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Invited Speaker Programme

Mon, March 23
Plenary 09:25   European Antenna Capabilities in Telecommunications, Navigation, Earth Observation and Science
Evert Dudok (President EADS Astrium, Germany)
Antennas are key factors in designing satellite solutions and consequently enormous efforts have been undertaken to push technology. The paper provides the state-of-the-art of flown satellite antenna technology and highlights recent applications on Astrium spacecraft such as Eurostar, TerraSAR-X and TanDEM-X, and Galileo satellites. The paper addresses also the high-performance testing of spacecraft antennas in compact antenna test ranges.
Plenary 10:30   Recent Developments in Antennas and Propagation for Space Missions
Bertram Arbesser Rastburg (ESA - Estec, The Netherlands)
An overview of the most recent successful antennas and propagation activities at the European Space Agency is given. Also the R&D priorities for the coming years are highlighted.
Plenary 11:15   From Antennas to Microwave Systems – LTCC as an Integrating Technology for Space Applications
Ingo Wolff (IMST, Germany)
LTCC technology has large benefits in microwave and millimeterwave applications. In this presentation an overview is given on application of LTCC technology for the integration of microwave and millimeter-wave systems.
Hall A 13:30   Making a Case for Analytical Methods in Field Theory in Today's World of Electromagnetics dominated by Computational EM
Raj Mittra (Penn State University, USA)
We all have seen the trend and the proverbial handwriting on the wall—The EM world is going totally cyber. In this paper we will attempt to make a strong case for a slightly different strategy, where we think “Theory” first, before jumping headlong into the digital world with our eyes closed.
Hall A 14:15   Multi-Scale Electromagnetic Simulation of Large and Complex Systems
Peter Thoma (CST-Computer Simulation Technology AG, Germany); Thomas Weiland (CST, Germany)
The presentation will provide an overview of several EM based system level simulation approaches, highlighting the particular strengths and limitations of each of these techniques. In addition to the analysis of multi-scale problems, the presentation will show a range of methods for large scale system optimization.
Hall A 14:45   The Land Mobile Channel - Recording and Modelling
Erich Lutz (DLR, Germany)
This paper describes measurement and modelling techniques regarding the land mobile satellite channel. The land mobile satellite channel is discussed, and a narrowband channel model is introduced. Measurement results are fitted to the channel model, and resulting model parameters are presented. A four-state model for dual channel diversity is represented.
CC Room 1 14:00   Reflectarray Antennas
Antoine Roederer (Technical University of Delft - IRCTR, The Netherlands)
The paper reviews some innovative concepts and techniques, as well as architectures and realizations developed for both passive and re-configurable reflectarray antennas, mostly for space applications. Some trends and perspectives are discussed in the conclusion.
CC Room 1 14:45   High Gain planar slotted Waveguide Arrays for Micro- and Millimeter-Wave systems
Makoto Ando   (Tokyo Institute of Technology, Japan); Jiro Hirokawa (Tokyo Institute of Technology, Japan)
Single-Layer Waveguide Slot Arrays and Their System application are discussed.
Design of high gain and high efficiency planar antennas is important in millimeter wave communication systems. Unique antennas utilizing cost effective single layer waveguides are developed in Tokyo Tech. Key features as well as the advantages in terms of mass production and fabrication costs, have been demonstrated. The author leads a Millimeter Wave Project which includes indoor and outdoor wireless systems. A test network, utilizing these antennas for the medium range backhaul links, are now installed in Tokyo Tech Oookayama campus. 
Tue, March 24
CC Room 1 14:00   Bandwidth Potential and Electromagnetic Isolation: Tools for Analyzing the Impedance Behaviour of Antenna Systems
Jussi Rahola (Nokia, Finland)
The concepts of bandwidth potential and electromagnetic isolation speed up the comparison of antenna systems by using automatically generated matching circuits. The concept of power waves simplifies the analysis of power propagation in microwave networks.
CC Room 1 14:45   Antenna Challenges in Cognitive Radio
Peter Hall (University of Birmingham, United Kingdom)
Future radio systems, such as software defined radio and cognitive radio concepts, give rise to significant challenges for antennas and in particular for reconfigurable antenna design. In this paper the challenges are outlined and some demonstrator antennas that begin to address these challenges are described.
Hall A 14:00   Constraints and Challenges for Theoretically Modeling Wireless Propagation
Henry Bertoni (Polytechnic University, USA)
Physics based prediction of radio channel characteristics has proven to be statistically meaningful. However achieving high prediction accuracy and finding compelling applications remain elusive. Some of the outstanding issue regarding accuracy will be discussed, and new applications suggested.
Hall A 14:45   Rain Impairment Mitigation
Laurent Castanet (ONERA, France)
The objective of this presentation is to detail the main assets of designing rain attenuation mitigation techniques : what is the impact of the propagation channel, what are the basic principles of such mitigation techniques, how to implement them and the way to assess their performances.
Wed, March 25
CC Room 1 14:00   New Results for Minimum Q, Maximum Gain, and Polarization Properties of Electrically Small Arbitrary Antennas
David Pozar (University of Massachusetts, USA)
This paper will review previous and recent work on the maximum gain and minimum Q of arbitrary lossless antennas, with the goal of trying to eliminate some of the confusion, incompleteness, and erroneous statements that sometimes occur in the literature.
CC Room 1 14:45   Electromagnetic emissions and Performance for HF Proximity RFID
Mike Francis (NIST, USA)
We examined the electromagnetic emissions, and performance of commercial HF proximity RFID systems, including their susceptibility to jamming and eavesdropping. These systems are used in an increasing number of financial, identification, and access control applications. We investigated whether transactions can be detected and read at a distance and how they perform in adverse EM environments.
Hall A 14:00   Speed and Accuracy - The competing Goals of Antenna Metrology - The current State of Art
Doren Hess (MI Technologies, USA)
The past decades have seen the practice of antenna metrology move from an emphasis on testing by real-time plane-wave illumination over to testing of antennas by synthesized plane-waves by near-field scanning. This transition has been driven by the digital revolution and the drastically lower costs of computerized systems that enable near-field scanning. Earlier the emphasis of near-field scanning research was on determining the accuracy achievable by near-field scanning; today, the current emphasis is on enhancing the speed of the scanning process while nevertheless expecting to see acceptable accuracies result. In this presentation I review the progress that has been made and provide examples that illustrate it. I also elaborate on the test applications where real-time plane-wave illumination techniques still dominate. Furthermore, I speculate on the directions in which that future developments may lead us.

Hall A 14:45   Current and future Needs for Satellite Communication Antennas and Antenna Testing
Helmut Wolf   (EADS Astrium, Germany)
Following a brief introduction on requirements and conditions specific to antenna technology on communication satellites and a concise overview on the market trends and needs, potential development needs in the field of antenna technology and antenna testing are discussed.
Thu, March 26
CC Room 1 14:00   Periodic Structures and Artificial Materials: Fundamentals and Applications
Christophe Caloz (Ecole Polytechnique de Montreal, Canada)
This talk will present a perspective overview of recent research advances in EBGs and metamaterials, including fundamental principles, novel structures and properties, exotic concepts, practical applications, and future trends.
CC Room 1 14:45   More than 20 Antenna Elements in Future Mobile Phones, Threat or Opportunity?
Pertti Vainikainen (Helsinki University of Technology (TKK), Finland)
There can be more than 10 different radios in future mobile terminal and some of them will utilise adaptive antenna systems with more than 5 antennas. Thus it is possible that a future terminal device will have more than 20 antennas. The possible options to cope with the situation include inimisation of the size of antenna elements, re-use of the same antennas in many systems, and methods to isolate the antenna elements from each others.

Hall A 14:00   Multifrequency Microwave Radiometer as a Tool to estimate atmospheric and Radiopropagation Parameters
Nazzareno Pierdicca (Uni Roma1, Italy)
Microwave radiometers measure the incoherent radiation impinging on the receiver antenna due to the thermal emission by the surrounding environment. The instrument must be able to discriminate such a "environmental noise" from the instrument thermal noise, which is often much grater than what has to be measured. The thermal emission is dependent on the thermal state of the surrounding environment and its scattering and absorbing properties. When observing the atmosphere at microwave frequencies, those electromagnetic phenomena are related to its thermal state, the content of water vapour and the presence of liquid water, ice and hydrometers. Those phenomena also affect any radiowave propagation link, so that the microwave radiometers can at the same time be a tool for remotely sensing the atmosphere and measuring its propagation effects. A review of the capability of microwave radiometers in these two field will be given, together with some specific experience carried out by the research group.

Hall A 14:45   Use and development of climatological and experimental databases for radiowave propagation modelling in SatCom and SatNav systems
Antonio Martellucci (European Space Agency, The Netherlands)
This paper presents a review of the databases currently used for the assessment of radiowave propagation effects in Satellite Communication (SatCom) and Satellite Navigation (SatNav) systems. This presentation focuses on tropospheric effects but relevant effects are also due to the ionosphere and to the environment around the receiver (i.e. multipath) for mobile and navigation systems.