[SI-LIST] Re: Five Wire Formula in Wadell
- From: Christian Schuster <cschuste@xxxxxxxxxx>
- To: "Swanson, Dan" <Dan_Swanson@xxxxxxxxxxxx>
- Date: Fri, 2 May 2003 12:08:24 -0400
Hey Dan - thanks a lot!
That looks much more reasonable, i.e. it's a lower impedance
than for the corresponding two wire case.
BTW, maybe you want to let B.C. Wadell know what you found ...
Best regards,
Christian Schuster
IBM
"Swanson, Dan" <Dan_Swanson@xxxxxxxxxxxx>
05/02/2003 11:59 AM
To: Christian Schuster/Watson/IBM@IBMUS, si-list@xxxxxxxxxxxxx
cc:
Subject: RE: [SI-LIST] Five Wire Formula in Wadell
Leading term should be 173/sqrt(Er) and its log10, not ln.
I checked it very quickly for d=10 D=100 Er=1
2D FEM solver =173 ohms, corrected formula =178 ohms.
I don't have my Ref Data book here, its at home.
Dan
Dan Swanson EMAIL: d.swanson@xxxxxxxx
Forem USA PHONE:
978-834-4085
37 South Hunt Road FAX: 978-388-7077
Amesbury, MA 01913
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