[SI-LIST] Re: Return loss measurement - odd result - why?
- From: "olaney@xxxxxxxx" <olaney@xxxxxxxx>
- To: dotter@xxxxxxxxxxxxx
- Date: Wed, 16 May 2007 22:53:57 GMT
Change the length of the measurement cable. If the ripple spacing
changes, then you are looking at reflections from the unit under test,
i.e. lousy SWR. The ripple peaks and valleys are where the cable
length is an even or odd multiple of lamda/4, causing the reflection to
return in or out of phase at the network analyzer.
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