experience using metalization on glass (mirror)
as a ground plane or shield?
Any data on conductivity etc?
At what frequency? Your problem will be mainly making a good physical contact with the mirror. Aluminium has pretty good conductivity but an annoying oxide coat. Gold sputtered mirrors would be easier to solder.
Indium is used for ground planes that you can see though. Radio astronomers tend to use glass with fine copper mesh embedded in it to keep the control room electronics from drowning out natural signals.
-- Martin Brown