EMCABS
	EMC Abstracts Osamu Fujiwara, Associate Editor

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

EMCAB COMMITTEE

Bob Hunter
Consultant
r.d.hunter@ieee.com

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 of 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, 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.

Also, the steering staffs of the Japan Technical Group and the EMC Japan Tokyo Chapter have offered to act as a central point for requests of papers abstracted here. Most of the papers will be available in Japanese only. Abstracts of papers from EMC Japan will be clearly identified. As a member of the steering staff, I will assist in routing your request to the author(s) but will not translate the papers.

Some of the Chinese papers are not available in English. Professor Sha Fei, EMC Research Section, Northern Jiatong University, has offered his time and assistance in routing requests for papers to appropriate author(s). He is not furnishing a translation service.

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: 01-5-2001

EXPERIMENTAL SENSITIVITY ANALYSIS OF THE SCATTERING PARAMETERS OF WIRE HARNESSES FOR FREQUENCY-DOMAIN MODELLING
Marcello D'Amore and Maria Sabrina Sarto
University of Rome "La Sapienza", Department of Electrical Engineering, via Eudossiana 18, 00184 Rome, Italy
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 16D1, pp.81-86.

Abstract: An experimental study is carried out in order to assess the sensitivity of the scattering parameters of conductor pairs inside a complex cable bundle against variations of the harness composition, of the height above the ground plane, of the load condition of surrounding bundles. The influence of either the metallic overall-screen or the insulating sheath is also analyzed. The analysis is carried out by considering a typical bundle used on board aircraft. Useful indications for the definition of simulation models for the evaluation of the per-unit length external parameters of complex harnesses are derived.

Index terms: Wire harness, scattering parameter, sensitivity, aircraft.

EMCABS: 02-5-2001

COUPLING OF INHOMOGENEOUS FIELDS INTO AN AUTOMOTIVE CABLE HARNESS WITH ARBITRARY TERMINATIONS
S. Frei+ and R. Jobava++
+ Audi AG, Germany
++ Tbilisi State University, Georgia
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 17D2, pp. 87-92.

Abstract: Electronic equipment in automobiles can be exposed to very high field strengths. The cable harness is, from the EMC point of view, the most critical part of an automobile. A direct computation of the terminal voltages of the cable harness with a 3D field solver is nearly impossible due to the different structure sizes of wires and car bodies. A new hybrid method based on Transmission Line (TL) theory, the Method of Moments (MoM), and circuit simulation programs was developed to calculate the coupling of inhomogeneous fields into non-uniform transmission lines, terminated with arbitrary non-linear circuits. Selected examples show the applicability of the method.

Index terms: Coupling, automobile, cable harness, transmission line theory, method of moment.

EMCABS: 03-5-2001

HUMAN-GENERATED ESD: INVESTIGATION ON THE DIRECT DISCHARGE TO A VICTIM
V. Amoruso, M. Helali and F. Lattarulo
Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, Bari, Italy
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 38G5, pp. 193-198.

Abstract: The ESD directly applied to some classes of victims has carefully been investigated. A diakoptic theory-based HBM, combined with an available PSPICE routine, has methodically been adopted to reproduce the discharging phase. Specifically, the influence of the human posture, the non-linear behavior of the arc and a metallic intruder are discussed with a certain degree of detail. The victims under examination are grounded and classified as deprived of, or conversely presenting, substantial stray capacitance. In addition, the practical case of off-chip protected integrated circuit has been selected as a representative example.

Index terms: Electrostatic discharge (ESD), human-generated ESD, direct discharge, human body model, integrated circuit.

EMCABS: 04-5-2001

TIME DOMAIN ANALYSIS OF LOSSY MULTICONDUCTOR TRANSMISSION LINES
F. Schlagenhaufer, K. Fynn and A. Cantoni
The University of Western Australia, Department of Electrical and Electronic Engineering, 35 Stirling Highway, CRAWLEY WA 6009, Australia
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 42H2, pp. 217-222.

Abstract: Multiconductor transmission lines (MTL) and their analysis have been subject to numerous investigations for many years. The combination of MTL solutions with the CPU power of current computers allowing the treatment of hundreds of coupled conductors extends the class of problems to which this method can be applied. This paper gives a brief introduction of the theory how to adopt Bergeron's method to the treatment of multiconductor and field excited transmission lines. This is followed by a number of examples: the calculation of characteristic impedances of transmission lines, the calculation of field excited multiconductor lines, and the investigation of the coupling through a plane of finite conductivity.

Index terms: Multiconductor transmission line, field excited transmission line, coupling, characteristic impedance, Bergeron's method.

EMCABS: 05-5-2001

A MODEL FOR A FINITE LENGTH TRANSMISSION LINE CONSIDERING SKIN AND RADIATION EFFECTS
N.V.Korovkin+, S.V.Kotchetov+, E.E.Selina+, S.V.Tkatchenko++, M.Ianoz+++
+ Saint Petersburg State Technical University, Russia
++ Radio Research & Development Institute (NIIR), Moscow, Russia
+++ Swiss Federal Institute of Technology of Lausanne, Switzerland
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 44H4, pp. 229-234.

Abstract: Widening of the frequency range for the analysis of distributed systems is a characteristic feature for modern EMC problems. The developed techniques permit one to take into consideration radiation effects, but do not allow regarding skin and proximity effects and, in particular, an additional attenuation caused by these effects. On the other hand, the methods that take into account skin and proximity effects do not allow the treatment of radiating systems. The authors propose an approach based on the generalized system of the telegrapher's equations permitting one to consider more exactly skin and proximity effects and with a simultaneous approximate consideration of the electromagnetic energy radiation. The structure of the equivalent circuit modeling transmission line radiation is defined from a rigorous solution of the "canonical" problem for a two-wire line, but its equivalent parameters are determined in such a way that the mathematical model represents the performance of real systems. The experimental results are compared with those calculated for the simplest system.

Index terms: Transmission line, skin effect, proximity effect, radiation, equivalent circuit modeling.

EMCABS: 06-5-2001

FULL –WAVE TRANSMISSION-LINE THEORY (FWTLT) FOR THE ANALYSIS OF THREE-DIMENSIONAL WIRE LIKE STRUCTURES
Heiko Haase and Jurgen Nitsch
Institute for Fundamental Electrical Engineering and EMC, Otto-von-Guericke University, Magdeburg, Germany
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 45H5, pp. 235-240.

Abstract: This paper presents a generalized transmission-line theory which is useful to describe the wave propagation along as well as the field coupling to almost arbitrary three-dimensional wire structures. In contrast to the classical transmission-line theory, this new theory is a full-wave description based upon generalized telegraphers equations. Whereas the mathematical structure of these equations is preserved, the coefficients (the per unit length parameters) are redefined in order to represent the intrinsic behavior of the wire structure. Due to the full-wave description, all EM phenomena, e.g., radiation, are taken into account. Measurements as well as MoM simulations were performed to validate the predicted data.

Index terms: Full wave transmission-line theory, three-dimensional wire structure, coupling, radiation, complex line parameters.

EMCABS: 07-5-2001

ANALYTICAL MODELLING OF RADIATED EMISSION FROM LONG BUS-LINES IN CMOS ICS
J.R. Bergervoet
Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 52I5, pp. 275-280.

Abstract: A new, closed-form analytical expression is derived for the influence of the substrate on the transmission line parameters, taking into account capacitive, resistive and inductive coupling. This is used in a multi-transmission line model for the EMC properties of a digital bus-line in an IC (epi-type, with highly doped substrate). The influence of the substrate on cross-talk and on radiated emission levels is demonstrated. It is shown that for long bus-lines, the emission directly from the chip can reach levels comparable to the CISPR radiated emission limit.

Index terms: Radiated emission, cross-talk, CMOS, bus-line, transmission line parameter.

EMCABS: 08-5-2001

A HIGH FREQUENCY MODEL OF CURRENT PROBES FOR INJECTION PURPOSES
G. Cerri, R. De Leo, V. Mariani Primiani
Dipartimento di Elettronica ed Automatica, Universitˆ di Ancona, Via Brecce Bianche Ð 60131 Ancona, Italy
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 71K8, pp. 379-384.

Abstract: The paper presents a method for the modeling of current probes, used in injection applications, up to 1 GHz. It is based on the determination of the S matrix of the probe thought of as a three port network. The probe parameters are recovered by some measurements when it clamps a standard line, whose characteristics are theoretically known. The results pertaining to the signal injected on a line using this model are compared with measurements and with the results obtained by a simplified probe model, based on a series transformer.

Index terms: Current probe, modeling, injection application, S Matrix.

EMCABS: 09-5-2001

CHARACTERIZATION OF PRINTED CIRCUIT BOARD TRANSMISSION LINES AT DATA RATES ABOVE 1 GB/S USING TIME DOMAIN CHARACTERISTICS DERIVED FROM FREQUENCY DOMAIN MEASUREMENTS
V. Adamian+, J. Knighten++, N. Smith++, B. Cole+, P. Phillips+, R. Alexander++, and J. Fan++
+ ATN Microwave, N. Billerica, MA, USA
++ NCR Corporation, San Diego, CA, USA
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 95O1, pp. 509-514.

Abstract: High data rate differential transmission line characteristics were examined on printed circuit test boards fabricated from five different board materials. Two areas of primary concern were signal loss and common-mode signal generation. Frequency domain characteristics were studied by means of mixed-mode s-parameters with time domain behavior derived from them. Impedance profiles versus distance along the transmission line were generated. Time domain eye patterns were generated by convolving the time domain impulse response of SDD21 with a repetitive bit pattern. The frequency domain measurement technique was found to be well suited to cost-effective characterization. At data rates above 1 Gb/s, dielectric losses can have a significant effect on the distance that a differential signal may be propagated.

Index terms: Printed circuit board, common-mode, time domain analysis, giga-hertz range, dielectric loss.

EMCABS: 10-5-2001

CALCULATION OF SELF AND MUTUAL INDUCTANCES ASSOCIATED WITH VIAS IN A DC POWER BUS STRUCTURE FROM A CIRCUIT EXTRACTION APPROACH BASED ON A MIXED-POTENTIAL INTEGRAL
Jun Fan+, James L. Drewniak++, James L. Knighten+, Norman W. Smith+, and Antonio Orlandi+++
+ NCR Corporation, San Diego, CA, USA
++ University of Missouri-Rolla, Rolla, MO, USA
+++ University of L'Aquila, L'Aquila, Italy
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 97O3, pp. 521-526.

Abstract: Inductances associated with vias are critical in printed circuit board DC power bus and SMT decoupling designs. Many issues, such as decoupling capacitor effectiveness, local decoupling, etc., involve the characterization of interconnect vias. A procedure was developed to extract lumped element values for the DC power bus structures with vias from the equivalent circuit model extracted from a first principles formulation. Although the capacitance model for the power and ground planes is valid only at low frequencies, via inductances dominate into the giga-hertz range. The extracted inductance values were used to estimate decoupling effects, and good agreement was achieved compared with full-wave modeling.

Index terms: Printed circuit board, power bus, inductance, via, giga-hertz range.

EMCABS: 11-5-2001

A QUALITATIVE ANALYSIS APPROACH FOR AN EXTERNALLY EXCITED TRANSMISSION LINE
M.Tayarani and Y.Kami
Univ. of Electro-Communications, Tokyo, Japan
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 110P9, pp. 589-594.

Abstract: Fuzzy inference abilities were implemented to electromagnetic problems for the first time by the authors. After very successful results of applying the developed fuzzy modeling method to input impedance of a general monopole antenna and general transmission line, in this article we apply the proposed method to make a qualitative model for coupling of an external wave to a transmission line to show the abilities of the proposed method in EMC problems. It is shown that because of using a novel point of view and parameters, the system may be analyzed and modeled by simply using a fuzzy inference system based on new parameters.

Index terms: Electromagnetic interference, transmission line, fuzzy modeling, coupling, external field.

EMCABS: 12-5-2001

REVERBERATING CHAMBERS AND ABSORBERS
Paolo Corona+, Giuseppe Ferrara+ and Maurizio Migliaccio++
+ Istituto Universitario Navale, Istituto Teoria e Tecnica delle Onde Elettromagnetiche, Via Acton 38, 80133 Napoli, Italy
++ Universitˆ di Cagliari, Dipartimento di Ingegneria Elettrica ed Elettronica, Piazza d'Armi 19, 09123 Cagliari, Italy
Proceedings of 14th International Zurich Symposium on EMC, Switzerland, Feb. 20-22, 2001, 118R1, pp. 631-634.

Abstract: A study regarding the role of absorbing materials within a reverberating chamber is presented. In particular, it examines the influence of absorbers in modifying the structure and the level of the electromagnetic field within a reverberating chamber. The study is based upon a novel generalized stochastic approach to the field within the reverberating chamber and a set of experiments conducted at the Istituto Universitario Navale (IUN) reverberating chamber facility. Such results show that it is possible to generate a field which is characteristic of urban environments. As a consequence, it is proven that the reverberating chamber is acceptable to properly test electronic devices meant to operate in urban environments.

Index terms: Reverberation chamber, absorbing material, urban environment, stochastic approach.

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