[SI-LIST] Re: How can we set up in VNA if insertion loss is extremely high, and noise floor is also pretty high in real measurement?
- From: "Orin Laney" <olaney@xxxxxxxxx>
- To: <issue.lu@xxxxxxxxxxx>, "'si-list'" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 8 Jul 2014 21:21:42 -0700
Depends on the VNA architecture, but basically use a lot of averaging to
improve s/n ratio. It improves as root N, e.g. averaging 16 sweeps results
in a 4X (12 dB) improvement. For analog receiver type front ends use narrow
BW and commensurately slow sweep rates.
Orin
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of steve ham
Sent: Tuesday, July 08, 2014 8:55 PM
To: si-list
Subject: [SI-LIST] How can we set up in VNA if insertion loss is extremely
high, and noise floor is also pretty high in real measurement?
How can we set up in VNA if insertion loss is extremely high, and= noise
floor is also pretty high in real measurement? ------From = SIPI
Exchange:http://localhost:50374/Question/Details?id=3D10219'= > ------
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