Hi Everyone, This month my Technical Tidbit is written by Tim Maloney of Intel for publication on my site. He has devised a very good transmission line equivalent circuit than makes it easy to understand transmission line impedance behavior as a function of line length and termination impedance. Here are the details: Technical Tidbit - August 2012 Novel Equivalent Circuit for Zin of an Arbitrarily Terminated Transmission Line (Written by Timothy J. Maloney) Abstract: A new equivalent circuit for Zin of an arbitrarily terminated transmission line is presented, one which employs only lumped impedances and short and open line stubs in series‐parallel combination. The new picture readily illustrates concepts of line matching and impedance inversion at quarter‐wave frequencies, and also offers insights into transient and off‐resonance response. The link to my home page is: http://emcesd.com/ where the article is linked from the picture at the bottom of the page. The link to the article is: http://emcesd.com/tt2012/tt081012.htm If you want to try an interesting search, type in: high frequency measurements (with or without the s) Doug -- -------------------------------------------------------------- ___ _ Doug Smith \ / ) P.O. Box 60941 ========= Boulder City, NV 89006-0941 _ / \ / \ _ TEL/FAX: 702-570-6108/570-6013 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-----( ) | o | Email: doug@xxxxxxxxxx \ _ / ] \ _ / Web: http://www.dsmith.org -------------------------------------------------------------- ------------------------------------------------------------------ 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