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, L.E.A.D., Maisons, Alfort France
FerdyMayerLEADFrance@compuserve.com
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: 01-11-2004
Analysis of Radiation from Microstrip Line Configurations Using the Spectral-Domain-to-Real Space Approach
Naoki Kobayashi, Kaoru Narita, Taras Kushta and Hirokazu Tohya
Jisso Research Laboratories, NEC Corporation, Kawasaki-shi, 216-8555 Japan
IEICE Transactions on Communications, Vol. E87-B, No. 2, February 2004, pp.317-325.
Abstract: A new algorithm, the “spectral-domain-to-real-space approach” (SDRSA) is developed to predict radiation from micro-strip lines. The SDRSA uses two-dimensional current density distribution and represents micro-strip lines as three-dimensional structures. SDRSA compares favorably with other methods and with experimental results. It also makes less demand on computer resources.
Index terms: Pauw’s algorithm, micro-strip line radiation, spectral-domain representation.

EMCABS: 02-11-2004
COMPARISON OF DIFFERENT REVERBERATION CHAMBER GEOMETRIES AND EXCITATIONS USING A FREQUENCY DOMAIN METHOD OF MOMENTS SIMULATION
Christian Bruns, Pascal Leuchtmann, and Ruediger Vahldieck
Laboratory for Electromagnetic Fields and Microwave Electronics (IFH) ETH Zurich, CH-8092 Zurich, Switzerland
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.97-102.
Abstract: In this paper the simulation of reverberation chambers, which have different sizes, geometries, and excitation antennas, is presented. Three-dimensional electromagnetic full wave simulations are carried out in the frequency domain using an electrical field integral equation based method of moments approach. An overview on the modeling procedure of the reverberation chambers and the excitation sources is given. The effect of a change in size, design form, or excitation of the chamber on the electric field pattern and on typical reverberation chamber performance parameters is demonstrated.
Index terms: Chamber geometry, excitation antenna, method of moments, reverberation chamber, simulation.

EMCABS: 03-11-2004
IDEA AND DESIGN OF MODULATING GENERATION AND SYNCHRONOUS RECEIVER FOR MULTI-CHANNEL MST SYSTEM
Andrzej E. Sowa, Jerzy S. Witkowski, Jan Duchiewicz
Wroclaw University of Technology, Institute of Telecommunication and Acoustics, Wroclaw, Poland
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.278-281.
Abstract: Time consumption is a very serious problem of electromagnetic field measurement. The authors have proposed a new design of measurement setup that allows solving the problem effectively. This aim can be obtained using a Modulated Scatter Technique (MST) with simultaneous modulation of an array of scattering probes and multi-channel synchronous detection. In the paper, an idea and design of the modulating generator and synchronous receiver for a multi-channel MST system is described.
Index terms: Field measurement, multi-channel MST, optically modulated scatter, synchronous demodulation.

EMCABS: 04-11-2004
ANALYSIS OF ELECTROMAGNETIC EMISSION OF COMPLEX INTEGRATED CIRCUITS
+Michael Schmidt, +Heiko Kohne, ++Thomas Steinecke, +Werner John, +Herbert Reichl
+ Fraunhofer Institute for Reliability and Mikrointegration, Berlin/Paderborn, Germany
++ Infineon Technologies AG, Munich, Germany
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.289-293.
Abstract: Increasing demands on the electromagnetic compatibility of electronic products require the development of new circuit conception techniques. This is especially due to the demands on reduced emissions of microelectronic components in combination with the higher complexity of electrical circuits. Looking at the postulation of decreased design cycles, this can only be achieved by simulations during the design phase, which allow a prediction of the EMC behavior. Regarding the huge complexity of digital ICs (up to millions of transistors on one IC), it is necessary to develop electromagnetic emission models of single gates, functional units and also complete ICs (ASICs, microcontrollers, DSPs, etc.). Within this contribution, a modeling methodology based on a bottom-up approach will be presented. It allows EMC analysis of whole VLSI-ICs during the design phase.
Index terms: EMC, EMI, EME, microcontrollers, switching current, BSIM, behavioral models, on chip current measurements.

EMCABS: 05-11-2004
MODELING AND EXTRACTION OF INDUCTANCES ON CHIP LEVEL
Heiko Koehne, Werner John, Herbert Reichl
Fraunhofer Institute for Reliability and Microintegration (IZM)
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.298-301.
Abstract: The modeling and simulation of magnetic interactions on chip level has become more and more important in the last few years. This is due to smaller structures and as well as rising clock frequencies. This contribution gives an overview on the analysis of parasitic inductances. It also shows their influence on the functional behavior and thus the resulting design measures. The main problem during the extraction of parasitic on chip inductances is the fact that an inductance is the function of a closed current loop. Therefore, it is necessary to analyze the complete current path. It consists of signal path and current return path via the power supply system or substrate. Thus, the current distribution of the whole circuit has to be known for getting correct indications on the loop inductance. Besides the geometrical structures, it depends upon parameters like decoupling capacitors, rise and fall times, and clock frequencies. Consequently, the extraction of the current path and therefore also the inductance, results in a non-trivial problem. Within this contribution, the basic principles and mechanisms for the extraction of on chip inductances are presented. Furthermore, the dedicated inductance extraction for dynamic current analysis and the resulting design measures is shown.
Index terms: Inductance extraction, EMC, on chip parasitics, RF environment, conducted emission, signal integrity.

EMCABS: 06-11-2004
TIME DOMAIN MODELING OF INTERCONNECTED INTEGRATED CIRCUITS BASED ON BLACK BOX APPROACH AND MODEL ORDER REDUCTION FOR SIGNAL INTEGRITY APPLICATIONS
+Grzegorz Lubkowski, +Radoslaw Piesiewicz, ++Werner John
+FhG IZM / University of Paderborn, Berlin/Paderborn, Germany
++Fraunhofer Institute for Reliability and Microintegration, Advanced System Engineering, Germany
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.302-307.
Abstract: This paper presents a black box based abstract approach to the modeling of the whole (driver, interconnect, receiver) signal path in high-density packaged (HDP) integrated circuits (IC). As interconnected ICs constitute very complex systems, they require effective representation for system level simulations. The mathematical description of ICs and interconnects can deliver fast and compact time domain macro-models that are easy to implement in Spice. In this paper, simulation results of several black box ICs macro-models connected to model order reduced interconnect description are presented. These time domain macro-models allow for numerically efficient analysis and simulation of the signal behavior in interconnected, modern ICs.
Index terms: Behavioral modeling, Black Box macro modeling, high-speed interconnects, model order reduction, packages.

EMCABS: 07-11-2004
EXTRACTION OF CRITICAL NOISE PROPAGATION PATHS IN HIGH-DENSITY INTERCONNECT ENVIRONMENT
+Mohamed Taki, +Peter Kralicek, ++Uwe Keller, ++Werner John
+ FhG IZM / University of Paderborn, Berlin / Paderborn, Germany
++Fraunhofer Institute for Reliability and Microintegration, Advanced System Engineering, Germany
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.308-313.
Abstract: A straightforward solution to determine the distribution of transient noise within a circuit is based upon simulation of all relevant interconnects including possible parasitic couplings. Such an approach requires initial knowledge on possible propagation paths as well as rather time consuming simulations. In contrast to this, the method presented in this paper is based upon the application of a recent and very efficient k shortest path algorithm to extract the critical propagation paths from a noise source to a specified integrated circuit input pin. The noise path tracing is performed considering all coupling phenomena between the transmission structures. The algorithm presented is illustrated by means of a transmission line circuit example.
Index terms: Noise propagation paths, signal flow graph, Mason rule, k shortest path algorithms, HDI, HDP, printed circuit board, SI-analysis, EMC, high frequency environment, parasitic electromagnetic effects.

EMCABS: 08-11-2004
ON A POSSIBILITY OF CROSSTALK-FREE PROPAGATION OF SIGNALS IN COUPLED TRANSMISSION LINES
Tomasz Ciamulski, Wojciech K. Gwarek
Politechnika Warszawska, Instytut Radioelektroniki, Poland
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.330-335.
Abstract: The paper deals with the problems of crosstalk reduction in multi-conductor transmission lines. The fundamental properties of coupled lines are studied with the aid of an electromagnetic simulator. This investigation leads to a conclusion that crosstalk elimination is possible even when different signals are transmitted through non-orthogonal sets of the line’s modes. Practical circuit configurations with such properties are shown and reference to experimental verification of the effects is provided.
Index terms: Electromagnetic coupling, coupled transmission lines, crosstalk, multi-conductor transmission lines.

EMCABS: 09-11-2004
LIGHTNING VERIFICATION OF AIRBORNE SYSTEMS-COMPARISON OF TEST SET-UPS
Dipl.-Ing. Wolfgang Tauber, Dr. Wolfgang Kreitmair-Steck, MBA
Eurocopter
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp.359-364.
Abstract: For lightning verification of aircraft, certification authorities are required to determine the voltages and currents to which aircraft wiring and avionics equipment are exposed. The authorities do not accept theoretical investigations as a sole means of validation. Those analyses have to be supplemented by test results of actual measurements. To perform those measurements, the certification authorities of some countries insist on a cost intensive test set-up which is known as the Coaxial Return Line; other countries are not requiring complete system tests but just equipment tests. Due to the fact that current aircraft use more and more composite components (CFC) for structural parts of the aircraft, while the number of electronic/electrical equipment with critical functional modes is increasing, the certification efforts and costs become very expensive. Therefore, the question arises, whether it would be possible or even more adequate to return to the less cost intensive test set-up, the so-called Single Return Line. This paper highlights the differences of the above mentioned test methods from a physical point of view. Actual test results with both test set-ups on a real composite aircraft (a helicopter) support the theoretical assumptions, and clarify the applicability of more simple test set-ups.
Index terms: Lightning, measurement techniques, test setup, aircraft certification, test method, indirect lightning, coaxial return line, direct return line.

EMCABS: 10-11-2004
TREATMENT OF ARBITRARY-SHAPED BOUNDARIES WITH THE FINITE-VOLUME TIME-DOMAIN (FVTD) METHOD
Dirk Baumann, Christophe Fumeaux, Rudiger Vahldieck
Laboratory for Electromagnetic Fields and Microwave Electronics (IFH), ETH Zurich, Switzerland
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp. 445-450.
Abstract: The use of unstructured meshes enables the Finite-Volume Time-Domain (FVTD) method to deal with arbitrarily shaped boundaries. A selection of different boundary conditions that can be applied to surfaces is presented in this paper: dielectric interfaces, ports, perfect conductors and absorbing boundaries. The successful treatment of arbitrarily shaped boundaries is proved on the basis of two examples. First, the simulation of a corrugated horn antenna with the use of homogenized boundaries is presented. Second, a broadband double-ridged horn antenna including oblique and curved surfaces is investigated. Both examples are embedded in computational domains with boundaries shaped to minimize reflections.
Index terms: FVTD, boundary conditions, corrugated horn, broadband double-ridged horn antenna.

EMCABS: 11-11-2004
STUDIES ON THE INFLUENCE OF THE PLC SIGNAL ON OTHER TELECOMMUNICATION SYSTEMS
+Yoshiharu Akiyama, +Hiroshi Yamane, ++Fujio Amemiya, +++Nobuo Kuwabara
+ NTT Energy and Environment Systems Laboratories
++ NTT Advanced Technologies Corp.
+++ Kyushu Institute of Technology
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp. 455-458.
Abstract: This paper describes some studies on the influence of power line communications on other telecommunications systems in terms of radiated electromagnetic field, conductive coupling within the equipment, and inductive coupling between power and telecommunications lines. Distribution of common mode impedance and the longitudinal conversion loss were obtained from in-situ measurement in Japan. The effects of conductive and inductive couplings on VDSL systems were investigated.
Index terms: PLC, VDSL, common mode impedance, LCL, conductive coupling, inductive coupling.

EMCABS: 12-11-2004
A TECHNIQUE TO REDUCE ELECTROMAGNETIC FIELD RADIATED BY INDOOR PLC SYSTEMS
+E. Marthe, ++N. Korovkin, +F. Rachidi, +A. Vukicevic, +++F. Issa
+ Swiss Federal Institute of Technology - Power Systems Laboratory - EMC Group EPFL-STI-LRE, CH-1015 Lausanne, Switzerland
++ Otto-von-Guericke Technical University, 39106 Magdeburg, Germany
+++ Research and Development Department, Electricite de France, F-92141 Clamart, France
Proceedings of 17th International Wroclaw Symposium and Exhibition on EMC, Wroclaw, Poland, June 29- July 1, 2004, pp. 459-462.
Abstract: This paper proposes a technique aiming at reducing significantly the electromagnetic field radiated by indoor PLC signals, while not affecting the PLC signal itself. The basic idea is to take advantage of the additional ground conductor and inject a signal similar to the PLC signal into the ground-neutral line, but with a reversed phase. As a result, both the overall antenna mode- and transmission line mode-currents are significantly reduced, as well as the radiated electromagnetic fields. Numerical simulations obtained using NEC (Numerical Electromagnetics Code), as well as experimental measurements are also presented. It is shown that the proposed technique allows for a significant reduction (up to 20 dB) of the PLC electromagnetic radiation in the considered indoor frequency range (10-30 MHz).
Index terms: Power line communications, electromagnetic radiation, mitigation, EMC. EMC