How to calculate the quality factor of HPF

[GGAPBE96]

how to calculate the quality of a filter

Hello All,

I got the S-parameters of HPF,but I don't know how to calculate the Q factor.
Please tell me the calculation method.

thanks,

 

[mister_rf]

Maybe this help
http://mxh.strefa.pl/pliki/tech/book2006/12.pdf
**broken link removed**
**broken link removed**

 

[GGAPBE96]

mister_rf,

Thank you for helping me.I try it!

 

[jmachado]

Normal very simple rule is Q=F/3dB_BW were:
Q - quality factor
F - central frequency
3dB_BW - 3dB bandwith of your filter

For HPF the quality fact doesn't really apply much since Q is a measure of your filter selectivity, so for HPF it should be quite low, which implies low Q.