Hi, Kindly find the link below http://www.ultracad.com/articles/diff_z.pdf Regards, Winston -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Tang, Linda (Xin Cai) Sent: Thursday, July 12, 2012 12:59 PM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] the relationship between odd mode impedance,even mode impedance, differential impedance and common impedance Hi all, Who can tell me the relationship between odd mode impedance, even mode impedance, differential impedance and common impedance? And what are the equations? Thanks and best regards, Linda Tang PCB design engineer Engineering, Harman Consumer Room 603, 604 and 704, Tower B, Kingdee Software Park, No. 2 Keji 12th Road South,Hi-tech Park Nan shan,Shenzhen, China, 518057 Phone: +86 755 8636 0549 Fax: +86 755 8636 0599 Email: LindaXinCai.Tang@xxxxxxxxxx Web: www.harman.com [cid:image001.png@01CD6043.1322B750] Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. ------------------------------------------------------------------ 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 Larsen & Toubro Limited www.larsentoubro.com This Email may contain confidential or privileged information for the intended recipient (s). If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system. ------------------------------------------------------------------ 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