[SI-LIST] Re: Conversion from dB to ohm
- From: Perry Qu <perry.qu@xxxxxxxxxxx>
- To: whizplayer@xxxxxxxxx
- Date: Fri, 25 Jul 2003 15:55:22 -0400
Bob,
I think transfer impedance should be:
Z12 = 25 * 10 ^ (S21/20), thus for S21 = -60dB, you have Z12 = 0.025 ohm.
Regards
Perry
Bob Patel wrote:
> Hi! The formula for conversion from ohm to dB is :
> Ztrans=25*10^(|S21|/20).
> So if S21=-60dB then Ztrans=25000, what is this value
> in i.e. units is in ohm but do I need to divide it
> with some factor to get in ohms.
> I am trying to convert and it is not corelating.
> Any inputs appreciated.
> Thanks
> Bob
>
> __________________________________
> Do you Yahoo!?
> Yahoo! SiteBuilder - Free, easy-to-use web site design software
> http://sitebuilder.yahoo.com
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> //www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
> or at our remote archives:
> http://groups.yahoo.com/group/si-list/messages
> Old (prior to June 6, 2001) list archives are viewable at:
> http://www.qsl.net/wb6tpu
>
--
Perry Qu
Design & Qualification | 600 March Road
Alcatel Canada | Ottawa, ON K2K 2E6, Canada
DID: (613) 7846720 | FAX: (613) 5993642
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
