IEEE Swiss MTT - AP - EMC Chapter

Wednesday, April 2, 2008, 10:15

Location: ETZ E7, Gloriastrasse 35, Zürich
Tram Nr. 6 or 5, "Haltestelle Voltastrasse"
See also map on www.ee.ethz.ch/about/bsinformationen_EN

Light propagation in imperfect photonic crystals

Speaker: Prof. Leonid Braginsky , Institute of Semiconductor Physics, Novosibirsk State University, Russia

Abstract: In this talk the envelope function approximation will be used to consider propagation of light in the photonic crystals and its reflection or refraction at the boundary. The approach allows us to start with Bloch solutions for the electrical and magnetic fields in perfect crystals and consider the crystal imperfections as perturbation. In simplest cases the problem can be considered analytically. The problem of boundary conditions for the field envelopes will be discussed.
The envelope function approach will be used to analyze the transmittance spectra of the polystyrene colloid film. We show that small long-range distortion of the crystal lattice can explain peculiarities or the measured spectra; namely, their broadening and increase of the mid-gap transparency.

Biography — Leonid Braginsky was born in Frunze (Kyrgyzstan) in 1956. He received his M.S. degree in theoretical physics from Kyrgyz State University in 1978, and a Ph.D. degree in condensed matter physics from the Institute of Semiconductor Physics (Novosibirsk) in 1999. He is a Senior Researcher at the Institute of Semiconductor Physics and Assistant Professor at the Novosibirsk State University. His research interests include condensed matter theory, electronic and optical properties of low dimensional systems: microstructures, superlattices, nanostructures, quantum dots, and photonic crystals; physical phenomena on an interface, transport and optical phenomena.

Tuesday, February 27, 2008, 10:15

Location: ETZ E7, Gloriastrasse 35, Zürich
Tram Nr. 6 or 5, "Haltestelle Voltastrasse"
See also map on www.ee.ethz.ch/about/bsinformationen_EN

Finite Element Based Analysis of Optical Antennas

Speaker: Dr. Jasmin Smajic , ABB Switzerland Ltd

Abstract: The concept of optical nano antennas has recently attracted considerable attention because it offers a possibility to highly localize the incoming optical radiation in a very narrow volume.
The local field enhancement effect has a wide range of possible applications: optical, biological, and chemical sensors, single molecule detectors, near-field optical microscopy, spectroscopy, etc.
The aim of the talk is to present the results of numerical analyses of 2D and 3D channel plasmon polaritons enhanced optical nano-antennas. The antenna configuration with a single rectangular silver patch with a v-groove at the centre is considered. Our goal is to design the antenna with a strong resonance in the optical frequency range. The antenna resonance search problem is solved using both a brute force scattering analysis for a given frequency range and direct eigenvalue analysis. Several problems of the antenna eigenvalue analysis such as the frequency dependent dielectric permittivity of silver at optical frequencies and frequency dependent absorbing boundary conditions are addressed and solutions are suggested.

Biography — Jasmin Smajic received the Ph.D. and M.Sc. degree in computational electromagnetics from the Department of Electrical Engineering Fundamentals and Measurements of the Faculty of Electrical Engineering and Computing in Zagreb , Croatia in 2001 and 1999 respectively. In 2002 he joined the Computational Optics Group of the Laboratory for EM fields and Microwave Electronics of ETH Zürich as a Postdoctoral Research Fellow where he stayed until 2004. Since 2004 has been with ABB Switzerland Ltd., Corporate Research in Dättwil as a Scientist for EM Field Computations. From 2006 he has also been Visiting Lecturer at ETH Zürich. His research interest covers numerical methods for EM field computations, physical modeling and simulations of micro- and nano-systems, coupled electromagnetic-mechanical analysis, coupled electromagnetic-thermal analysis and optimization. Dr. Smajic is an author of 5 book chapters and more than 40 journal and conference papers. He serves as a reviewer for several scientific journals and as a member of editorial boards of several prominent conferences.

Wednesday, October 31, 2007, 17:15

Location: VAW B1, Gloriastrasse 37/39, Zürich
Tram Nr. 6 or 5, "Haltestelle Voltastrasse"
See also map on www.ee.ethz.ch/about/bsinformationen_EN

Multi-Level Modeling for Complex Microwave/High-Speed Design

Speaker: Prof. Wolfgang J.R. Hoefer, University of Victoria, Canada, IEEE Distinguished Microwave Lecturer

Organized in cooperation with the Fred Tischer Lectures Series

18:15 Apéro after the talk, all guests are invited

Abstract: Complex communication and information systems operating in the Gigahertz range often combine multiple analog and digital functions. The design of such systems must capture all electromagnetic effects and interactions that impact their performance. However, it is impossible to model such systems globally at the field and device levels. Therefore, designers must take a hierarchical approach (top-down design) by which the system is conceived at a high level of abstraction and in behavioral terms. The specifications for its functional components are formulated at the network or circuit level. They, in turn, define a physical structure that requires frequency- or time-domain electromagnetic field analysis. Once the functional components have been realized, their actual physical behavior must be analyzed or measured, including possible parasitic interactions between them, and abstracted into realistic (as opposed to initially specified) behavioral models that accurately predict their impact on overall system performance (bottom-up verification). This methodology also addresses signal integrity, packaging, interconnects, electromagnetic compatibility (EMC), and thermal issues.
The purpose of this lecture is to familiarize our membership with evolving design approaches for systems of large technological and functional complexity, and to demonstrate how microwave modeling and design practices can be integrated into a wider flexible multi-level modeling environment. Techniques for interfacing models at the behavioral, network, circuit and field levels will be demonstrated. They range from order reduction of field models to the coupling of field- and circuit solvers, extraction of equivalent circuits from field solutions and measurements, behavioral representation by neural networks, and the linking of electromagnetic and thermal solvers. The key is to describe different parts of a complex structure by the most appropriate model of lowest possible order, while maintaining a two-way correspondence between functional behavior and physics across the modeling hierarchy.

Biography — Wolfgang J. R. Hoefer received the Dipl.-Ing. degree in Electrical Engineering from the Technical University Aachen, Germany, in 1965, and the D. Ing. degree from the University of Grenoble, France, in 1968. He holds an honorary doctorate (Dr.-Ing. h.c.) from the Technical University of Munich, Germany, since 2007.
From 1968 to 1969, he was a Lecturer at the Institut Universitaire de Technologie de Grenoble and a Research Fellow at the Institut National Polytechnique de Grenoble, France. In 1969 he joined the faculty in the Department of Electrical Engineering, the University of Ottawa, Canada, where he was a Professor until March 1992. In April 1992 he was selected to hold the NSERC Industrial Research Chair in RF Engineering at the University of Victoria, Canada. He headed the Computational Electromagnetics Research Laboratory (CERL) in the Department of Electrical and Computer Engineering in Victoria until July 2006, when he became Professor Emeritus. He has held visiting appointments in Germany (Space Division of AEG-Telefunken in Backnang, the Ferdinand Braun Institute in Berlin, and the Technical University of Munich), in France (Institut National Polytechnique de Grenoble and University of Nice - Sophia Antipolis), Canada (Space Electronics Directorate of the Communications Research Centre in Ottawa), the USA (Georgia Institute of Technology in Atlanta), Italy (University of Rome “Tor Vergata” and the University of Perugia), and Switzerland (ETH Zürich).
Dr. Hoefer was the Chair and Co-Chair of the MTT-15 Technical Committee on Field Theory from 1990 through 2004, and Associate Editor (Electromagnetics) of the IEEE MTT Transactions from 1998 to 2000. He is the co-founder and managing editor of the International Journal of Numerical Modelling since 1988. He serves on the editorial and advisory boards of several other scientific journals and organizations. He is a Fellow of the Royal Society (the Academies of Arts, Humanities and Sciences) of Canada, and a Life Fellow of the IEEE. He is a distinguished Microwave Lecturer of the MTT Society (2005 to 2007), the recipient of the 2006 Distinguished Educator Award of the IEEE MTT Society, and the President of Faustus Scientific Corporation.

Tuesday, October 23, 2007, 16:00

Location: Room CO 010, EPF Lausanne
See also map on http://plan.epfl.ch/index.html?room=co010

Multi-Level Modeling for Complex Microwave/High-Speed Design

Speaker: Prof. Wolfgang J.R. Hoefer, University of Victoria, Canada, IEEE Distinguished Microwave Lecturer

17:15 Apéro after the talk, all guests are invited

Speaker: Dr. Vadim V. Yakovlev, Dept. of Mathematical Sciences, Worcester Polytechnic Institute, MA

Abstract: The inclusion of resourceful full-wave 3D electromagnetic simulators in artificial neural network (ANN) optimization of microwave structures is generally considered unfeasible due to the high computational cost. This talk presents an original algorithm of RBF network optimization backed by 3D full-wave FDTD simulation and suitable for viable CAD of complex microwave systems. The key feature of the optimization is the dynamic generation of as much FDTD data as the network needs to find a solution satisfying the constraints or the stopping criteria. Other functions contributing to the reduction of computational cost include radius optimization of the Gaussian RBF, optimization of the regularization parameter, etc. Performance of the algorithm is illustrated by its application to a double waveguide window, a loaded microwave oven and filters. A special extension of the algorithm for simultaneous optimizing antenna's return loss and radiation patterns is finally discussed. In all illustrations, the ANN-based approach demonstrates excellent generalizing capabilities with the use of relatively small data sets, and the optimized solutions are obtained within fairly reasonable time.

Biography — Vadim Yakovlev received the Ph.D. degree in radio physics from the Institute of Radio Engineering and Electronics (IRE) of the Russian Academy of Sciences (RAS), Moscow, in 1991. He was with this research institute until 1996 holding positions from Junior to Senior Research Scientist. In 1993, he worked as Visiting Researcher at Centre "Les Renardières", Electricité de France. In 1996, he joined the Department of Mathematical Sciences, Worcester Polytechnic Institute, Worcester, MA as a NATO/NSF Fellow. Dr. Yakovlev has been with this Department since and currently holds a position of Research Associate Professor. He is Head of the Industrial Microwave Modeling Group which he established in 1999 as a division of the WPI's Center for Industrial Mathematics and Statistics. His research interests are currently focused on modeling, optimization and inverse problems in high frequency electromagnetics, non-invasive reconstruction of media parameters, coupled electromagnetic-thermal problems, microwave power engineering, and broadband/multi-band antennas. Dr. Yakovlev is an author of more than 80 papers. He is a member of IEEE, International Microwave Power Institute (IMPI) (and a member of IMPI Technical Advisory Board), Association for Microwave Power in Europe for Research and Education (AMPERE), and the Massachusetts Institute of Technology (MIT) Electromagnetics Academy. He serves as a reviewer for several journals and as a member of program committees of several conferences.

Thursday, May 10, 2007, 17:15

Location: ETF E1, Sternwartstrasse 7, Zürich
Tram Nr. 6 or 5, "Haltestelle Voltastrasse"
See also map on www.ee.ethz.ch/about/bsinformationen_EN

3D Propagation Modeling and Characteristics for High Speed Mobiles

Speaker: Prof. Dr.-Ing. Werner Wiesbeck, Inst. für Höchstfrequenztechnik und Elektronik, Universität Karlsruhe (TH)

Organized in cooperation with the Fred Tischer Lectures Series

Abstract: In existing wireless telecommunication systems a user can choose either a high data rate or a high mobility. For various applications it would be desirable to have both at the same time: the freedom to move with a very high velocity without loosing the high data rate. Systems based on Orthogonal Frequency Division Multiplexing (OFDM) seem to be suitable to satisfy these conditions. However, the high-speed aspect has to be considered more closely. High-speed links between receivers and transmitters cause varying Doppler , delay and angular spread, which may result in inter-carrier interference (ICI) and inter-symbol interference (ISI). ICI and ISI are both a challenge and a limiting factor for a wireless communication system.
Applications for high-speed mobile stations are for example on planes, fast cars, high-speed trains and so on. Several scenarios are chosen for the simulations and partly verified by measurements. For cars these are urban and a highway scenarios, for trains high speed tracks with buildings or forest environment are chosen. For the wave propagation a 3D ray-tracing tool, based on the theory of geometrical optics (GO) and the Uniform Theory of Diffraction (UTD), is used. The model includes modified Fresnel reflection coefficients for the reflection and the diffraction based on the UTD. The propagation channels are characterized by delay spread, Doppler spread and angular spread for different situations. These statistical parameters are compared to measurements. Dynamic simulations will be illustrated by movies. The traffic scenarios are real world with multiple lanes, line of sight and non line of sight.

6:00 Apéro after the talk, all guests are invited

Biography — (SM 87, F 94) received the Dipl.-Ing. (M.S.E.E.) and the Dr.-Ing. (Ph.D.E.E.) degrees from the Technical University Munich in 1969 and 1972, respectively. From 1972 to 1983 he was with AEG-Telefunken in various positions including that of head of R&D of the Microwave Division in Flensburg and marketing director Receiver and Direction Finder Division, Ulm. During this period he had product responsibility for mm-wave radars, receivers, direction finders and electronic warfare systems. Since 1983 he has been Director of the Institut für Höchstfrequenztechnik und Elektronik (IHE) at the University of Karlsruhe (TH), where he had been Dean of the Faculty of Electrical Engineering. Research topics include radar, remote sensing, wireless communication and antennas. In 1989 and 1994, respectively, he spent a six months sabbatical at the Jet Propulsion Laboratory, Pasadena. He is a member of the IEEE GRS-S AdCom (1992 - 2000), Chairman of the GRS-S Awards Committee (1994 – 1998, 2002 - ), Executive Vice President IEEE GRS-S (1998 - 1999), President IEEE GRS-S (2000 - 2001), Associate Editor IEEE-AP Transactions (1996-1999), past and present Treasurer of the IEEE German Section (1987-1996, 2003-2007). He has been General Chairman of the '88 Heinrich Hertz Centennial Symposium, the '93 Conference on Microwaves and Optics (MIOP '93), the Technical Chairman of International mm-Wave and Infrared Conference 2004, Chairman of the German Microwave Conference GeMIC 2006 and he has been a member of the scientific committees and TPCs of many conferences. For the Carl Cranz Series for Scientific Education he serves as a permanent lecturer for radar system engineering, wave propagation and mobile communication network planning. He is a member of an Advisory Committee of the EU - Joint Research Centre (Ispra/Italy), and he is an advisor to the German Research Council (DFG), to the Federal German Ministry for Research (BMBF) and to industry in Germany. He is the recipient of a number of awards, lately the IEEE Millennium Award, the IEEE GRS Distinguished Achievement Award, the Honorary Doctorate (Dr. h.c.) from the University Budapest/Hungary and the Honorary Doctorate (Dr.-Ing. E.h.) from the University Duisburg/Germany. He is a Fellow of IEEE, an Honorary Life Member of IEEE GRS-S, a Member of the Heidelberger Academy of Sciences and a Member of acatech (German Academy of Engineering and Technology).

Abstract: After more than 30 years of niche applications in the space sciences area, the field of Terahertz Technology is entering a true renaissance. While major strides continue to be made in submillimeter wave astronomy and spectroscopy, the past few years have seen an unprecedented expansion of terahertz applications, components and instruments. Broad popular interest in this unique frequency domain has emerged for the first time, spanning applications as diverse as biohazard detection and tumor recognition. Already there are groups around the world who have applied specialized terahertz techniques to disease diagnostics [1], recognition of protein structural states [2], monitoring of receptor binding [3], performing label-free DNA sequencing [4] and visualizing contrast in otherwise uniform tissue [5]. A commercial terahertz imaging system has recently started tests in a hospital environment [1] and new high sensitivity imagers with much deeper penetration into tissue have begun to emerge [6]. Solicitations for more sophisticated instruments and enabling terahertz components have filtered into US agency proposal calls from DoD and NASA, to NSF and NIH, and many new research groups have sprung up, both in the US and in Europe and Asia . This talk will broadly survey terahertz technology from its cradle applications in space science and spectroscopy to more recent biomedical and chemical uses.

Peter H. Siegel obtained a BA in astronomy and physics from Colgate University, Hamilton NY in 1976, a Masters in Physics and a PhD in Electrical Engineering from Columbia University in 1978 and 1983 respectively. He has been involved in the analysis and development of millimeter-and submillimeter-wave sensors for over 30 years. He began his career in millimeter wave technology in 1975 as a summer student at the NASA Goddard Institute for Space Studies in New York City, working with astronomer Patrick Thaddeus and electrical engineer Tony Kerr on low noise receivers. In 1983 he moved up in frequency to the submillimeter, working as a National Research Council Fellow on THz planar antenna arrays. From 1984-87 Dr. Siegel was employed at the National Radio Astronomy Observatory where he worked with Sandy Weinreb and the millimeter wave receiver group in Charlottesville Virginia, maintaining the Kitt Peak National Radio Observatory. He moved to JPL in 1987 to work on advanced technology development for NASA astrophysics applications. At JPL, Dr. Siegel naturally became involved in several satellite instrument applications, including a very successful Earth observing platform that returned early data on the Antarctic ozone hole and chemical processes in the stratosphere. In 1993 he founded the JPL Submillimeter Wave Advanced Technology team (SWAT), a group of 25 engineers and scientists working on the development of submillimeter-wave technology for NASA's near and long term astrophysics, Earth remote sensing, and planetary mission applications. At JPL, Dr. Siegel has led or co-I'd more than sixty R&D programs as well as developing and delivering hardware for four major space flight instruments. He currently holds a position as a Senior Research Scientist for Submillimeter Wave Technology and Instruments. In 2002 Dr. Siegel joined the staff at Caltech as a Senior Research Scientist at the Beckman Institute, Division of Biology, where he is working on biological applications of THz technology. He maintains a joint appointment as the Technical Group Supervisor for SWAT at JPL, where he continues to propose and work on space applications of THz technology. Dr. Siegel and his JPL team have won numerous awards for their technical achievements and are internationally recognized as leaders in THz technology development. Dr. Siegel is a member of AAAS, an elected Fellow of the IEEE, Chair of IEEE MTT Committee 4 - Terahertz Technology and Applications, Vice-Chair of the International Organizing Committee of the Symposium on Infrared and Millimeter Waves (IRMMW), and Organizer of the 33^rd IRMMW & 16^th THz Electronics Symposium to be held at Caltech in Pasadena, California in 2008 – to which you are all invited!

[1] R.M. Woodward, V.P. Wallace, R.J. Pye, B.E. Cole, D.D. Arnone, E.H. Linfield and M. Pepper, “Terahertz Pulse Imaging of ex vivo Basal Cell Carcinoma,” J. of Inv. Dermatology, vol. 120, no. 1, Jan. 2003, pp. 72-78.

[2] A.Markelz, S. Whitmore, J.Hillebrecht and R.Birge, “THz time domain spectroscopy of bimolecular conformational modes,” Physics in Medicine and Biology, vol. 47, no. 21, 7 Nov. 2002, pp.3797-3805.

[3] S.P. Mickan, A. Menikhu, H. Liu, C.A. Mannella, R. MacColl, D. Abbott, J. Munch and X-C Zhang, “Label-free bioaffinity detection using terahertz technology,” Physics in Medicine and Biology, vol. 47, no. 21, 7 Nov. 2002, pp.3789-3795.

[4] P. Haring Bolivar, M. Brucherseifer, M. Nagel, H. Kurz, A. Bosserhoff and R. Buttner, “Label-free probing of genes by time domain terahertz sensing,” Physics in Medicine and Biology, vol. 47, no. 21, 7 Nov. 2002, pp.3815-3821.

[5] K.J. Seibert, T. Loffler, H. Quast, M. Thomson, T. Bauer, R. Leonhardt, S. Czasch and H.G. Roskos, “All-optoelectronic continuous wave THz imaging for biomedical applications,” Physics in Medicine and Biology, vol. 47, no. 21, 7 Nov. 2002, pp.3743-3748.

[6] P.H. Siegel and R.J. Dengler, “Terahertz Heterodyne Imager for Biomedical Applications,” SPIE Conf. on THz and GHz Electronics and Photonics III, vol. 5354, San Jose, CA, Jan 25-26, 2004.

Location: ETH HG G60 (Aula), Rämistrasse 101, Zürich
Tram Nr. 6 or 9 or 10, "Haltestelle ETH/Universitätsspital "
See also map on www.ethz.ch/about/location/ethzentrum

RF/DSP co-designed power amplifiers/transmitters
for advanced wireless and satellite applications

Speaker: Prof. F. Ghannouchi

Abstract: The wireless and satellite communications communities have always been looking for power and spectrum efficient amplification systems. The design of such power amplifiers has to be considered closely together with the system architecture in order to ensure optimal system level performances in term of linearity and power efficiency. This implies the use of adequate transmitter's architectures that convert the analog base band information to architecture dependent amplifier driving signals such as sigma-delta, EE&R, and LINC architectures. This seminar layouts the principles behind software enabled linear and highly efficient power amplifiers/transmitters sub-systems. Design and practical realization of RF/DSP co-designed transmitters for MC-WCDMA and OFDM wireless applications will be presented.

Biography — Fadhel Ghannouchi received the B.Eng. degree in engineering physics and the M.S. and Ph.D. degrees in electrical engineering from the University of, Montreal, Quebec, Canada, in 1983, 1984, and1987, respectively. He is currently an iCORE Professor, Canada Research Chair and head of Intelligent RF Radio Laboratory, (iRadio Lab) Electrical and Computer Engineering Department, The University of Calgary, Alberta. He was with Ecole Polytechnique de Montreal until 2005 where he has taught microwave theory and techniques and RF communications systems since 1984. He held several invited positions at several academics and research institutions in Europe, North America, Japan and North Africa. He has provided consulting services to a number of microwave and wireless communications companies. His research interests are in the areas of microwave instrumentation and measurements, nonlinear modeling of microwave devices and communications systems, design of power and spectrum efficient microwave amplification systems and design of intelligent RF transceivers for wireless communications. His research led to over 300 publications and 7 patents.

RF Circuits for High Temperature Sensor Communications Applications

Speaker: Dr. George E. Ponchack, NASA Glenn Research Center

Abstract: Commercial, space, and military markets are increasingly relying on sensors to monitor and improve system performance. A growing subset of the sensor market is for systems that must operate at high temperature to improve efficiency, reduce pollution, and/or control operation cost. For example, automobile engine and brake sensors are required to reduce engine pollution and monitor brake wear and slippage, temperature and position sensors on bit for oil drilling and mining are required to monitor the drill wear, aircraft engine sensors are required to increase efficiency and reduce pollution, and spacecraft health monitoring sensors are required to detect spacecraft damage. In each of these applications, hardwired sensors are currently used, but radio frequency communications with the sensor would reduce the system weight and complexity. In this presentation, the characteristics of microwave transmission lines, passive components, and oscillators are presented over the temperature range of 30 to 500 °C.

Large-Signal Operation of Microwave AlGaN/GaN Field-Effect Transistors (HFET’s)

Speaker: Dr. Robert J. Trew, North Carolina State University, Raleigh

Abstract: Recent developments in wide bandgap semiconductor devices provide the opportunity to design and fabricate microwave transistors that demonstrate performance previously available only from microwave tubes. The most promising electronic device for RF power applications is an HFET fabricated using the AlGaN/GaN heterojunction. These devices can sustain bias voltages significantly in excess of what can be applied to standard semiconductor devices, and AlGaN/GaN HFET’s have demonstrated RF output power density on the order of 10-12 W/mm of gate periphery when biased at Vds=40v, and over 30 W/mm when biased at Vds=120v. The AlGaN/GaN HFET’s should produce useful performance well into the mm-wave region, and potentially as high as 100 GHz. However, the high voltage operation of these devices introduces a variety of physical effects that currently limit RF performance, linearity, and device reliability. Also, an IMPATT-mode operation of these devices has been discovered under high voltage operation, and this mode has implications for practical utilization of these devices. This presentation will focus upon the RF large-signal operation of these devices, with an emphasis upon the physical effects associated with various charge trapping, surface, and space-charge phenomena that affect the RF performance of these devices. Engineering approaches to controlling these performance limiting effects will be discussed.

Biography — Robert J. Trew received the Ph.D. degree from the University of Michigan in 1975. He is currently the Alton and Mildred Lancaster Professor of Electrical and Computer Engineering and Head of the ECE Department at North Carolina State University, Raleigh. From 1997-2001 he was Director of Research for the U.S. Department of Defense, with management oversight responsibility for the $1.3 billion yearly basic research programs of DoD. Dr. Trew served as Vice-Chair of the U.S. Government interagency committee that planned the U.S. National Nanotechnology Initiative (NNI). Dr. Trew is a Fellow of the IEEE, and was the 2004 President of the Microwave Theory and Techniques Society. He was Editor-in-Chief of the IEEE Transactions on Microwave Theory and Techniques from 1995 to 1997, and from 1999-2002 was founding Co-Editor-in-Chief of the award winning IEEE Microwave Magazine. Dr. Trew has twice been named an IEEE MTT Society Microwave Distinguished Lecturer, and is currently serving his second term in this capacity. Dr. Trew has received numerous awards. He has over 140 publications, 15 book chapters, and has given over 340 technical presentations. Dr. Trew has seven patents.

Flip-Chip for Millimeter-Wave and Broadband Packaging
Speaker: Wolfgang Heinrich, Ferdinand-Braun-Institut (FBH), Berlin/Germany

Abstract: Emerging markets for mm-wave wireless and sensor systems as well as high bit-rate components demand for cost-effective packaging solutions. Flip-chip is one of the most promising approaches in this regard combining high-volume potential with excellent high-frequency performance. The talk presents the different flip-chip concepts in use, focusing on the microwave characteristics and approaching the subject from the designer's point of view. Basic electromagnetic properties of the interconnects as well as consequences for chip and package design are discussed. As carrier substrates, conventional ceramics, thin-film, and LTCC-multilayer approaches are covered. Experimental results for various applications document feasibility and capabilities in the frequency range up to 100 GHz.

Location: VAW, auditorium B1, Gloriastrasse 37/39, Zürich
Tram Nr. 6 or 5, "Haltestelle Voltastrasse"
See also map on www.ee.ethz.ch/about/bsinformationen_EN

Remote sensing der Atmosphäre mit Mikrowellen
Speaker: Prof. Niklaus Kämpfer, Universität Bern

Messmethoden im Bereich Millimeter- und Submillimeterwellen
Speaker: Dr. Axel Murk, Universität Bern

VNA measurements up to 650 GHz by Anritsu
Speaker: Stefan Junker, Exanovis AG