Passive EMI shielding?

ROBSCIX · 5th January 2007, 05:29 PM

Hello, If I had a small circuit I would like to shield from EMI, what could I use to do this? I don;t want some $100 solution. Thx for the info guys.

XEAGLEKEEPER · 6th January 2007, 03:41 AM

A earth grounded copper mesh or sheet around the circuit.should do the trick

unclejed613 · 6th January 2007, 04:01 AM

if you need a small shielded box, you could make it out of unetched pc board material, and solder the edges together....

ROBSCIX · 6th January 2007, 04:40 PM

Somebody was telling me that anti-static bag-the type you get components and PC cards in would work but I am not sure. Any opinions on that?

tvi · 6th January 2007, 08:56 PM

anti-static bag?

Try sticking your mobile phone in one and watch the signal strengh meter, then ground the bag an see what happens.

Regards
James

ROBSCIX · 6th January 2007, 09:13 PM

What are you getting at that the gnd is the key to any sheilding? well I guess it would be. Thx

5th January 2007, 05:29 PM	#1
ROBSCIX diyAudio Member Join Date: Oct 2004	Passive EMI shielding? Hello, If I had a small circuit I would like to shield from EMI, what could I use to do this? I don;t want some $100 solution. Thx for the info guys.

6th January 2007, 03:41 AM	#2
XEAGLEKEEPER diyAudio Member Join Date: Jan 2006 Location: central Iowa	A earth grounded copper mesh or sheet around the circuit.should do the trick __________________ Ret. USAF... AKA- Avionic * Solder slinger for hire...*

6th January 2007, 04:01 AM	#3
unclejed613 diyAudio Member Join Date: Dec 2006	if you need a small shielded box, you could make it out of unetched pc board material, and solder the edges together.... __________________ Vintage Audio and Pro-Audio repair ampz(removethis)@sohonet.net spammer trap: http://www1284177414881.v-dc.net/

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6th January 2007, 04:40 PM	#4
ROBSCIX diyAudio Member Join Date: Oct 2004	Somebody was telling me that anti-static bag-the type you get components and PC cards in would work but I am not sure. Any opinions on that?

6th January 2007, 08:56 PM	#5
tvi diyAudio Member Join Date: Apr 2001 Location: Moonee Ponds, Vic, Australia	anti-static bag? Try sticking your mobile phone in one and watch the signal strengh meter, then ground the bag an see what happens. Regards James

6th January 2007, 09:13 PM	#6
ROBSCIX diyAudio Member Join Date: Oct 2004	What are you getting at that the gnd is the key to any sheilding? well I guess it would be. Thx

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