Emerging Technologies in EMC

Transcription

1 ADVANCE PROGRAM REGISTRATION FORM The IEEE Electromagnetic Compatibility Society Proudly Presents Emerging Technologies in EMC Monday, 4 April 2011 AGÊNCIA NACIONAL DE TELECOMUNICAÇÕES (ANATEL) CAUS, Qd. 6, Bl. H Brasília, DF, Brasil

2 Program Agenda 9:00 am REGISTRATION COMPLIMENTARY REFRESHMENTS 10:00 am Anatel Welcome Maximiliano Salvadori Martinhão IEEE EMC Society Welcome Professor Francesca Maradei, President of the IEEE EMC Society 10:15 am 11:00 am The Evolution of Complex Cavity Measurement Techniques from Precision Metrology Applications to Aircraft Electromagnetic Environment Assessments Dennis Lewis, The Boeing Company, Seattle, Washington Tomographic Techniques (Microwave CAT Scans) for Detecting/Imaging Obsured Objects Dr. Johannes Nordgaard, NASA/JSC, E3 Lab, Houston, Texas 12:00 pm LUNCH BREAK 1:15 pm Half Power Beamwidth Measurements of Radiated Emission Antennas for EMC Dr. Vicente Rodríguez, ETS-Lindgren, Cedar Park, Texas 2:00 pm Current EMC Metrology Research at the National Institute of Standards and Technology (NIST) Dr. Perry Wilson, NIST, Boulder, Colorado 2:45 pm COMPLIMENTARY REFRESHMENTS 3:05 pm Mixed Analog/Digital Circuit Board Design and Layout for EMC Dr. Todd Hubing, Clemson University, Clemson, South Carolina 3:50 pm 4:35 pm to 5:30 pm Numerical Simulations for EMC Compliance and Standard Development: A New Trend in European Standards Dr. Francesca Maradei, Sapienza University, Rome, Italy ANATEL Presentation The EMC Requirements for the Certification of Telecommunication Products in Brazil CONCLUDING REMARKS Maximiliano Salvadori Martinhão, Anatel

3 TECHNICAL PROGRAM Presentation Abstracts Presentation Title: The Evolution of Complex Cavity Measurement Techniques from Precision Metrology Applications to Aircraft Electromagnetic Environment Assessments By Dennis Lewis, The Boeing Company, Seattle, Washington Abstract: Electromagnetic reverberation chambers have been used for any years by the EMC community to measure the susceptibility and emissions for various electronic components and systems. This presentation describes how these EMC tools were adapted as a metrology tool to generate precision electromagnetic fields used for field probe calibrations. The presentation also goes on to explain how these techniques were later applied to aircraft measurements to assess the aircraft electromagnetic environment, including wireless propagation and aircraft fuselage attenuation. Utilizing a precision network analyzer along with fiber optic port extenders, measurements of RF propagation from sources as varied as point source antennas to leaky coaxial antennas were obtained. These assessments are essential in the design and implementation of wireless systems on-board aircraft as well as ensuring aircraft system EMC. *********************************************************************************************************** Presentation Title: Tomographic Techniques (Microwave CAT Scans) for Detecting/Imaging Obsured Objects By Johannes Nordgaard, NASA/JSC, E3 Lab, Houston, Texas Abstract: Enhanced remote sensing techniques are being developed to accurately detect and identify obscured objects. In this paper, Microwave Tomography is used to detect and image obscured objects. Tomograms (RF CAT Scans) of the obscured objects are formed using microwave spectral/temporal, spatial/angular, and orientation/polarization diversity. This imaging technique uses a distributed ring of sensors to detect radiated transmissions scattered from hidden objects. Three-dimensional imaging algorithms have been developed to detect, image, and characterize obscured objects. Ground Penetrating (GPEN), Building Penetrating (BPEN), and Foliage Penetrating (FOPEN) radars are used to irradiate the hidden objects. Distributed sensors are used to collect the tomographic data that are used to detect and image the objects. For examples, tomographic techniques are applied to find buried objects, targets under trees, and objects behind walls. Distributed transmitters and receivers, however, significantly increase unwanted mutual coupling and EM emissions that interfere with signal reception. Examples of objects behind walls and tunnel detection are presented. For the special GPEN radar case, by embedding the transmitters underground, reduced mutual coupling and EM emissions, and improved signal-to-noise ratios, can be achieved. Simple surface SAR experiments over deep mine shafts have been performed to validate the 3D processing algorithms using 2D surface SAR sensor data. 3D WIPL-D models have also been used to simulate the embedded and distributed sensors and to verify the significant enhancement in the received signal-to-noise ratio obtained by burying the radiating ring under the ring of surface sensors. *********************************************************************************************************** Presentation Title: Half Power Beamwidth Measurements of Radiated Emission Antennas for EMC By Dr. Vicente Rodríguez, ETS-Lindgren, Cedar Park, Texas Abstract: Recently CISPR has demanded information on the half power beamwidth of emission measurement antennas. In this presentation, measured patterns for some of the most commonly used types of emission antennas are shown. The antenna samples include double-ridged horn, log periodic, biconical and hybrid type antennas. Additionally, a discussion on the effects of the near field and test set up on the half power beamwidth are presented. Presentation Title: Current EMC Metrology Research at the National Institute of Standards and Technology By Perry Wilson, NIST, Boulder, Colorado

4 Abstract: The National Institute of Standards and Technology (NIST) has a long standing research program in the Electromagnetics Division on metrology related to electromagnetic compatibly. This talk will briefly describe some past highlights and then overview current research efforts. One focus area is field generation and measurement in high multipath environments, as simulated by a reverberation chamber. NIST is working on simulating repeatable multi-path environments over a wide range of K-factors for testing wireless devices, such as cell phones and MIMO systems. Reverberation chamber applications to material shielding measurements and to animal exposure study will also be mentioned. Recent NIST work on a quantum SI traceable field probe based on Rabi frequency measurements will be reviewed. Finally, NIST efforts in the areas of emergency responder communications and RFID standards will be highlighted. *********************************************************************************************************** Presentation Title: Mixed Analog/Digital Circuit Board Design and Layout for EMC By Todd Hubing, Clemson University, Clemson, South Carolina Abstract: Electromagnetic compatibility problems with consumer electronics, automotive systems and information technology equipment are often the result of poor printed circuit board layouts. This is especially true in systems that have both analog and digital circuits on the same board. Examples of mixed-signal boards include control units or power inverters that use digital logic to control the switching of large analog currents, and wireless systems that use digital logic to process radio frequency analog signals. This presentation reviews basic grounding and shielding concepts that are particularly important when designing mixed-signal circuit boards. Common board layout mistakes are discussed and an overall strategy for laying out problem-free mixed-signal boards is provided. *********************************************************************************************************** Presentation Title: Numerical Simulations for EMC Compliance and Standard Development: A New Trend in European Standards By Francesca Maradei, Sapienza University, Rome, Italy Abstract: EMC problems are difficult from the numerical simulation point of view as they involve a very broad band of frequencies and extremes of electrical size. The former requires primarily time-domain models and the latter the capability to address multi-scale problems. Despite EMC problems, simulation is a demanding challenge due to both configuration complexity and tremendous computational resources needed, the everyday increase of computer capability has encouraged the development of reliable prediction models and the use of simulation tools. Over the years, modelling and simulations have become quite common in real-world product design, and lately they are gaining popularity also in EMC compliance and standard developments. This trend has been particularly encouraged by the new European EMC directive that entered into force in 2005, and introduced a new approach based on the simplification of compliance methods, the elimination of conformity assessment bodies, and the allowance of self-compliance. Besides the traditional method based on the application of EMC harmonized standards, the new Directive introduces the possibility of an EMC assessment where no harmonized standards have been applied and the manufacturer applies his own methodology, and a mixed assessment that combines the two previous methods. When harmonized standards are not used, the EMC Directive requires the manufacturer to document all steps taken and decisions made to check the conformity, including EMC design considerations and/or calculation results, statistical evaluations, theoretical studies. In the light of the new approach, many standards are including numerical modelling as a possible instrument to be used to streamline the EMC certification process, and several technical committees are using simulation tools to investigate test setup useful for standard developments. Due to the new European trend, the development of simulation models for the design and certification of complex systems is a new big challenge for the EMC community. This presentation will provide an overview of relevant contributions on modelling and simulations at Sapienza University in Rome, Italy.

5 SPEAKER BIOGRAPHIES Todd Hubing is the Michelin Professor of Vehicle Electronics at Clemson University. He holds a BSEE from MIT, an MSEE from Purdue, and a Ph.D. from North Carolina State University. He began his career as an EMC engineer for IBM in 1982, where he did EMC testing and troubleshooting on a variety of computer and network communications products. In 1989, he became a faculty member at the University of Missouri-Rolla (UMR) where he worked with other faculty and students to analyze and develop solutions for a wide range of EMC problems affecting the electronics industry. Since moving to Clemson in 2006, he has continued his work in electromagnetic compatibility and computational electromagnetic modeling, particularly as it is applied to automotive and aerospace electronics. Dr. Hubing is a Fellow of the Institute of Electrical and Electronics Engineers (IEEE) and a Fellow of the Applied Computational Electromagnetics Society. Dennis Lewis received his BS EE with honors from Henry Cogswell College and his MS Physics from the University of Washington. Dennis is a member of the IEEE and several of its technical societies including the Microwave Theory and Techniques, Electromagnetic Compatibility and the Antennas and Propagations societies. He serves on the IEEE MTT-S subcommittee 11 on microwave measurements and the IEEE 1309 standard committee for field probe calibrations. Dennis is also a senior member of the Antenna Measurements Techniques Association (AMTA). He is an active member and past chairman of the Technical Advisory Committee for North Seattle Community College. Dennis has worked at Boeing for 22 years and is recognized as an Associate Technical Fellow. He currently has leadership and technical responsibility for the primary RF, Microwave and Antenna Metrology labs. His recent interests include aerospace applications of reverberation chamber techniques and microwave measurement systems and uncertainties. Francesca Maradei was awarded a Degree in Electrical Engineering in 1992 from Sapienza University of Rome, a Diplome d'etudes Approfondies (DEA) in Electrical Engineering from the Institut National Polytechnique de Grenoble, France, in 1993, and a Ph.D. in Electrical Engineering from Sapienza University of Rome, in Ms Maradei is currently an Associate Professor at Sapienza University. Ms. Maradei joined the Department of Electrical Engineering of Sapienza University of Rome in 1996 where, before recently becoming a full Professor, she served as an Associate Professor until late She is author of more than 100 papers in the field of numerical techniques and their application to EMC problems (shielding, transmission line analysis, electrostatic discharge, electric fast transient, printed circuit boards, and power distribution networks). Ms. Maradei is the President of the IEEE Electromagnetic Compatibility (EMC) Society for She has been serving in the Board of Directors of IEEE EMC Society since She served as Chapter Coordinator of the IEEE EMCS Society in , and as an Associate Editor of the IEEE Transactions on EMC from 1999 to She serves as reviewer of technical papers for the IEEE Transactions on Electromagnetic Compatibility, on Industry Applications, on Microwave Theory and Techniques, and on Magnetics. She was awarded the 2003 James Melcher Prize Paper Award by the Electrostatic Committee of the IEEE Industry Applications Society; the Oral Presentation Best Paper Award at the International Symposium EMC 94 ROMA, and the Poster Presentation Best Paper Award at the International Symposium EMC EUROPE Johannes Nordgaard (John Norgard) (Georgia Tech-B.S.E.E./1966/Co-Op; Caltech-MS/1967/Applied Physics; Caltech-PhD/1969/Applied Physics) of NASA/JSC is the Chief Engineer for Electromagnetic Environmental Effects (E3). Prior to joining NASA, Dr. Norgard was a Professor at the University of Colorado at Colorado Springs, the President and CEO of ElectroMagnetic Techniques (EMT), Inc., the Chief Scientist of ZeeWaves, Inc., and the Senior Research Scientist for the Radar Techniques Branch of the Sensors Directorate at the Rome Research Site of the Air Force Research Lab [AFRL/RRS (SNRT)]. He has also been a Distinguished Visiting Professor (DVP) at the US Air Force Academy in the Electrical & Computer Engineering Department. He has taught graduate and undergraduate courses in Electromagnetic Field Theory for over 30 years and was the Director of the Electromagnetics Laboratory at the University of Colorado. Before coming to the University of Colorado, he was a Professor in the

6 Electrical Engineering Department at Georgia Tech and was a Post-Doctoral Fellow at the Norwegian Defense Research Establishment (NDRE) in Kjeller, Norway. He worked at the Jet Propulsion Laboratory (JPL) while studying at Caltech and was a Co-Op student at Georgia Tech while working at the Charleston Naval Shipyard (CNS). He has worked on numerous computational electromagnetic problems, including conformal antennas/apertures, strip lines/microstrips, waveguides/cavities and transmission lines, propagation of waves through various plasma media (polar ionosphere, rocket soundings), interaction and coupling of waves to wires (cross-talk, NEMP, and lightning), EMI, EMC, EMS/V, backscatter from clutter targets, ESD, HPM radiation, GPR, RF Tomography, and IR Metrology. He has developed a 2D thermal mapping technique using infrared thermography and microwave holography to measure electromagnetic fields and to verify and validate numerical CEM codes. He has been a Visiting Professor at the Tel-Aviv University and was a member of the technical staff of the Bell Telephone Laboratories. He is an Adjunct Professor at Syracuse University and at the University of Houston. He is a Fellow of IEEE for IR measurements of EM fields, a past member of the Board of Directors for the IEEE/EMC Society serving as the Vice President for Standards, on the Board of Physics and Astronomy for the National Academy of Sciences, Past Chairman for Commission A/Metrology of URSI, and an Associate Editor for the IEEE/EMC Transactions in the area of antenna metrology. He has authored several hundred technical papers, reports, and journal articles and has contributed chapters to four EM books. Vicente Rodríguez attended The University of Mississippi (Ole Miss), in Oxford, MS, where he obtained his B.S.E.E. in During the fall of 1994, he joined the Department of Electrical Engineering at the University of Mississippi as a research assistant. During his tenure at the department, he completed his Master of Science and Doctorate degrees in the area of Engineering Science with an emphasis on Electromagnetic Theory in 1996 and 1999, respectively. In August 1999, Dr. Rodríguez joined the department of Electrical Engineering and Computer Science at Texas A&M University-Kingsville (formerly Texas A&I University) as a Visiting Assistant Professor. In June 2000, Dr. Rodríguez left the academic world when he joined EMC Test Systems (now ETS-Lindgren) as an RF and Electromagnetics engineer. During this time he was involved in the RF anechoic design of several chambers, including rectangular and taper antenna pattern measurement chambers, some of which operate from 100 MHz to 40 GHz. He was the principal RF engineer in the design and fabrication of the large Automotive/EMC/Satellite anechoic test chamber at INPE LIT in Brazil. In September 2004, Dr. Rodríguez assumed the position of Senior Principal Antenna Design Engineer, placing him in charge of the development of new antennas for different applications. Among the antennas developed by Dr. Rodríguez are new broadband double- and quadridged guide horns with a single lobe pattern and high field generator horns for the automotive industry. Dr. Rodríguez s interests include numerical methods in electromagnetics, especially when applied to antenna, EMC and RF/MW absorber design and analysis. Dr. Rodríguez is the author of more than twenty publications and holds patents for hybrid absorber and for a new double-ridged horn antenna. Dr. Rodríguez is a senior member of the IEEE and several of its technical societies including the AP, MTT and the EMC Societies. He is also a senior member of the Antenna Measurements Techniques Association (AMTA) and currently serves on its Board of Directors. Perry F. Wilson (S 78-M 82-SM 93-F 05) received his Ph.D. in Electrical Engineering from the University of Colorado in He joined the Electromagnetics Division at the National Bureau of Standards (NBS) in 1983 as a National Research Council Postdoctoral Fellow. In 1987 he joined the Electromagnetics (EM) Group at the Asea Brown Boveri Corporate Research Center (then Brown Boveri). In 1998 he accepted a position with the Telecommunications Theory Division at the Institute for Telecommunication Sciences. In 1999 he re-joined the Electromagnetics Division at the National Institute of Standards and Technology (formerly NBS) in Boulder, Colorado where he is currently Acting Division Chief for the Electromagnetics Division. Dr. Wilson s research interests have focused on the application of electromagnetic theory to problems in electromagnetic compatibility and metrology. Dr. Wilson is a Fellow of the IEEE, past Editor-in- Chief of the IEEE Transactions on EMC, the current VP for Communications for the IEEE EMC Society, a member of URSI Commission B, and a member of the US IEC TC77B TAG. He received the IEEE EMC Transactions Best Paper Award in 2002 and an IEEE EMC Society Technical Achievement Award in 2010.

7 Seminar Location AGÊNCIA NACIONAL DE TELECOMUNICAÇÕES (ANATEL) CAUS, Qd. 6, Bl. H - Brasília, DF, Brasil Seminar Organizing Committee Arrangements Janet O Neil, ETS-Lindgren Phone: , j.n.oneil@ieee.org Industry Liaison Hernan Urdiales, ETS-Lindgren Mobile Phone: , Hernan.Urdiales@ets-lindgren.com Registration André Kavaliéris, AK Telemedia Phone: , aktelemedia@gmail.com Host Maximiliano Salvadori Martinhão, ANATEL maximiliano@anatel.gov.br CAUS, Qd. 6, Bl. H, 4 Andar - Brasília, DF, Brasil REGISTRATION FEES Deadlines IEEE/AMTA Members Non- Members* Received by March 20 BR$ 30 BR$ 40 Received from March 21 or on site (if space is available) BR$ 45 BR$ 50 *MEMBERSHIP: A credit of BR$ 10 may be applied on site to a one year e-membership in IEEE. STUDENT DISCOUNT: Full time students are eligible for a 50% discount off the registration fees. A valid student identification card must be presented on site to gain access to the program. Name: Title: Company: Street Address: Registration Information Please print clearly City: State: Zip: Daytime Phone: IEEE Member: Y N Member Number: Full Time Student: Y N Student ID Number: Name of University or College:

8 Registration by Registration Total Per Fees Above $ NOTE: Cash payments may be processed during the REGISTRATION from 9:30 to 10:30 on April 4. This registration form MUST BE ON FILE WITH THE REGISTRARS (André Kavaliéris) by March 20 or the higher registration fee effective March 21 will be applied on site. Return to: André Kavaliéris Galvão AK Telemedia Director aktelemedia@gmail.com Cell Phone: Office Phone: Av. Tívoli 67 Vila Betânia São José dos Campos SP CEP: Payment Instructions - Transfer / Deposit to: Bank: CITIBANK Bank # 745 Agency: 054 Account: Address: Av. São João, 994 São José dos Campos São Paulo Brasil NOTE: The registration fee includes refreshment breaks and lunch. The organizing committee reserves the right to substitute speakers, restrict size, or to cancel the seminar. In the event the organizing committee cancels this event, registration fees only will be fully refunded. Individuals canceling their registration prior to March 20 will receive a full refund. No refunds will be made to individuals who cancel their registration after March 20. Substitutions are allowed. Attendance is limited. Registration will be confirmed on a first come, first served basis. Announcement! The Antenna Measurement Techniques Association (AMTA) will hold a one day event at Anatel on Tuesday, 5 April For more information on the technical program and to register, please contact André Kavaliéris, AK Telemedia Phone: , aktelemedia@gmail.com