"Reference data for Radio Engineers" lists
the dissipation factor for polymethylmethacrylate (the acrylic monomer
used in i.a. Plexiglas)
as 0.0140 at 1 MHz
and 0.0057 at 3 GHz
This is about two orders of magnitude worse than PTFE or polystyrene.
If acrylic resins are usable for RF applications depends on the
application,
it is not advisable to use Plexiglas as a capacitor dielectric where
RF field strengths are high.
The dielectric may soften and distort quickly.
73/
Karl-Arne
SM0AOM
----Ursprungligt meddelande----
Från: david.kirkby@onetel.net
Datum: 23-05-2008 08:20
Till: "Amps"<amps@contesting.com>
Ärende: [Amps] Anyone know RF properties of Acrylic??
Does anyone know how Acrylic behaves in the presence of RF? Will it
significantly absorb RF up to 2.5 GHz?
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