Dear Luke,
Upto 200 MHz I am sure ferrite tile's return loss is better than foam.
Beyond that defenitely foam is better.
Sincerely
K.Balasubramanian
Sr.Engineer, Hardware.
"Luke Turnbull" <[email protected]>
Sent by: [email protected]
03/24/2004 02:38 PM
Please respond to "Luke Turnbull"
To: <[email protected]>, <[email protected]>,
<[email protected]>
cc:
Subject: Re: Semi-anechoic chamber
Only above 1 GHz.
>>> Roger Hsu <[email protected]> 24/03/2004 06:24:09 >>>
Could the semi-anechoic chamber meet the NSA requirements from 30MHz to
1GHz per ANSI C63.4-2000 for full compliance testing which only
constructed with Ferrite Tile? i.e. without Foam Absorber. Does Foam
Absorber play an important role at the lower frequency (30MHz) or it is
only for above 1GHz?
Regards,
Roger
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