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Checking VSWR using VNA

 
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oasis4355



Joined: 28 Feb 2006
Posts: 66
Post27 Aug 2008 9:30   Checking VSWR using VNA
Hi,

How do i check the VSWR of a cable using a VNA?

Cheers,
Alex
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RFCMOS



Joined: 05 May 2005
Posts: 153
Helped: 20
Post27 Aug 2008 21:17   Re: Checking VSWR using VNA
Hello,

Modern VNA are able to display VSWR vs freq. Otherwise, you can make S11 measurements and then use the following formula VSWR = (1+S11)/(1-S11) to deduce VSWR.

Hope that helps.

RFCMOS
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