[SI-LIST] Re: Where is the Return Current when signal transition from GND reference to POWER reference
- From: steve weir <weirsi@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Wed, 29 Feb 2012 10:12:44 -0800
Syed, please find attached.
Regards,
Steve.
On 2/29/2012 9:27 AM, Syed Bokhari wrote:
> Can you send me these papers?
>
> Thanks
>
>
>
>
>
> Syed Bokhari, Ph.D
>
>
>
>
> Fidus Systems Inc.
>
> syed.bokhari@xxxxxxxx
> 900, Morrison Drive
>
> Tel: (613) 828 - 0063 x 377
> Ottawa, Ontario
>
> Fax:(613) 828-3113
> Canada, K2H 8K7
>
> www.fidus.ca
>
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
> Behalf Of Oh, Dan
> Sent: February-29-12 12:23 PM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: Where is the Return Current when signal transition
> from GND reference to POWER reference
>
> Hi Tesla,
>
> In addition to Eric's paper, I have also written a paper on this subject and
> published in IEEE last year:
> D. Oh, "Plane bounce in high-speed single-ended signaling systems," DesignCon
> 2012.
> If you have access to DesignCon, I also wrote a paper with little more
> details this year:
> D. Oh, "Plane bounce in high-speed single-ended signaling I/O interfaces,"
> EPEPS conference 2011.
> Please let me know if you do not have access for any of these. I can forward
> to you.
>
> Best,
> - Dan Oh
> ___________________________________________
> Dan (KyungSuk) Oh, Ph.D.
> Technical Director of Signal and Power Integrity Rambus Inc.
> (B) 408-462-8363
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
> Behalf Of Bill Martin
> Sent: Wednesday, February 29, 2012 5:08 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: Where is the Return Current when signal transition
> from GND reference to POWER reference
>
> Tesla,
>
> Eric Bogatin has published some analysis on a similar design in his Blog.
>
> It was posted Sept 2010 concerning Cross Talk in Differential Channels
> (return path discontinuities).
>
> Location: http://bethesignal.net/blog/?m=201009
>
> Regards,
> Bill
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
> Behalf Of Tesla
> Sent: Wednesday, February 29, 2012 2:51 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Where is the Return Current when signal transition from
> GND reference to POWER reference
>
> Hi, experts
>
> I have a question that buffled me a long time.
>
> Suppose i have a four layers board. L1:TOP L2:GND L3:POWER L4:Bottom (GND
> and POWER are ground plane and Power plane), there are not any connections
> between L2:GND and L3:POWER. they are independant planes. there is not even a
> capacitor between them.
> If I have a 200mils signal trace run on L1: TOP, Then it transition to
> L4:Bottom layer through a through hole via. The signal trace also run 200mils
> on L4:Bottom. I design the Signal trace as 50ohm.
> Now, if i launch AC signal into signal trace on L1:Top layer. Would i
> mearsure signal between L4:Bottom and L3:POWER at the end of signal trace.
> I believed that there is not voltage between the trace and POWER Plane,
> because the return current can't find a way to transition to L3:POWER.
> But when i simulated the case in HFSS. I get a result that it has S-parameter
> like a 400 mils microstrip from DC to 1Ghz.
> which is correct?
> Hope such silly question not bother you.
>
> Thanks.
>
> Tesla.
>
> ------------------------------------------------------------------
> 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
>
>
>
> ------------------------------------------------------------------
> 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
>
>
> ------------------------------------------------------------------
> 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
>
>
> ------------------------------------------------------------------
> 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
>
>
>
--
Steve Weir
IPBLOX, LLC
150 N. Center St. #211
Reno, NV 89501
www.ipblox.com
(775) 299-4236 Business
(866) 675-4630 Toll-free
(707) 780-1951 Fax
All contents Copyright (c)2012 IPBLOX, LLC. All Rights Reserved.
This e-mail may contain confidential material.
If you are not the intended recipient, please destroy all records
and notify the sender.
------------------------------------------------------------------
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
Other related posts:
