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Wireless autonomous surface acoustic wave (SAW) sensors offer
highest flexibility for modern sensor systems. Because no
battery or wiring is required for power-supply and communication
tasks they can advantageously be employed for nearly all kinds
of short-range identification and measurement applications,
where the use of conventional sensors is uncomfortable, impossible
or dangerous, e.g. on moving or rotating parts or in industrial
process chambers. In the present work the basics of SAW-based
radio sensor systems are reviewed and different examples out
of a manifold of possible applications (SAW identification
and wireless sensing of temperature, torque, and humidity
) will be given.
Biography
Robert Weigel was born in Ebermannstadt, Germany, in 1956.
He received the Dr.-Ing. and the Dr.-Ing.habil. degrees, both
in electrical engineering and computer science, from the Munich
University of Technology in Germany, in 1989 and 1992, respectively.
From 1982 to 1988, he was a Research Engineer, from 1988 to
1994 a Senior Research Engineer, and from 1994 to 1996 a Professor
for RF Circuits and Systems at the Munich University of Technology.
In winter 1994/95 he was a Guest Professor for SAW Technology
at Vienna University of Technology in Austria. Since 1996,
he has been Director of the Institute for Communications and
Information Engineering at the University of Linz, Austria.
In August 1999, he co-founded DICE – Danube Integrated
Circuit Engineering, Linz, meanwhile an Infineon Technologies
Development Center which is devoted to the design of mobile
radio circuits and systems. In 2000, he has been appointed
a Professor for RF Engineering at the Tongji University in
Shanghai, China. In 2002, he has moved to Erlangen, Germany,
to overtake the Directorship of the Institute for Electronics
Engineering at the University of Erlangen-Nuremberg.
He has been engaged in research and development on microwave
theory and techniques, integrated optics, high-temperature
superconductivity, SAW technology, and digital and microwave
communication systems. In these fields, he has published more
than 350 papers and given more than 180 international presentations.
His review work includes European and Asian research projects
and international journals.
Dr. Weigel is a Fellow of IEEE, a member of the Institute
for Components and Systems of The Electromagnetics Academy,
and a member of the German ITG and the Austrian ÖVE.
Within IEEE MTT-S, he is Chair of the Austrian COM/MTT Joint
Chapter, Region 8 Coordinator, Distinguished Microwave Lecturer,
and Vice-Chair of MTT-2 Microwave Acoustics.
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