Take the 1uS pulse of a 2.2 GHz ADS37A pulsed immunity test (at
>20KV/m!); a reverberant chamber's propagation paths will have to
differ by more than 300 meters to ensure the desired pulse width is
preserved at an EUT.
Cortland
On 8/11/2016 11:02 PM, John Woodgate wrote:
Re: [PSES] Immunity testing in a reverb chamber - Stimulus question
I think that's a more generalized version of my response.
With best wishes DESIGN IT IN! OOO – Own Opinions Only
www.jmwa.demon.co.uk <http://www.jmwa.demon.co.uk/>J M Woodgate and
Associates Rayleigh England
Sylvae in aeternum manent.
*From:*Ken Javor [mailto:[email protected]]
*Sent:* Friday, August 12, 2016 3:14 AM
*To:* [email protected]
*Subject:* Re: [PSES] Immunity testing in a reverb chamber - Stimulus
question
It depends on the information BW of the modulation. You can’t have it
so high that the time to bounce around the room is of the same
duration as the information bit rate. But if the modulation were 1
kHz, or 10 kHz, or even 1 MHz, that should be okay.
Ken Javor
Phone: (256) 650-5261
------------------------------------------------------------------------
*From: *"Grasso, Charles" <[email protected]
<mailto:[email protected]>>
*Reply-To: *"Grasso, Charles" <[email protected]
<mailto:[email protected]>>
*Date: *Thu, 11 Aug 2016 22:01:03 +0000
*To: *<[email protected] <mailto:[email protected]>>
*Conversation: *Immunity testing in a reverb chamber - Stimulus question
*Subject: *[PSES] Immunity testing in a reverb chamber - Stimulus question
Hello all,
Given that the electromagnetic environment in a reverb chambers is a
superposition
of plane waves with random phase, is it possible to test the immunity
of a product
to a modulated signal (such as LTE – a 4G comms standard) rather than
a pure sine wave tone?
IMO the modulated nature of the LTE signal gets washed out due to the mode
stirring in the chamber. Am I right?
Best Regards
Charles Grasso
Compliance Engineer
Echostar Communications
(w) 303-706-5467
(c) 303-204-2974
(t) [email protected]
<mailto:[email protected]><mailto:[email protected]>
<mailto:[email protected]>
(e) [email protected]
<mailto:[email protected]><mailto:[email protected]>
<mailto:[email protected]>
(e2) [email protected]
<mailto:[email protected]><mailto:[email protected]>
<mailto:[email protected]>
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