EMI shielding in Space

[GregoireMC]

Hi all,

I would like to know more about EMI Shielding.
- What are the main parameters of an electromagnetic wave (frequency/wave length, ...)?

- What are the typical EM waves received by a space satellite?

- How to calculate the thickness of the shielding?

- The perimeters of holes in the shielding must be much smaller than the wave length, what is the order of magnitude of this difference?

Thanks

Gregoire

 

[IRstuff]

All good questions, but you should consult a qualified engineer or a good textbook. This is not something to decribe in this type of forum. "Space Mission Analysis and Design" would be a good starting point

TTFN

FAQ731-376

 

[GregoireMC]

Thanks, I'll start with that!

 

[Higgler]

here's a link to a cutoff waveguide calculator. It'll at least show you the size of a hole/square hole that starts to limit the frequencies.

http://www.wa1mba.org/WGCalc.htm

The rf loss thru a hole in a metal structure is greater if the hole has a metal tube attached to it.