Jun,
You may find my DesignCon2015 paper and recent White Paper located on my web
site useful.
"Practical Method for Modeling Conductor Surface Roughness Using Close
Packing of Equal Spheres"
http://lamsimenterprises.com/Copyright2.html
AND
"Practical Method for Modeling Conductor Surface Roughness Using The
Cannonball Stack Principle White Paper"
http://lamsimenterprises.com/Copyright.html
Bert Simonovich
Signal/Power Integrity Practitioner | Backplane Specialist | Founder
LAMSIM Enterprises Inc.
Web Site: http://lamsimenterprises.com
Blog: http://blog.lamsimenterprises.com/
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of jun zhang
Sent: September-07-15 11:39 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] surface roughness
Hi experts,
For RTF foil type and maybe the peak-to-valley value is close to 6-8um, how
can I derive the HFSS acceptable parameters Nodule radius and Huray surface
ratio?
if I don't use HFSS, how can I according to above information to derive the
Huray model (sphere radius, numbers, Huray surface ratio) for calculating
insertion loss accurately?
Thanks a lot
--
best wishes,
Jun Zhang
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