Sorry, here's the paper. -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Elya B. Joffe Sent: Thursday, March 01, 2012 5:39 AM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Re: Where is the Return Current when signal transition from GND reference to POWER reference No attachment??? Elya On 3/1/2012 2:12 AM, steve weir wrote: > 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 1009 >> >> 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 >> >> >> > ------------------------------------------------------------------ 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