Re: Shielding for 23 Ghz Wimax? Need help, please.
Posted by
emraware on
URL: https://www.es-forum.com/Shielding-for-23-Ghz-Wimax-Need-help-please-tp2316450p2326189.html
According to Wikipedia, looks like WiMAX is typically lower in frequency (e.g., 2.3 GHz), but the original standard specified up to 66 GHz, so theoretically 23 GHz Wimax is a possibility:
From
http://en.wikipedia.org/wiki/WiMAX:
"There is no uniform global licensed spectrum for WiMAX, however the WiMAX Forum has published three licensed spectrum profiles: 2.3 GHz, 2.5 GHz and 3.5 GHz, in an effort to drive standardisation and decrease cost."
"The original version of the standard on which WiMAX is based (IEEE 802.16) specified a physical layer operating in the 10 to 66 GHz range. 802.16a, updated in 2004 to 802.16-2004, added specifications for the 2 to 11 GHz range."
--- In
[hidden email], Bill Bruno <wbruno@...> wrote:
>
> 23 GHz is very high. I suspect it's a misprint as 2.4 GHz is
> very common. 23 would travel very line of sight, and would
> not penetrate very far beyond your skin (but might cause tingling
> in the skin?)
>
> Grounding is less important at higher frequencies in terms
> of reflecting the signal. But grounding can be important for
> safety, if the curtain gets pushed into an electrical plug or something.
> It's possible for an ungrounded metal object to resonate, so
> that's another reason, but to prevent that you need a low inductance
> path to ground, so no long wires (use a strap about 8 times longer
> than it is wide).
>
> Fabrics and screens have to be very fine to get up to that
> high frequency, but foils will work fine, often all the way up to
> visible light.
>