In 2006, five members that were evaluated by
the EMC Society Fellow Evaluation Committee were elected to the
IEEE Fellow Grade. I believe this is the largest number of new
EMC Society Fellows that have been elected in any one-year period.
In order to qualify for election to the Fellow grade, a member
must have made a significant contribution to their field of endeavor.
I would like to offer my congratulations to our five new Fellows:
Flavio Canavero, James Drewniak, Antonio Orlandi, Andrew Podgorski
and Masamitsu Tokuda for being elected to the Fellow Grade. These
five new fellows are our EMC Personality Profiles for this issue
of the Newsletter.
Professor
Flavio Canavero has a PhD degree from the Georgia Institute of
Technology and a Masters Degree from Politecnico di Torino, Italy.
He is a Professor of Electromagnetic Compatibility and Circuit
Theory at the Politecnico di Torino. Professor Canavero was elected
to the Fellow Grade as a Research Engineer/Scientist “for
contributions to the modeling of circuits and electronic interconnects.”
He has significantly contributed to the transient analysis solution
of lossy and dispersive transmission lines with nonlinear terminations
and interfering fields. More recent contributions have been in
the area of macromodeling of nonlinear devices such as drivers
and receivers for modeling critical paths, etc. The contributions
of Professor Canavero include modeling the entire signal transmission
chain from the driver to the receiver via the bus including possible
discontinuities. The results obtained and the methodologies developed
constitute a significant contribution to the advancement of applied
electronics engineering. Professor Canavero has authored a number
of papers that have been published in the IEEE Transactions on
EMC and other technical journals. He received a Best Paper Award
at the International Symposium on EMC (EMC Roma, September 1996)
for his contribution on “Interconnect Models for Commercial
Simulators” that proposed a simple procedure to include
transient models of electrically long multiconductor lines with
low frequency-dependent losses in circuit simulators. He also
extended the approach of line solution via convolution to include
the effects of external interference with the generation of Spice-ready
equivalent circuits as published in the special issue of the Transactions
on EMC, August 1996. Professor Canavero has been very involved
in professional activities both within the IEEE and other professional
organizations, particularly the International Union of Radio Science
(URSI). He just completed a three-year term as Editor in Chief
of the IEEE Transactions on EMC, and is now serving as Technical
Editor of the Practical Papers, Articles and Application Notes
Section of the EMC Newsletter.
Professor
James L. Drewniak received the PhD, Masters and Bachelors degrees
from the University of Illinois at Urbana-Champaign. He is a Curator’s
Professor of Electrical and Computer Engineering as well as the
Director of the Materials Research Center at the University of
Missouri-Rolla. Professor Drewniak was elected to the Fellow Grade
as a Research Engineer/Scientist “for contributions in electromagnetic
interference coupling paths and numerical modeling for EMC design
of printed circuit boards.” The results of his research
have provided a better understanding of EMI noise sources and
coupling paths in printed circuit boards (PCBs). First, the result
of Professor Drewniak’s research provides a better understanding
of the fundamental physics of EMI coupling paths, including power
bus decoupling on multi-layer PCBs, and on fundamental EMI source
mechanisms driving common-mode radiation from printed circuit
boards. Second, Professor Drewniak’s advanced numerical
modeling for EMC design for printed circuit boards includes power
distribution and power and signal integrity on complex PCBs. This
work was reported in a series of IEEE Transaction papers, authored
by Professor Drewniak, et. al., in which advanced numerical modeling
techniques were used to better understand the physics associated
with the electrical or electromagnetic behavior. Two IEEE EMC
Society Symposium papers from the mid 1990s, as well as a recent
paper, received “Best Paper Awards.” Professor Drewniak
has strong interactions with industry through the university’s
UMR EMC Consortium, which he helped establish to better understand
the evolving design problems in high-speed digital printed circuit
boards. Professor Drewniak is recognized worldwide as a pioneer
and an authority in the understanding of the physics of printed
circuit board EMI and signal integrity. He has written several
papers on the subject, which have been published in the IEEE Transactions
on EMC and other IEEE publications. Professor Drewniak has been
very active in the IEEE EMC Society. He has chaired several committees
including TC-9 Computational Electromagnetics and TC-10 Signal
Integrity. Also, he is a past Associate Editor for the IEEE Transactions
on EMC. He has been active in EMC organizations other than IEEE,
including EMC Europe and the Zurich International Symposia.
Professor
Antonio Orlandi received his “Laurea” degree from
the University of Roma “La Sapienza” Rome, Italy.
He is a Full Professor of Electrical Engineering at the University
of L’Aquila. Professor Orlandi was elected to the Fellow
Grade as a Research Engineer/Scientist “for contributions
to the simulation and design of high-speed digital circuits.”
Professor Orlandi’s contributions encompass three areas.
They are: (1) modeling of interconnected transmission line networks;
(2) modeling of printed circuit board discontinuities such as
vias, and (3) incorporation of frequency dependent losses into
transmission line analysis. As a result of Professor Orlandi’s
work, discontinuities such as vias and branched lines consisting
of non-parallel conductors can be modeled using a Finite Difference
Time Domain (FDTD) numerical computational technique. He has pioneered
the incorporation of State Variable methods for characterizing
transmission line networks with discontinuities and terminated
in nonlinear loads. The use of State Variables has provided orders
of magnitude reductions in the solution time required for large
and complicated printed circuit board networks compared to the
conventional solution time using decoupling methods. The use of
the State Variables method has allowed an efficient incorporation
of nonlinear loads, which was previously very difficult. In addition,
the printed circuit board lands have a resistance and an internal
inductance that are highly dependent on frequency. This posed
a problem that could not be solved using the decoupling method
for the transmission line solution for current high-speed digital
circuits. Professor Orlandi’s novel use of the Prony method
of characterizing this frequency dependency, coupled with a unique
method of reducing the computation time required to perform a
numerical evaluation of the convolution integral, have made the
analysis of lossy lines using the FDTD method very attractive
from both speed and accuracy perspectives. Professor Orlandi has
also developed accurate macromodels of vias and other transmission
line discontinuities by extracting S-parameter models from experimental
data. Without these models of vias, accurate calculations of signal
and crosstalk on today’s high speed PCBs would not be possible.
Professor Orlandi has been very active in the IEEE EMC Society.
He was an Associate Editor of the IEEE Transactions on EMC and
has served on several EMC Society committees. He has authored
a number of papers (two of his papers received Best Paper Awards).
He received the IEEE EMC Society Technical Achievement Award “for
innovative contributions to the numerical modeling and the impact
of signal integrity on EMC/EMI in high speed digital systems.”
He is co-founder (with Professor Andy Marvin) of the “EMC
Aviators Club.” He has a Private Pilot License and a Class
A Radio Amateur License (call sign IZOEAD).
Dr.
Andrew Podgorski received a Bachelors Degree from the Technical
University of Warsaw in Warsaw, Poland. He received his Masters
and PhD Degrees from the University of Waterloo in Ontario, Canada.
Dr. Podgorski was elected to the Fellow Grade as a Research Engineer/Scientist
“for contributions to broadband immunity and compatibility
certification.” He is a Senior Research Associate at the
Air Force Research Lab through the National Research Council of
Canada. Dr. Podgorski has made noteworthy contributions to research
and development in the field of broadband electromagnetics. His
research included a study of the broadband phenomena of lightning,
the nuclear electromagnetic pulse (EMP) and the human electrostatic
discharge which can result in pulse rise times as short as 25
picoseconds. Dr. Podgorski’s work includes the development
of broadband electromagnetic environments and protection standards.
His new approach to EMI/EMC immunity testing and hardness assessment
allows one to tailor the radiated immunity test to the specific
environment and equipment under test, thereby lowering the cost.
He has also developed broadband transmitters, receivers and test
facilities. In order to satisfy new EMI/EMC verification requirements,
Dr. Podgorski designed and developed broadband antennas with antenna
factors (fmax/fmin) greater than 100. These antennas are patented
in the USA, Europe, Canada and Japan. They do not have the notches
in their patterns that existed with the antennas that were previously
used. Currently, NASA, the Swiss Army and the US Army are using
these antennas. The availability of broadband antennas led to
the development of a Dual Polarization Test Facility that can
be used to perform fully automated Radiated Emission and Immunity
tests from kHz to 100 GHz in a single facility. The Dual Polarization
Test Facility is patented. By using the Dual Polarization Facility,
the time required to test one item was reduced from 12 hours to
20 minutes, and a much smaller, less expensive anechoic or semi-anechoic
chamber can be used instead of a large facility. The same broadband
technology can also be used to improve testing in a reverberation
chamber. Dr. Podgorski has been active in the EMC community. He
has presented papers at a number of Symposia and he has served
on several committees and the IEEE EMC Society Board of Directors.
Professor
Masamitsu Tokuda received his PhD, Masters and Bachelors Degrees
from The Hokkaido University in Sapporo-shi, Japan. Professor
Tokuda was elected to the Fellow Grade as a Technical Leader “for
leadership in development and international standardization of
electromagnetic compatibility for communication systems.”
Professor Tokuda formed a group to pioneer research into emission
and immunity problems in telecommunication systems. Unlike ordinary
information technology equipment, telecommunications systems are
connected to long telecommunication lines which act as antennas
and emit and receive EMI. He conducted experiments and determined
that the degree of balance and common mode EMI were dominant factors.
As a result of this research, he developed the impedance-stabilizing
network (ISN) for conducted emissions testing and a coupling and
decoupling network (CDN) for conducted immunity testing. Versions
1 and 2 of the international standard (CISPR 22) regarding emissions
from information technology equipment regulated only the EMI emitted
directly from the AC power line and the equipment enclosure port.
However, if a long telecommunications line is connected directly
to the information technology equipment, EMI may be emitted through
the telecommunication line. Professor Tokuda’s group proposed
the use of the ISN for emission tests and the use of common-mode
currents for defining emission limits. CISPR was formulated in
1997 and it was adopted world-wide as a compulsory standard for
EMI emissions from information technology equipment. When studies
started in 1993 for defining an international standard (CISPR
24) regarding the immunity to interference, Professor Tokuda’s
group produced a draft for a method of testing the immunity of
telecommunications equipment based on the CDN. Professor Tokuda
indicated that if the EMI immunity limits that applied to general
electronic equipment were applied without modification to information
technology equipment, the limits would become excessively stringent
and would not be commensurate with the actual audible EMI. Consequently,
several countries conducted immunity studies and their findings
supported Professor Tokuda’s observations. As a result of
these findings, the conducted immunity limits were relaxed. Professor
Tokuda has been active in the EMC community. He has authored a
number of papers, served on several important committees, and
made significant contributions to EMI emission and immunity standards.
EMC