School of
Information Technology and Electrical Engineering

Speaker: Prof Christophe Fumeaux, University of Adelaide
Seminar Date: Thu, 08/02/2018 - 10:00
Venue: 49-502; AEB Seminar room
Host: Dr Konstanty Bialkowski

Seminar Type:  ITEE Research Seminar

Abstract: 

Dielectric Resonator Antennas (DRAs) have been proposed in the 1980’s as alternatives to conventional low-gain printed-circuit antennas. They are typically composed of a low-loss dielectric block mounted on a ground plane. Their operation exploits the high “radiation losses” of open dielectric resonators operating in their low-order modes. DRAs are characterized by a small size, wide bandwidth, simple feeding and design versatility. Their most decisive advantage however may be their ability to work in various resonant modes (including magnetic-dipole modes) and their high radiation efficiency when realised with low-loss dielectric materials. This last property becomes most relevant as the frequency increases in the millimetre-wave range and above, where conductor losses become significant in conventional metallic resonant antennas.

The presentation will review the DRA-related activities at the University of Adelaide, as a journey through the spectrum. This journey will progress through five orders of magnitude in frequency, starting in the microwave range with wideband geometries, advanced feeding methods, and multi-mode designs. It will continue with examples of high-efficiency millimetre-wave antennas, before extending the considerations into the terahertz range, with demonstration of reflectarrays and antennas based on DRAs. We will then reach the optical regime with descriptions of dielectric resonant nano-structures operating at infrared and visible light towards flat optical components with unusual properties.

Biography: 

Christophe Fumeaux received the Diploma and Ph.D. degrees in physics from the ETH Zurich, Switzerland, in 1992 and 1997, respectively. From 1998 to 2000, he was a Postdoctoral Researcher at the University of Central Florida. In 2000, he joined the Swiss Federal Office of Metrology as a Scientific Staff Member. From 2001 to 2008, he was a Research Associate and lecturer with the Laboratory for Electromagnetic Fields and Microwave Electronics at ETH Zurich. Since 2008, he has been with The University of Adelaide, where he is currently a Professor with the School of Electrical and Electronic Engineering. His current main research interests concern computational electromagnetics, antenna engineering, THz technology and the application of RF design principles to optical micro/nano-structures.

Prof. Fumeaux was the recipient of the ETH Silver Medal of Excellence for his doctoral dissertation. From 2011 to 2015, he was a Future Fellow of the Australian Research Council. He was the recipient/co-recipient of best journal paper awards, including the 2004 ACES Journal and 2014 IEEE Sensors Journal, as well as best conference paper awards at the 2012 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC 2012) and the 17th Colloque International sur la Compatibilité Electromagnétique (CEM 2014). Several of his students have received student awards with joint papers, including IMS 2006 & 2007, iWAT 2014, AMS 2014, IEEE Australia Council 2014, NEMO 2015, ICEAA 2015 & 2016, ASA 2017. He served as an Associate Editor for the IEEE Transactions on Microwave Theory and Techniques from 2010 to 2013. From 2013 to 2016 he served as Senior Associate Editor and later Associate Editor-in-Chief for the IEEE Transactions on Antennas and Propagation. Since March 2017, he is serving as Editor-in-Chief for the IEEE Antennas and Wireless Propagation Letters.