EMCABS

Following are abstracts of papers from previous EMC symposia, related conferences, meetings and publications.

EMCABS COMMITTEE
Bob Hunter, Consultant
r.d.hunter@ieee.org
Sha Fei, EMC Research Section, Northern Jiatong University, Beijing, China
emclab@center.njtu.edu.cn
Ferdy Mayer, 7, rue Paul Barruel, F-75015 Paris, France
ferdymayer@free.fr
Maria Sabrina Sarto, Department of Electrical Engineering, University of Rome, Italy
sarto@elettrica.ing.uniroma1.it

“How Can I Get a Copy of an Abstracted Article?”
Engineering college/university libraries, public libraries, company or corporate libraries, National Technical Information Services (NTIS), or the Defense Technical Information Center (DTIC) are all possible sources for copies of abstracted articles or papers. If the library you visit does not own the source document, the librarian can probably request the material or a copy from another library through interlibrary loan, or for a small fee, you can order it from NTIS or DTIC. Recently it became clear that EMCABs were more timely than publications which were being listed in data files. Therefore, additional information will be included, when available, to assist in obtaining desired articles or papers. Examples are: IEEE, SAE, ISBN, and Library of Congress identification numbers.
As the EMC Society becomes more international, we will be adding additional worldwide abstractors who will be reviewing articles and papers in many languages. We will continue to set up these informal cooperation networks to assist members in getting the information or contacting the author(s). We are particularly interested in symposium proceedings which have not been available for review in the past. Thank you for any assistance you can give to expand the EMCS knowledge base. EMC

EMCABS: 01-8-2006
FDTD-FVTD COMPARISONS IN REVERBERATION CHAMBER
Sébastien Lalléchère, Pierre Bonnet and Françoise Paladian
Blaise Pascal University, LASMEA, Clermont-Ferrand, France,
Sebastien.lallechere@lasmea.univ-bpclermont.fr
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.145-150
Abstract: Modeling of a Mode Stirred Reverberation Chamber (MSRC) using time-domain techniques is achieved by using Finite-Difference Time-Domain (FDTD) and Finite-Volume Time-Domain (FVTD) schemes. Advantages and difficulties related to time domain simulations in MSRC are underlined in this paper. Since FDTD techniques are commonly used, a number of treatments have already been integrated for MSRC studies. By allowing unstructured meshes’ design, a larger geometrical flexibility is allowed by Finite Volume (FV) method. Predicted FV numerical results are compared with those obtained by FD simulations on practical cases involving MSRC in time domain.
Index terms: Conformal geometries, FDTD, FVTD, numerical methods, reverberation chamber.

EMCABS: 02-8-2006
TRANSFER IMPEDANCE MODEL OF MEASUREMENT PATH FOR ESD SIMULATOR CALIBRATION
+ Janusz Baran, +Tomasz Drozdz and ++Jan Sroka
+ Technical University of Czestochowa, Institute of Electronics and Control Systems, Czestochowa, Poland
++ Schaffner EMC AG, Test Systems, Luterbach, Switzerland,
baranj@el.pcz.czest.pl
drozdz@el.pcz.czest.pl
jan.sroka@schaffner.com
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.151-156
Abstract: This paper deals with deriving a frequency dependent transfer impedance of a measurement path for calibration of an electrostatic discharge (ESD) simulator. The transfer impedance is derived from the scattering parameters of the calibration system components, i.e. the Pellegrini target, the cable with attenuator and the broadband oscilloscope, measured in the range from 1MHz to 6 GHz. The frequency analysis of the whole path reveals high frequency effects neglected by the simple resistance models and makes possible the reduction of the calibration uncertainty.
Index terms: ESD simulator, calibration, scattering parameters, transfer impedance, two-port network.

EMCABS: 03-8-2006
ANALYSIS OF COPLANAR-TYPE PRINTED LINES INCLUDING PARASITIC EFFECTS OF BONDING WIRES BETWEEN GROUND CONDUCTORS
+ Tomasz Stefa´nski and ++Bogdan J. Janiczak
+ R&D Marine Technology Centre, Gdynia, Poland
++ Gda´nsk University of Technology, Department of Microwave and Antenna Engineering, Gda´nsk, Poland
stafan@ctm.gdynia.pl
boj@eti.pg.gda.pl
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.157-162
Abstract: Analysis, taking into account influence of parasitic effects of bonding wires between ground conductors on electrical characteristics of the coplanar-type lines has been worked out and employed for propagation modeling of square-wave signals along coupled coplanar waveguides (C-CPW) and coupled coplanar waveguides with a grounded center strip (CCPWGS). Numerical results checked against TDR/TDT measurements have proven the usefulness of the implemented technique.
Index terms: Bonding wires, coplanar waveguides, printed circuit boards.

EMCABS: 04-8-2006
NUMERICAL SIMULATIONS AND THE PRACTICAL PROBLEM OF UNCERTAINTY WITH REGARD TO MATERIAL PARAMETERS
Bernd Jaekel
Siemens AG, Automation and Drives, EMC-Center, Erlangen, Germany
bernd.jaekel@siemens.com
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.172-175
Abstract: Numerical simulations represent a powerful tool for the investigation of electromagnetic interference situations. Their application is particularly desirable for the solution of practical problems because of the manifold advantages connected to simulations. However, in many cases these advantages only exist when the interference situation can be described very accurately regarding, for example, the boundary conditions, the physical arrangement, or the characteristics of the structure under consideration. Then the results of numerical simulations can be taken to conclude on consequences such as mitigation measures. Material parameters are often an important input for the description of a structure and their knowledge is especially required when they affect electromagnetic phenomena in a decisive extent. On the other hand, however, such material parameters are often not known or very difficult to be determined. The paper describes the situation regarding the uncertainty of material parameters and shows the consequences for a practical case. An example is given how to overcome such deficiencies.
Index terms: EMC analysis, inaccuracy, numerical simulation, material parameters, uncertainty.
EMCABS: 05-8-2006
METHOD OF CROSSTALK REDUCTION IN A MULTICONDUCTOR TELECOMMUNICATION CABLE
+ Sandrine Roblot, +Fabienne Moulin, +Ahmed Zeddam and ++Alain Reineix
+ France Télécom R&D Division, 2 avenue Pierre Marzin, 22307 Lannion, France
++ XLIM laboratory, Limoges University of Sciences, Limoges, France
sandrine.roblot@francetelecom.com
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.216-221
Abstract: This paper presents a method of crosstalk reduction in a screened telecommunication cable composed of four conductors. Initially, an electromagnetic and topologic code is implemented to simulate the multi conductor transmission line loaded on a specific termination network. Then, the far end crosstalk voltage is determined and injected on a real line transmitting ADSL2+ signal. With such method, it appears that it is possible to decrease the crosstalk on the line for a typical configuration of source and resistor networks, and consequently to increase the bit rate level and reach of the ADSL2+ transmission.
Index terms: ADSL2+, coupled transmission lines, crosstalk, multiconductor transmission line.

EMCABS: 06-8-2006
EMC ANALYSYS OF PULSE TRANSMISSION ON A WIRED NETWORK
Getahun Mekuria, Holger Hirsch
Universität Duisburg-Essen, ETS, Bismarckstr. 81, 47057-Duisburg, Germany
mek@ieea.uni-duisburg.de
hirsch@ieea.uni-duisburg.de
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.222-225
Abstract: Electric field radiation of 2nd derivative Gaussian pulses on a two-port wired network has been analyzed. Comparison of EMI from UWB pulses and that from OFDM signals of comparable data rates has been made for wired media applications. The analysis is based on computation of Radiated Field Spectral Density through PSD of signals in frequency range for wired applications. Results discussed are based on simulations and are yet to be verified by practical EMI measurements. Though the data rates considered are relatively lower for current broadband communications, the results can be used as references for EM radiation comparison between carrier-based and pulsed transmission of higher data rates on wired media.
Index terms: EMI, EMC, two-port wired network, UWB, PSD, radiated field spectral density.

EMCABS: 07-8-2006
EMC ANALYSIS OF BROADBAND PULSE ANTENNA FOR ULTRA-WIDEBAND RADIOCOMMUNICATION SYSTEM
Gennadij Chavka and Marek Garbaruk
Technical University of Bialystok, Faculty of Electrical Engineering, Bialystok, Poland
ggc@pb.bialystok.pl
mgarbaruk@pb.bialystok.pl
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.226-229
Abstract: A complex approach to computer-aided design of the broadband pulse antenna for UWB (WPAN) communication system is presented in the paper. Investigation of the time-domain and frequency characteristics of the antenna, ultra-wideband signals and properties of the radiated field are described. Time parameters and the limitation of UWB signals’ spectrum are discussed. Results of simulation of the electric field radiated by the antenna in chosen directions are presented.
Index terms: Broadband pulse antennas, computer-aided design, ultra-wideband communication.

EMCABS: 08-8-2006
GTEM CELL CHARACTERIZATION AND APPLICATION ABOVE 1 GHz
Manfred Schmidt
University of Applied Science Jena, Department of Electrical and Information Engineering Carl-Zeiss-Promenade 2, D-07745 Jena, Germany
manfred.schmidt@fh-jena.de
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.242-247
Abstract: Based on EN 61000-4-20, EMI susceptibility measurements in GTEM cells become more and more important because of a less time consuming procedure, and the experiences gained over the last decade. Different methods to characterize GTEM cell properties (1250 mm height of septum) have been studied. Results presented show an acceptable good consistence among one another and with results reported by other authors.
Index terms: GTEM (1250) cell, parameters, GTEM cell application in measurement.

EMCABS: 09-8-2006
12 GHz REALTIME MEASUREMENT OF VOLTAGE AND CURRENT TRANSITION DURATION DUE TO MICRO GAP DISCHARGE AS LOW VOLTAGE ESD
+Ken Kawamata, ++Shigeki Minegishi, ++Akira Haga and +++Osamu Fujiwara
+Hachinohe Institute of Technology, 88-1 Ohbiraki Myo Hachinohe-shi, 031-8501 JAPAN
++Faculty of Engineering, Tohoku Gakuin University, 1-13-1 Chuo Tagajo-shi, 985-8537 JAPAN
+++Nagoya Institute of Technology, Gokiso-cho Showa-ku, Nagoya, Aichi, 466-8555 JAPAN
kawamata@hi-tech.ac.jp
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.274-277
Abstract: The voltage and current transition durations due to small gap discharge as the low voltage ESD was investigated in time domain. The measurement system was set up a very wide band experimental system using the distributed constant line and coaxial electrode. The insertion loss of the experimental system was within - 3dB in frequency range below 12 GHz. It was confirmed that the distributed constant experimental system enables to measure the very fast transients of about 40 ps in 12 GHz bandwidth. As a consequence of the experiment using the system, voltage and current rise time of transition duration were shown as 40 ps or less. In addition, the rise times were changed in configuration of electrodes, source polarity and discharging voltage.
Index terms: ESD, transition durations, time domain, distributed constant line.

EMCABS: 10-8-2006
RADIATED EMISSION CAUSED BY POWER-LINE COMMUNICATION SYSTEMS
Ralf Vick
University of Applied Science Dresden, Germany
vick@et.htw-dresden.de
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.302-305
Abstract: The magnetic and electric near fields caused by power-line communication were investigated. Based on a large amount of measurements, a relation between the resulting asymmetrical signals at the feed point and the radiated fields is shown. The LCL of the system is not suitable to predict the emission of the PLC-System. Therefore, a different approach for testing telecommunication and powerline systems is required.
Index terms: Power-Line communication, PLC, radiated fields.

EMCABS: 11-8-2006
INTERFERENCE POTENTIAL OF PLC AND MEASUREMENT OF MAINS CHARACTERISTICS
Sven Battermann and Heyno Garbe
University of Hannover, Institut für Grundlagen der Elektrotechnik und Messtechnik, Hannover, Germany
battermann@ieee.org
heyno.garbe@ieee.org
Proceedings of 18th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 28 - 30, 2006, pp.306-311
Abstract: Power line communication (PLC) is still promoted by power distribution companies. Furthermore it is widely offered for Ethernet connections between computers and transmission of audio/video signals. Several papers have shown the negative influence on the signal to noise ratio of short-wave based services. This contribution exemplarily shows the significant influence on the sensitivity of a short-wave receiving station with a PLC application in the neighborhood. The disturbance scenario will be examined and a measurement method will be presented to characterize the coupling loss of the mains network.
Index terms: Power-line communication, mode conversion, interference scenario.

EMCABS: 12-8-2006
CHARACTERIZATION, EVALUATION, AND DESIGN OF NOISE SEPARATOR FOR CONDUCTED EMI NOISE DIAGNOSIS
Shuo Wang, Fred C. Lee and Willem Gerhardus Odendaal
Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 USA
shwang6@vt.edu
IEEE Transactions on Power Electronics, Vol. 20, No. 4, July 2005, pp. 974-982
Abstract: It is important to the designers of line filters for conducted emissions to be able to accurately separate differential-mode (DM) from common-mode (CM) noise. Previously published separators have shortcomings, including a dependence on parasitics. This paper uses the scattering parameters (S-parameters) of network theory to both evaluate the shortcomings of previously known separators and to guide the development of a new method that improves such separators. A power factor correcting (PFC) converter is used as the vehicle for analysis followed by the application of the S-parameter analysis to other separation methods. The method is then applied to the design of an improved noise separator whose performance is verified by experimental results.
Index terms: Conducted noise separator analysis and design, conducted noise line filter design, S-parameters, Line Impedance Stabilization Network (LISN). EMC