============================================================== IEEE Montréal - IEEE Electromagnetic Compatibility Society présentation (in English) :
Antenna Behavior and Use - (What Really goes on during a test?!) Colin E. Brench Hewlett-Packard IEEE EMC Society Distinguished Lecturer ============================================================== List-Post: [email protected] Date: Mercredi 5 Juin / Wednesday June 5, 2002 19h00 Place: CRIQ 8475, rue Christophe-Colomb Montréal $$: Gratuit / This event is free to all. For future events IEEE membership may be required. To join online takes about 10 minutes : http://www.ieee.org/membership/join/ ABSTRACT Measurements made to show compliance to the EMC regulatory limits for radiated emissions require the use of antennas. Unfortunately there is a disconnect between the ways the antennas are designed, used and calibrated. This is further confused by the international requirements that must be met when both qualifying an EMC test site and the theoretical models which still have their own inaccuracies. Most of the difficulties arise from the size of the antennas, which at lower frequencies are comparable to the test geometry dimensions. When making any measurement it is an essential goal that the measurement device does not alter the parameter being measured. This is very difficult to achieve during EMC testing and so there is an additional source of uncertainty hat needs to be evaluated and considered. This presentation explores the history of measurement techniques, looks at the magnitude of the errors introduced, and shows how through the use of computational techniques this problem is slowly being addressed. To help explain the issues, the behaviors of a number of different antennas are explored in the EMC test environment. SPEAKER Colin Brench has been working for Digital Equipment Corp., Compaq Computer Corporation, and now Hewlett-Packard Company for 16 years, where he is a Principal Member of the Technical Staff. He has responsibility for EMC product design, and the development of EMC modeling capabilities in the High Performance Server Division. Colin has been particularly active in the area of antenna and shielding behavior since the early 1970's. Colin has presented numerous EMC training classes that embrace a broad range of topics ranging from microprocessor packaging, through printed circuit module issues, to system design and shielding. In many of these classes explanations are clarified with a combination of simulations and data from measurements. Colin is a co-author of the book, EMI/EMC Computational Modeling Handbook (Kluwer Academic, 2nd Edition 2001), and has authored well over 20 technical papers and articles. In addition, he holds ten patents for various methods of EMI control. He is a NARTE certified EMC Engineer, a member of the Applied Computational Electromagnetics Society (ACES) and the IEEE EMC Society. He is active in the IEEE EMCS TC-9 and ANSI ASC63 SC-1 committees. In March of 2001, Colin was appointed a Distinguished Lecturer for the IEEE EMC Society. RESERVATIONS : Benoît Nadeau IEEE Montréal, Président du chapitre EMC Matrox Tel: (514) 822-6000 x2475 Fax: (514) 822-6275 mailto:[email protected] Please reserve (by email), as we would like to advise you should the venue change. Veuillez réserver (par courriel), nous aimerions vous prévenir en cas de changement. LIENS UTILES / USEFUL LINKS : IEEE: http://www.ieee.org Montréal: http://www.ieee.org/montreal Electromagnetic Compatibility: http://www.emcs.org/ ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
