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?”
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than publications which were being listed in data files.
Therefore, additional information will be included, when
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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
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EMCABS: 01-11-2007
MODELING OF DYNAMIC SWITCHING CURRENTS OF DIGITAL VLSI IC MODULES
AND VERIFICATION BY ON-CHIP MEASUREMENT
+ Andreas Gstöttner, ++ Jacek Kruppa and +++ Mario Huemer
+ University of Erlangen-Nuremberg, Germany
++ Infineon Technologies AG, Germany
+++ Klagenfurt University, Austria
gstoettner@lfte.de, jacek.kruppa@infineon.com, mario.huemer@uni-klu.ac.at
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.1-4.
Abstract: Tough requirements on electromagnetic compatibility
(EMC) of electronic equipment force the demand for low electromagnetic
emission (EME) of integrated circuit devices. To enable an efficient
application of measures reducing the noise emission, automatic
model generation tools are needed to be part of the design flow.
In this paper we present a method for high level modeling of dynamic
switching currents of complex digital IC modules as well as the
verification of the simulation results with a high speed on-chip
current and voltage sensor. The current profile calculation for
single modules is based on statistical approaches, and parasitic
effects of cell interconnects are modeled by utilizing signal
processing methods.
Index terms: Digital IC modules, noise emission, dynamic switching
currents, modeling.
EMCABS: 02-11-2007
BEHAVIORAL MACROMODELS OF DIGITAL INTEGRATED CIRCUITS FOR RF IMMUNITY
PREDICTION
I.S. Stievano, E. Vialardi and F.G. Canavero
Politecnico di Torino, Italy
igor.stievano@polito.it
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.5-8.
Abstract: This paper addresses the generation of accurate macromodels
of digital ICs accounting for both the functional and the out-of-band
behavior of devices. The proposed models that can be effectively
used for immunity predictions are obtained from port transient
responses only and can be implemented in any commercial tool based
on SPICE or mixed-signal hardware description languages. The approach
is demonstrated on a real test board by injecting a RF noise disturbance
into a digital IC: a systematic study comparing actual measurements
and simulation predictions is carried out.
Index terms: Digital ICs, radio-frequency immunity, prediction,
macro model.
EMCABS: 03-11-2007
INVESTIGATION OF NEAR FIELD DATA SAMPLING APPROACHES FOR FAR FIELD
RADIATION PREDICTION OF PCBS BY GENETIC ALGORITHM
Hongmei Fan and Franz Schlagenhaufer
WATRI, Australia
fang@watri.org.au, franz-s@watri.org.au
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.21-24.
Abstract: Near field data sampling techniques, including where
to place observation points and how to pre-process the data, are
investigated in respect to a Near Field-Far Field transformation.
For a simple PCB, the optimum equivalent set of basic radiators
is found through a Genetic Algorithm. The magnetic near field
amplitudes for different observation surfaces of the PCB are obtained
from Method of Moment simulations, and the far field patterns
for different frequencies are predicted.
Index terms: PCB, far-field radiation, prediction, near-field
data, genetic algorithm.
EMCABS: 04-11-2007
DISPERSIVE EFFECT OF UWB PULSE ON HUMAN HEAD
Taehong Kim, Jeonglan Kim and Jeongki Pack
Chungnam National University, Korea
thkim@cnu.ac.kr, jlkim@cnu.ac.kr, jkpack@cnu.ac.kr
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.41-44.
Abstract: In this paper, the SA (Specific Absorption) distribution
in a human head, exposed to wideband pulse EMF (0.03–3GHz),
has been analyzed by taking into account the dispersion characteristics
of biological tissues. The dispersive properties of biological
tissues are characterized by the 4th Cole-Cole model. However,
there is no dispersive FDTD algorithm to implement the 4th Cole-Cole
model accurately. Thus, most of the current commercial simulators
adopt the approximate Debye model, which can be easily incorporated
into the FDTD calculation engine. Recently, new methods to implement
the 4th Cole-Cole model approximately have been proposed which
utilize either z-Transform, or sums of exponential functions,
or rational functions of polynomials. In this paper the FDTD methods
with the dispersive algorithm for the 1st Cole-Cole model, the
3rd Debye model and the 4th Cole-Cole model were applied for SA
analysis of four different kinds of human head exposed to a wideband
pulse signal. To implement the dispersive models, each dispersive
model has been optimized to the 4th Cole-Cole model for the given
frequency band. The effects of dispersion in each head model have
been analyzed, and the error of each dispersion algorithm has
been investigated.
Index terms: Human head, wideband pulse exposure, specific absorption,
tissue dispersion.
EMCABS: 05-11-2007
SAR ESTIMATIONS OF PREGNANT WOMAN DURING MR IMAGING FOR ABDOMEN
BY NUMERICAL CALCULATIONS
+ Kazuyuki Saito, + Satoru Kikuchi, + Masaharu Takahashi, + Koichi
Ito and ++ Hiroo Ikehira
+Chiba University, Japan
++ National Institute of Radiological Sciences, Japan
kazuyuki_saito@faculty.chiba-u.ac.jp
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.45-48.
Abstract: Magnetic resonance imaging (MRI) is an effective method
for diagnosis of diseases. During the imaging, the radio frequency
(RF) coil, which is one of the important units in the system,
radiates electromagnetic (EM) pulses to the human body and in
response receives the nuclear magnetic resonance (NMR) signals
emitted from the body. Therefore, it is necessary to estimate
the specific absorption rate (SAR) in the human body due to the
radiated EM energy from the RF coils. Especially, in this study,
SAR distributions in the abdomen of a pregnant woman and her fetus
are investigated by the finite difference time domain (FDTD) calculations.
As a result of the calculations, the SAR distributions inside
the mother’s body and the fetus are cleared.
Index terms: Magnetic resonance imaging, pregnant woman, electromagnetic
pulse exposure, SAR estimation.
EMCABS: 06-11-2007
APPLICATION AND LIMITS OF IC AND PCB SCANNING METHODS FOR IMMUNITY
ANALYSIS
David Pommerenke, Giorgi Muchaidze, Jayong Koo and Qing Cai, Jin
Min
University of Missouri-Rolla, USA
1davidjp@umr.edu, jinmin@amberpi.com
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.83-86.
Abstract: Immunity scanning methods can be used to locate sensitive
areas on PCBs and ICs. For the analysis of emissions, near field
scanning is used to determine the local field strength. Both methods
have many similarities and differences. For both methods it is
difficult to correlate between board level scanning and system
level test results as neither method shows the coupling path directly.
The paper shows the implementation of an immunity scanning system
and analyzes the advantages and limitations of immunity near field
scanning.
Index terms: IC and PCB, emission and immunity, near-field scanning,
advantages and limitations.
EMCABS: 07-11-2007
FDTD ANALYSIS OF THE FIELD PENETRATION THROUGH LOSSY MATERIALS
IN A REVERBERATION CHAMBER
Gabriele Gradoni, Franco Moglie, Anna Pia Pastore and Valter Mariani
Primiani
Università Politecnica delle Marche, Italy
g.gradoni@univpm.it, f.moglie@univpm.it, a.p.pastore@univpm.it,
v.mariani@univpm.it
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.95-98.
Abstract: This paper presents an electromagnetic analysis of lossy
materials with a reverberation chamber (RC) and a case inside
it. The geometrical structure is modeled with a multistructural
FDTD technique. The domain of the RC is simulated with the classical
Hill’s plane wave representation, the material domain is
followed by an array of monodimensional FDTD and the case domain
is made with the perfect electric conductor (PEC). Physically,
the material is placed above an electrically large aperture of
the case, that couples considered environments. Thanks to the
high conductivity of the material, it is possible to separate
numerical domains - only the material lattice is subordinate to
the cell contraction. Numerical results are validated with the
Fresnel theory and compared with experimental measurements.
Index terms: Reverberation chamber, lossy materials, field penetration,
calculation and measurement.
EMCABS: 08-11-2007
PREDICTION OF ELECTROMAGNETIC EMISSIONS FROM PCBS WITH INTERCONNECTIONS
THROUGH COMMON-MODE ANTENNA MODEL
+ Yoshitaka Toyota, + Akifumi Sadatoshi, ++ Tetsushi Watanabe,
+ Kengo Iokibe, + Ryuji Koga and +++ Osami Wada
+ Okayama University, Japan
++ ITCO, Japan
+++ Kyoto University, Japan
toyota@cne.okayama-u.ac.jp, watanabe@okakogi.go.jp, wada@kuee.kyoto-u.ac.jp
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.107-110.
Abstract: A motherboard-daughterboard structure with a connector
is known to have another source of common-mode radiated emissions,
and the emissions depend on the connector’s signal/ground
pin configuration. In order to estimate the amount of radiated
emissions from the structure, a common-mode antenna model is described.
The model consists of an excitation source and an antenna element,
and it calculates radiated emissions from PCBs not only quickly,
but also accurately for practical use. In modeling the board interconnection
via a connector, we added two common-mode excitation sources at
each end of the connector. The electromagnetic emissions estimated
by the model agreed with the measurements within an error of 6
dB around peak emission levels between 300 and 600 MHz.
Index terms: PCB, common-mode radiated emission, prediction, common-mode
antenna model, measurement.
EMCABS: 09-11-2007
MIXED TIME/FREQUENCY-DOMAIN MODELING OF CROSS-TALK PHENOMENA IN
COUPLED MICROSTRIP LINES TERMINATED WITH DIGITAL CIRCUIT
+ Andrzej S. Ciminski and ++ Bogdan J. Janiczak
+ Independent Researcher, Sweden
++ Gdansk University of Technology, Poland
andrzej.ciminski@telia.com, boj@eti.pg.gda.pl
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.115-118.
Abstract: This work presents results of cross-talk modeling in
system of edge-coupled microstrip lines loaded with nonlinear
termination representing input/output pin of a real digital circuit.
An analytical approach based on mixed time/frequency-domain description
allows for inclusion of the line dispersion effect and waveform
analysis accessibility. To eliminate complicated computations
in order to achieve nonlinear load response, the algorithm makes
use of a combination of Volterra and Taylor series. Simulation
results, obtained from a specially designed software tool, called
XTalk, are compared with data gathered from real circuit measurements.
Index terms: Microstrip lines, nonlinear termination, cross-talk
phenomena, mixed time/frequency domain modeling.
EMCABS: 10-11-2007
A METHOD TO CONVERT SCATTERING PARAMETERS FROM COMMON MODE TO
DIFFERENTIAL MODE FOR AUTOMOTIVE APPLICATIONS
+ Ye Zhu, + Marco Klingler and ++ Françoise Paladian
+ PSA Peugeot Citroën, France
++ LASMEA, France
ye.zhu@mpsa.com, francoise.paladian@lasmea.univ-bpclermont.fr
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.155-158.
Abstract: This communication proposes a new method to evaluate
the differential mode scattering parameters of cable harnesses
from the scattering parameters calculated or obtained conventionally
in common mode. Considering a reference conductor instead of a
ground plane, the characterization of coupling effects by means
of differential mode S-parameters is of great practical interest
in automotive applications. In order to show the efficiency of
the method, an example of crosstalk prediction is provided.
Index terms: Cable harnesses, common to differential mode conversion,
scattering parameters, crosstalk prediction.
EMCABS: 11-11-2007
EFFECT OF THE SIZE OF THE ANTENNA ON MEASUREMENTS DISTRIBUTION
IN REVERBERATION CHAMBER
Christophe Lemoine, Philippe Besnier and M’hamed Drissi
IETR, France
christophe.lemoine@insa-rennes.fr
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.461-464.
Abstract: This paper introduces a new perception in the analysis
of distribution functions of a rectangular component of the electric
field (ER) and the power received (P) in an overmoded reverberation
chamber (RC). High power goodness of fit (GOF) tests modify the
determination of the lowest frequency from which the ideal underlying
theoretical distributions can be associated with measurements.
For the electric field, a Weibull distribution is proposed to
model ER in an overmoded RC, instead of the Rayleigh distribution
hypothesis, which is rejected by statistical tests. Furthermore,
Weibull distribution provides better agreement with the standard
deviation of samples. An additional experiment with a monopole-like
antenna shows that the exponential distribution is not rejected
if the antenna length is over 0000/4. Experimental results are
provided by a large number of GOF tests.
Index terms: Overmoded reverberation chamber, electric field and
power, goodness of fit tests, Weibull distribution.
EMCABS: 12-11-2007
FIGURES OF MERIT FOR A HYBRID TEM-REVERBERATION CHAMBER
+ Paul Kay, ++ Franz Schlagenhaufer and ++ Hongmei Fan
+ University of South Australia, Australia
++ WATRI, Australia
paul.kay@postgrads.unisa.edu.au, franz-s@watri.org.au
Proceedings of 18th International Zurich Symposium on Electromagnetic
Compatibility, Munich, Germany, September 24-28, 2007, pp.473-476.
Abstract: A hybrid TEM-reverberation chamber would allow efficient
radiated field immunity tests to be performed from DC to microwave
frequencies in a single facility. TEM cells are limited to testing
comparatively small equipment at relatively low frequencies. Reverberation
chambers must be very large to be effective at low frequencies,
because the statistical properties of the randomly polarized field
break down when insufficient mode stirring occurs. Since there
is no frequency overlap between TEM and reverberation operation
for a chamber of any given size, a combined TEM/reverberation
facility must also operate in a transition mode in order to cover
the entire frequency band. This paper proposes performance parameters
for overmoded TEM and undermoded reverberation frequency ranges,
and gives an example of how the figures of merit can be used to
evaluate potential hybrid cell designs.
Index terms: Hybrid TEM-reverberation chamber, performance parameters,
figures of merit, radiated field immunity tests. EMC
