[AllUsers-ISR] Talk - A novel measurement procedure to identify critical frequencies for coupled Electromagnetic signals

[Tony Almeida]

*Talk with Dr.-Ing. Lars Ole Fichte, Wednesday, October 17th at 14h30. 
Auditorium A5.2 (DEEC/FCTUC)*

*/Title/: A novel measurement procedure to identify critical frequencies 
for coupled Electromagnetic signals*

/Abstract:/A novel measurement procedure to identify critical 
frequencies at which electromagnetic signals couple into electronic 
devices is presented. The proposed method determines the power absorbed 
by the device under test (DUT) as a function of the frequency via the 
difference between the power dissipated in an empty and in a loaded 
electromagnetic reverberation chamber.

To increase the statistical significance of the results, particularly in 
case of a bad signal-to-noise ration, parametric models for the power 
absorption of uni- or multi-modal resonators are fitted to the measured 
spectral power absorption. The validity of the method is proven by 
simple generic DUTs with previously known characteristics.

/Short Bio:///Lars Ole Fichte finished his PhD on solving low frequency 
eddy current problems with a semi-analytical method combining separation 
and boundary integral methods in 2007 and has been working as a 
researcher at Helmut Schmidt University since. His research interest 
include (but are not limited to) precise measurement of electromagnetic 
fields in EMC test setups, primarily Reverberation chambers, statistical 
investigations on EMC field tests and the interaction of RF range fields 
with biological tissue. He is the Chairman of German URSI commission K, 
a senior member of IEEE EMC society, and works with various 
standardization committee, such as IEC SC77C.

-- 

Tony Richard de Oliveira de Almeida
Assistant Professor
Deputy Editor-in-Chief IET Science, Measurement & Technology

Universidade de Coimbra • Faculdade de Ciências e Tecnologia | 
University of Coimbra • Faculty of Sciences and Technology
Departamento de Engenharia Eletrotécnica e de Computadores | Department 
of Electrical and Computer Engineering
ISR - Instituto de Sistemas e Robótica
Pólo 2 - Pinhal de Marrocos | 3030-290 • Coimbra • Portugal
Tel: +351 239 796 290  (Ext. 421376)
E-mail: tony.almeida at uc.pt
Skype: tony.r.almeida


www.uc.pt | www.uc.pt/fctuc/deec

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