[PSES] RFID antenna parasitic resonances affect operation

[Doug Smith]

Hi Everyone, I just posted my Technical Tidbit for September 2013 on how parasitic resonances in ane RFID antenna can affect RFID operation and how to measure these parasitic resonances as well as an example. Technical Tidbit - September 2013 Parasitic Resonance in an RFID ~10 MHz Antenna - Measurement and Characterization Abstract: Low frequency RFID transmitting antennas often have self-resonances at much higher frequencies than the frequency of operation that can cause problems, such as unintended radiated emissions. Such a case is described. If you have trouble following the links below, please contact me. XO Communications had a nearly one day outage yesterday and not all browsers may get access yet. On my computer this afternoon Safari, Opera, and Google Chrome worked but Firefox did not (yes, I cleared the cache and tried reloading). link to the article:  http://emcesd.com/tt2013/tt090813.htm (If your Windows computer adds a "[1}" to the link, you need to manually remove it.) Link to the home page of the site: http:emcesd.com 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: d...@dsmith.org \ _ / ] \ _ / Web: http://www.dsmith.org -------------------------------------------------------------- - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com>