VSWR and Return Loss [hlp]

[No one]

Hello Everyone;
What is the relation between VSWR and Return Loss? What is the ideal value of RL?

 

[vfone]

Return Loss (dB) = 20*LOG [(VSWR – 1) / (VSWR + 1)]
I general good value for Return Loss should be lower than -10dB (VSWR <= 2:1)

 

[Azulykit]

The acceptable level depends on your application. In "my" applications -15 dB is "good". If you are dealing with precision horns for satellite antennas "good" is -25 dB.

It DEPENDS............

 

[alan6449]

yaaa..correct..for more detail u can check in wikipedia.for return loss and VSWr

 

[tshah]

Also, you can look at www.microwaves101.com
In the "search" box write VSWR.
It will clear every element of doubt and it has a very good tutorial. good luck!