[SI-LIST] RFID antenna parasitic resonances affect operation

From: Doug Smith <doug@xxxxxxxxxx>
To: emc-pstc <emc-pstc@xxxxxxxx>, Si-List <si-list@xxxxxxxxxxxxx>
Date: Sat, 07 Sep 2013 16:48:24 -0700

 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-resonancesat 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
mayget 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[1]
(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[2]

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[3] \ _ / ] \ _ / Web:
http://www.dsmith.org[4]
-------------------------------------------------------------- 

--- Links ---
   1 http://emcesd.com/tt2013/tt090813.htm
   2 http:emcesd.com
   3 mailto:doug@xxxxxxxxxx
   4 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

[SI-LIST] RFID antenna parasitic resonances affect operation

Other related posts: