#2 works quite well.
Scott McMorrow
Consultant - R&D
Teraspeed Consulting - A Division of Samtec
16 Stormy Brook Rd
Falmouth, ME 04105
(401) 284-1827 Business
http://www.teraspeed.com
On Thu, Aug 20, 2015 at 9:07 PM, jun zhang <zhangjun5960@xxxxxxxxx> wrote:
Hi Experts,
When I do SMA launch optimization, my SMA has characteristic impedance
50ohm, but the trace connected to the SMA has impedance 42.5ohm.
In such a case, when I do the launch optimzation about antipad, GND vias,
do you think it's better to compare S parameters with 50ohms on both ends
or that with 50ohm at SMA end and 42.5ohm at the trace end?
--
best wishes,
Jun Zhang
------------------------------------------------------------------
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 forum is accessible at:
http://tech.groups.yahoo.com/group/si-list
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
