Seminar Announcement: Prof. Danilo ERRICOLO (UIC) @ Trento

Benchmarking computational electromagnetics with exact analytical solutions of canonical electromagnetic scattering problems

Speaker: Prof. Danilo ERRICOLO (University of Illinois at Chicago, Chicago, U.S.A.)

Date: 11 September 2017 @ 16:00

Location: Room OFEK – Polo Scientifico F. Ferrari – Povo

Abstract

Solutions of canonical electromagnetic scattering problems may be used to benchmark computational electromagnetics methods. While the list of known exact analytical solutions is limited, this list extends significantly beyond classical solutions for the scattering from metallic bodies such as the sphere, the 2D metallic wedge, and the infinite circular cylinder. In fact, recently developed exact solutions exist for geometries involving cavities, sharp edges, apertures, and propagation across different media. Unfortunately, many articles discussing computational electromagnetics solutions frequently propose validations or benchmarks with geometries as simple as a sphere and then jump into comparisons with very complex objects such as a numerical model of an airplane. In such cases, validations with simpler, but yet challenging benchmarks should provide additional evidence of their accuracy. In many cases, comparisons with exact solutions for benchmarking purposes are quite straightforward to implement.

 

Short Bio

Danilo Erricolo received the Laurea degree of Doctor (summa cum laude) in electronics engineering from the Politecnico di Milano, Milan, Italy, in 1993, and the Ph.D. degree in electrical engineering and computer science from the University of Illinois at Chicago (UIC), Chicago, IL, USA, in 1998. In 2009, he was an Air Force Faculty Fellow with the Air Force Research Laboratory, Wright Patterson Air Force Base, Dayton, OH, USA. He is currently a Professor with the Department of Electrical and Computer Engineering, UIC, where he is also the Director of the Andrew Electromagnetics Laboratory and an Adjunct Professor of bioengineering. He developed a 2-D simulator for the propagation of the electromagnetic field in urban environments that could consider base-stations located below or above the average rooftop height, thanks to introduction of uniform theory of diffraction double wedge diffraction coefficients. He contributed to the development of many exact solutions of canonical scattering problems, which advance the understanding of scattering from analytically treatable geometries and provide benchmarks for computational electromagnetics software. As part of these studies, he wrote software for the computation of Mathieu functions that has applications beyond the field of electrical engineering. He also developed an acceleration method for series expansions containing Mathieu, prolate, and oblate spheroidal functions, which impacts all applications of these functions, such as in porous media flow. He contributed to the validation of the incremental theory of diffraction by developing comparisons with exact canonical solutions and experiments. He also applied his research to medical applications, specifically in the field of magnetic resonance imaging. He co-authored the first papers on RF tomography for applications to subsurface sensing and is currently engaged with its extension to other environments. He has authored or co-authored more than 240 publications in refereed journals and international conferences. His current research interests include electromagnetic propagation and scattering, highfrequency techniques, wireless communications, electromagnetic compatibility, the computation of special functions, and magnetic resonance imaging. Dr. Erricolo is a member of Eta Kappa Nu and was an elected full member of the U.S. National Committee (USNC) of the International Union of Radio Science (URSI) Commissions B, C, and E. He served as the Chair from 2009 to 2011, the Vice Chair from 2006 to 2008, and the Secretary of the USNC-URSI Commission E on Electromagnetic Environment and Interference from 2004 to 2005. From 2009 to 2014, he served as the Chair of the USNC-URSI E. K. Smith Student Paper Competition. He also served as the Vice-Chair of the Local Organizing Committee of the XXIX URSI General Assembly, held in Chicago, in 2008. He serves as a member at Large of USNC-URSI from 2012 to 2017, a committee of the U.S. National Academies. He was the General Chairman of the 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, held in Chicago, in 2012. From 2011 to 2016, he was the Chair of the Chicago Joint Chapter of the IEEE Antennas and Propagation Society (AP-S) and the IEEE Microwave Theory and Techniques Society. Since 2005, he has been serving the IEEE AP-S Future Symposia Committee, and since 2006, he has been serving as a USNC-URSI Representative on the AP-S/USNC-URSI Joint Meetings Committee. He was an elected member of the Administrative Committee of the IEEE AP-S from 2012 to 2014 and served as the Chair of the Distinguished Lecturer Program of the IEEE AP-S from 2015 to 2016. He has served on more than 40 conference Technical Program Committees, chaired over 60 conference sessions, and organized more than 20 special sessions at international scientific conferences. He was an Associate Editor of the IEEE Antennas and Wireless Propagation Letters from 2002 to 2014, the IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION from 2013 to 2016, and Radio Science from 2014 to 2016. In 2006, he was the Guest Editor of the “Special Issue on RF Effects on Digital Systems” of the Electromagnetics Journal, and in 2012, he was a Lead Guest Editor of the “Special Issue on Propagation Models and Inversion Approaches for Subsurface and Through Wall Imaging” of the International Journal of Antennas and Propagation. Since Aug. 2016 he is the Editor-in-Chief of the IEEE Transactions on Antennas and Propagation.

Notes: Additional information can be found at www.eledia.org

Contact: Prof. Giacomo Oliveri (giacomo.oliveri@unitn.it)

Seminar Announcement: Prof. Yiannis Vardaxoglou (Loughborough University) @ Turin

Meta-Atoms for 3D Printing Metamaterials

Prof. Yiannis Vardaxoglou, Fellow IEEE

Head of the Wireless Communications Research Group

Loughborough University, UK

 

Date: Thursday 14/09/2017 at 3.00 pm

Venue: Room “Nyquist” (DET meeting room, Cittadella Politecnica, 4th floor)

Abstract

In this seminar, Prof. Vardaxoglou will introduce the concept and uses of MeTa-Atoms (MTAs) in electromagnetic and egineered metamaterials. MTAs are meso scale inclusions in a host material. These meta-atoms could be varied in constitution and geometry to augment a variety of artificial and novel magneto-dielectric properties. Various 3D-printed multi-layered metamaterials with different periodicities fo dielectric or metallic inclusions will be shown. The effect of the periodicity (space between adjacent elements) on the effective metamaterials properties is examined by placing the 3D-printed samples in a waveguide simulator or on a resonator measuring system. Some of these structures have already been applied in engineering applications such as antennas, microwave lenses and electronic devices.

Biography

Yiannis Vardaxoglou is the Head of the Wireless Communications Research Group (WiCR) researching wide- ranging topics applicable to cutting-edge wireless communications technology. His research focuses primarily on metamaterial structures for electronic devices, antennas in microwave and mm-wave engineering. He has authored 300 publications and several book chapters and a pioneering book on Frequency Selective Surfaces. WiCR collaborates with many internationally leading universities and companies and is home to the internationally renowned Loughborough Antennas & Propagation Conference (LAPC).

For any further information please contact prof. Paola Pirinoli (e-mail: paola.pirinoli@polito.it)

Seminar Announcement: Prof. Fan YANG (Tsinghua University) @ Turin

The IEEE AP/ED/MTT North Italy Chapter is pleased to announce that Prof. Fan YANG from the Tsinghua University, China, will give a seminar titled “Surface Electromagnetics: From EBG to Metasurface and Beyond” at the Politecnico di Torino.

Where:Room “Nyquist” (DET meeting room, Cittadella Politecnica, 4th floor)

When: 11 September 2017 – 10.00

Abstract
From frequency selective surfaces (FSS) to electromagnetic band-gap (EBG) ground planes, from impedance boundaries to Huygens metasurfaces, novel electromagnetic surfaces have been emerging in both microwaves and optics. Many intriguing phenomena occur on these surfaces, and novel devices and applications have been proposed accordingly, which have created an exciting paradigm in electromagnetics, so called “surface electromagnetics”. This seminar will review the development of electromagnetic surfaces, as well as the state-of-the art concepts and designs. Detailed presentations will be provided on their unique electromagnetic features. Furthermore, a wealth of antenna examples will be presented to illustrate promising applications of the surface electromagnetics in antenna engineering.

Biography
Prof. Fan Yang received the B.S. and M.S. degrees from Tsinghua University, and the Ph.D. degree from University of California at Los Angeles. Currently, he is a Professor at Tsinghua University and serves as the Director of the Microwave and Antenna Institute. Dr. Yang’s research interests include antennas, surface electromagnetics, computational electromagnetics, and applied electromagnetic systems. He has published four books, six book chapters, and over 300 journal articles and conference papers. Dr. Yang serves as an Associate Editor for IEEE Trans. Antennas Propagation, Associate Editor-in-Chief for Applied Computational Electromagnetics Society (ACES) Journal, and TPC chair of 2014 IEEE AP-S International Symposium.

Contact Point: Prof. Paola PIRINOLI (paola.pirinoli@polito.it)

Distinguished Lecturer Seminar Announcement: Dr. Karu ESSELLE

The IEEE AP/ED/MTT North Italy Chapter is pleased to announce that Prof. Karu ESSELLE (IEEE AP-S Distinguished Lecturer) from Macquarie University, Sidney, will give a Distinguished Lecturer seminar titled “Many names, many advantages – Are resonant cavity antennas the killer planar space-saving approach to get 15-25 dBi gain?” at the Politecnico di Torino.

Where: Maxwell room, Dept. of Electronics and Telecommunications, Politecnico di Torino, C.so Duca degli Abruzzi, 24, Torino, Italy.

When: Friday, September 8 2017, h. 10:00-12:00

Additional Details: please see https://meetings.vtools.ieee.org/m/46796

Contact Point: Prof. Ladislau MATEKOVITS (ladislau.matekovits@polito.it)

Distinguished Lecturer Seminar Announcement: Dr. Sudhakar RAO

The IEEE AP/ED/MTT North Italy Chapter is pleased to announce a Distinguished Lecturer seminar. Dr. S. Rao (IEEE AP-S Distinguished Lecturer) from Northrop Grumman Aerospace Systems will give a seminar titled “Advanced Antenna Systems for Satellite Communication Payloads at the ELEDIA Research Center (ELEDIA@UniTN, University of Trento, Trento, Italy).

Where: Room “Ofek”, Povo 1 Building, Università di Trento, Via Sommarive 5, I-38123 Trento

When: Wednesday, May 5 2017, h. 11:00-12:00

Additional Details: please see www.eledia.org

Contact Point: Prof. Giacomo OLIVERI (giacomo.oliveri@unitn.it)

Distinguished Lecturer Seminar Announcement: Prof. N. B. Carvalho

The IEEE AP/ED/MTT North Italy Chapter is pleased to announce a Distinguished Lecturer seminar. Prof. N. B. Carvalho (IEEE MTT-S Distinguished Lecturer) from the Universidade de Aveiro will give a seminar titled “ENERGY EFFICIENT FUTURE WIRELESS COMMUNICATIONS at the ELEDIA Research Center (ELEDIA@UniTN, University of Trento, Trento, Italy).

Where: Room “Ofek”, Povo 1 Building, Università di Trento, Via Sommarive 5, I-38123 Trento

When: Wednesday, April 5 2017, h. 11:00-13:00

Additional Details: please see www.eledia.org

Contact Point: Prof. Giacomo OLIVERI (giacomo.oliveri@unitn.it)

Seminar Announcement: Prof. Ke WU (2016 MTT-S President) @ Pavia

pwuThe IEEE AP/ED/MTT North Italy Chapter is pleased to announce that Prof. Ke WU (2016 President of IEEE Microwave Theory and Techniques Society) from the Ecole Polytechnique (University of Montreal), Canada will give a seminar titled “Millimeter-wave Identification, Sensing and Tracking (MIST) Systems for Future Internet of Things and Smart Environment” at the University of Pavia.

Where: Aula Seminari (Ex Dip. di Elettronica), D Floor, Faculty of Engineering – Via Ferrata 5, Pavia

When: 7 November 2016 – 11.00am

Additional Details: please see flyer

Contact Point: Prof. Maurizio BOZZI (maurizio.bozzi@unipv.it)

Distinguished Lecturer Seminar Announcement: Prof. Y. Antar

antarThe IEEE AP/ED/MTT North Italy Chapter is pleased to announce a Distinguished Lecturer seminar. Prof. Y. Antar (IEEE AP-S Distinguished Lecturer and IEEE Fellow) from the Canada Research in Electromagnetic Engineering, Royal Military College of Canada& Queen’s University, Kingston, Ontario, Canada will give a seminar titled “Some Recent advances in Antennas Near Field Theory and possible Impact on Future Electromagnetic Applications” at the University of Siena.

Where: Aula Videoconferenze, Department of Information Engineering and Mathematics, University of Siena, Via Roma 56, 53100, Siena

When: Monday, June 13, 14:30-15:30

Additional Details: please see detailed info

Contact Point: Prof. Stefano MACI (macis@dii.unisi.it)

Seminar Announcement: Dr. Yu Zhong (A-STAR, Singapore)

ZhongThe IEEE AP/ED/MTT North Italy Chapter is pleased to announce that Dr. Yu Zhong (IEEE AP-S Member) from the Department of Electronics and Photonics, Institute of High Performance Computing, A-STAR, Singapore, will give a seminar entitled “Efficient and stable computational modeling for waves and fields – Inverse and direct problems” at the ELEDIA Research Center (ELEDIA@UniTN, University of Trento, Trento, Italy).

Where: Aula “Ofek”, Povo 1 Building, Università di Trento, Via Sommarive 5, I-38123 Trento

When: Thursday, June 9, 2016, 11:00 am

Abstract:  In this talk, computational modeling for both inverse and direct problems associated with waves and fields will be discussed. As one knows, inverse problems in handling waves and fields with only measurement data outside the inspection region are usually ill-posed and nonlinear. Trying to tackle them from the perspective of modeling, we have found that there indeed exist proper models with which inversions could be carried out with good efficiency. We will discuss two types of methods here, the qualitative type and the optimization type. The former are mainly tailored for targets with dimensions much smaller than the wavelength, including various MUSIC-type methods, linear sampling method, while the latter for those with dimensions comparable to wavelength, including various subspace-based optimization methods (SOM): improved SOM, twofold SOM (TSOM), FFT-TSOM, new integral equations, and PDE-based SOM. In the second part of the talk, computational modeling for composite layered materials will be discussed from two angles: the large-scale aspect and the small-scale aspect, by considering them as uni-axially anisotropic layered media and as layered media embedded with periodically-arranged cylindrical fibres. Fast, yet stable, approaches have been proposed to settle the spectral response and the spatial response, which serve to build inversion solvers with such materials.

Additional info: please see the ELEDIA Research Center webpage

Distinguished Lecturer Seminar Announcement: Prof. Q. H. Liu

The IEEE AP/ED/MTT North Italy Chapter is pleased to announce a Distinguished Lecturer seminar. Prof. Q. H. Liu (IEEE AP-S Distinguished Lecturer) from the Duke University will be giving a seminar titled “Multiscale Computational Electromagnetics and Applications” at the University of Trento.

Where: Room Garda, “Ferrari” Building, Via Sommarive 9, Trento

When: Friday, May 20, 2016, h. 11:00

Additional Details: please see the seminar page.

Contact Point: Prof. Andrea MASSA (andrea.massa@unitn.it)