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SNR vs SWR - RF Cafe Forums
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MR.D.
Post subject: SNR vs SWR Posted: Wed Nov 30, 2005 8:44 am
Lieutenant
Joined: Wed Nov 30, 2005 8:22 am
Posts:
2
Hello!!
can you help me???
I find some information
and/or reference about the relation SNR vs SWR in TX system.
tanks for the help!!
Top
IR
Post subject: Posted:
Tue Dec 20, 2005 1:12 am
Site Admin
Joined: Mon Jun
27, 2005 2:02 pm
Posts: 373
Location: Germany
Hello Mr.D;
Actually there is no real connection betweem SNR and SWR in Tx systems.
Of course that the SWR should be good in order to avoid mismatches and
power losses which can cost you in power consumption and siye. But there
is a strong relation between these parameters in Rx systems. The best
example is by doing the matching of an LNA to Gopt (Input matching)
in order acheive the minimal NF. Also when matching is done between
each stage to decrease the return loss to the minimum so that you will
achieve a lower insertion loss and a better SNR.
Hope this helps!
_________________
Best regards,
- IR
Posted 11/12/2012
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