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Plenary Talks 1

Ultra-Wideband Arrays with Low Cost Beamforming Back-Ends
NameProf. John L. Volakis
AffiliationThe Ohio State University, USA

Biography :

John L. Volakis is an IEEE and ACES Fellow. He holds the Roy and Lois Chope Chair in Engineering at Ohio State and is a Professor in the Electrical and Computer Engineering Dept. he also served as the Director of the ElectroScience Laboratory for 14 years (with approx. 170 people and 30 faculty/researchers). His career spans 2 years at Boeing, 19 years on the faculty at the Univ of Michigan and 14.5 years at Ohio State. At Michigan he served as the Director of the Radiation Laboratory at U of Michigan (1998-2000). He has 34 years experience and his research covers wireless communications, wearable textile antennas and electronics, antenna and arrays, ultra-wideband RF beamforming techniques, RF materials and metamaterials, EMI/EMC, multi-physics engineering, bioelectromagnetics, mm-wave front ends for GB communications, THz, radar scattering, RF systems integration, propagation, design optimization, and computational methods. He is internationally known for introducing hybrid finite element methods in electromagnetics, antenna miniaturizations techniques and textile electronics. In 2004, he was listed by ISI among the top 250 highly cited scientists/engineers. His publications include 8 widely used books, 400 journal papers and nearly 800 conference papers. His google h-index=58 with greater than 15000 citations. He mentored over 85 Ph.Ds with 35 of them having co-authored papers that won awards at international conferences. His service to Professional Societies includes: 2004 President of the IEEE Antennas and Propagation Society, 2015-2017 USNC-URSI B Chair, twice the general Chair of the IEEE Antennas and Propagation Symposium, IEEE APS Distinguished Lecturer, IEEE APS Fellows Committee Chair, IEEE-wide Fellows committee member & Associate Editor of several journals. Among his awards are: The Univ. of Michigan College of Engineering Research Excellence award (1993), Scott award from The Ohio State Univ. College of Engineering for Outstanding Academic Achievement (2011), IEEE Tai Teaching Excellence award (2011), and the IEEE Henning Mentoring award (2013), IEEE APS Distinguished Achievement award (2015), and Ohio State Univ. Distinguished Scholar Award (2016), and the Ohio State ElectroScience Lab Sinclair award (2016).

Abstract :

Future communication links will require higher data rates, multiple beams, and higher transmit/receive gains, in addition to smaller weight, cost, and power. With the growing interest for reduced size platforms and the requirement for ultra-wideband (UWB) performance to address multi-functionality, there is a strong need for UWB apertures to enable increased spectral efficiency, multi-functionality and security, there is a strong need for small UWB apertures, particularly at millimeter wave frequencies. Such apertures enable increased spectral efficiency, spatial multiplexing, concurrent beams at different frequencies. Furthermore, UWB arrays offer high data rates and allow for secure communication using long codes that spread across the bandwidth. An added feature will be the capability for simultaneous transmit and receive (STAR) applications.

In addition to challenges in designing small size UWB arrays, traditional antenna arrays are associated with complex electronic back-end that are typically associated with large power requirements. For UWB arrays, beamforming should also be frequency independent. However, to date, there is no technology for low power and small form factor wideband beamforming. In fact, traditional beamformers are mostly suited for narrowband or multiband operation with inherently high power requirements.

This presentation will review traditional beamforming approaches, and presents innovative methods for handling UWB communications. We anticipate that a combination of UWB array with OS-CDM coding and autonomous beamforming mechanisms will lead to game-changing frequency-independent down-conversion, beam steering and MIMO across large bandwidths, from MHz to millimeter wave bands. At the conference, we will discuss system evaluation and performance of these concepts using simulations and model measurements.

Important Dates

    Paper Submission Deadline:

May 1, 2017

May 15, 2017

May 31, 2017

(Hard deadline)

12:00 am(Thailand standard time)


    Notification of Acceptance :

August 1-6, 2017


    Early Bird Registration Deadline:

August 31, 2017

September 4, 2017 (Extend)