[SI-LIST] Re: di/dt transfer function measurement with Network Analyzer

Junfeng,

VNA's are frequency domain devices.  You can use them to evaluate 
responses to sometimes very high frequencies.  But, you have to 
design the test vehicles properly, including the launches.  You need 
to consider the calibration method that you will use when designing 
the fixture.

Steve.
At 03:29 AM 9/22/2006, jun feng wrote:
>Hello everyone,
>     I have some basic questions on the measurement with Network analyzer.
>Please refer to the attached file for detials.
>
>     Basically, we can see it as a two port network: input and output. What I
>want is to inject some current transient with very fast slope at the
>input(incident), and measure the current transient at the
>output(transmitted). By doing this, I can see how good the circuit or DUT
>can reject the high frequency di/dt noise, which is proportional to the EMI
>as all you guys  know.
>     My questions here are :
>     1.  Is it possible ?
>     2.  How can I inject fast transient current ? ( I have current probe
>-CT6 in my lab)
>     3.  How to set it up ?
>
>hope you can help me out , thanks a lot !
>
>
>Junfeng
>--
>Junfeng Zhou
>
>K.U.Leuven, Dept. Elektrotechniek ESAT-MICAS
>Kasteelpark Arenberg 10, Room 91.33
>B-3001 Heverlee
>Belgium
>
>Tel: +32 16 321169
>Fax: +32 16 321975
>Web: http://www.esat.kuleuven.be/micas/
>
>
>
>-- Binary/unsupported file stripped by Ecartis --
>-- Type: application/pdf
>-- File: didt TF.pdf
>
>
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