BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20220313T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20221106T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20230128T223552Z UID:EE7F5BC8-B57F-4A46-90C7-1633B0AE2FB4 DTSTART;TZID=America/New_York:20220922T183000 DTEND;TZID=America/New_York:20220922T203000 DESCRIPTION:DISTRIBUTED PHASED ARRAYS: CHALLENGES AND RECENT PROGRESS\n\nTh ere has been significant research devoted to the development of distribute d microwave wireless systems in recent years. The progression from large\, single-platform wireless systems to collections of smaller\, coordinated systems on separate platforms enables significant benefits for radar\, rem ote sensing\, communications\, and other applications. The ultimate level of coordination between platforms is at the wavelength level\, where separ ate platforms operate as a coherent distributed system. Wireless coherent distributed systems operate in essence as distributed phased arrays\, and the signal gains that can be achieved scale proportionally to the number o f transmitters squared multiplied by the number of receivers\, providing p otentially dramatic increases in wireless system capabilities. Distributed array coordination requires accurate control of the relative electrical s tates of the nodes. Generally\, such control entails wireless frequency sy nchronization\, phase calibration\, and time alignment\, but for remote se nsing operations\, phase control also requires high-accuracy knowledge of the relative positions of the nodes in the array to support beamforming.\n \nThis lecture presents an overview of the challenges involved in distribu ted phased array coordination\, and describes recent progress on microwave technologies that address these challenges. Requirements for achieving di stributed phase coherence at microwave frequencies are discussed\, includi ng the impact of component non-idealities such as oscillator drift on beam forming performance. Architectures for enabling distributed beamforming ar e reviewed\, along with the relative challenges between transmit and recei ve beamforming. Microwave and millimeter-wave technologies enabling wirele ss phase-coherent synchronization are discussed\, focusing on technologies for high-accuracy internode ranging\, wireless frequency transfer\, and h igh-accuracy time alignment. The lecture concludes with a discussion of op en challenges in distributed phased arrays\, and where microwave technolog ies may play a role.\n\nBIOGRAPHY\n\n[Jeffrey Nanzer](https://www.linkedin .com/in/jeffrey-nanzer-10a53921/)Jeffrey Nanzer (S’02-M’08-SM’14) re ceived the B.S. degree in electrical engineering and computer engineering from Michigan State University\, East Lansing\, MI\, USA\, in 2003\, and t he M.S. and Ph.D. degrees in electrical engineering from The University of Texas at Austin\, Austin\, TX\, USA\, in 2005 and 2008\, respectively. Fr om 2008 to 2009\, he was a Postdoctoral Fellow with Applied Research Labor atories\, The University of Texas at Austin\, where he was involved in des igning electrically small HF antennas and communication systems. From 2009 to 2016\, he was with The Johns Hopkins University Applied Physics Labora tory\, Laurel\, MD\, USA\, where he created and led the Advanced Microwave and Millimeter-Wave Technology Section. In 2016\, he joined the Departmen t of Electrical and Computer Engineering\, Michigan State University\, whe re he is currently the Dennis P. Nyquist Associate Professor. He has autho red or co-authored more than 150 refereed journal and conference papers\, authored the book Microwave and Millimeter-Wave Remote Sensing for Securit y Applications (Artech House\, 2012)\, and co-authored chapters in the boo ks Wireless Transceiver Circuits (Taylor and Francis\, 2015) and Short-Ran ge Micro-Motion Sensing: Hardware\, signal processing and machine learning (IET\, 2019). His current research interests include distributed arrays\, radar and remote sensing\, antennas\, electromagnetics\, and microwave ph otonics.\n\nDr. Nanzer was a founding member and the First Treasurer of th e IEEE APS/MTT-S Central Texas Chapter. He is also a member of the IEEE An tennas and Propagation Society Education Committee and the USNC/URSI Commi ssion B. He was a recipient of the Outstanding Young Engineer Award from t he IEEE Microwave Theory and Techniques Society in 2019\, the DARPA Direct or’s Fellowship in 2019\, the National Science Foundation (NSF) CAREER A ward in 2018\, the DARPA Young Faculty Award in 2017\, and the JHU/APL Out standing Professional Book Award in 2012. He has served as the Vice-Chair for the IEEE Antenna Standards Committee from 2013 to 2015 and the Chair o f the Microwave Systems Technical Committee (MTT-16) of the IEEE Microwave Theory and Techniques Society from 2016 to 2018. He is also an Associate Editor of the IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION.\n\nVirtual: h ttps://events.vtools.ieee.org/m/322827 LOCATION:Virtual: https://events.vtools.ieee.org/m/322827 ORGANIZER:margill18@rochester.rr.com SEQUENCE:10 SUMMARY:Distributed Phased Arrays: Challenges and Recent Progress URL;VALUE=URI:https://events.vtools.ieee.org/m/322827 X-ALT-DESC:Description: <br /><p><strong><em>DISTRIBUTED PHASED ARRAYS: CHA LLENGES AND RECENT PROGRESS</em></strong></p>\n<p>There has been significa nt research devoted to the development of distributed microwave wireless s ystems in recent years. The progression from large\, single-platform wirel ess systems to collections of smaller\, coordinated systems on separate pl atforms enables significant benefits for radar\, remote sensing\, communic ations\, and other applications. The ultimate level of coordination betwee n platforms is at the wavelength level\, where separate platforms operate as a coherent distributed system. Wireless coherent distributed systems op erate in essence as distributed phased arrays\, and the signal gains that can be achieved scale proportionally to the number of transmitters squared multiplied by the number of receivers\, providing potentially dramatic in creases in wireless system capabilities. Distributed array coordination re quires accurate control of the relative electrical states of the nodes. Ge nerally\, such control entails wireless frequency synchronization\, phase calibration\, and time alignment\, but for remote sensing operations\, pha se control also requires high-accuracy knowledge of the relative positions of the nodes in the array to support beamforming.</p>\n<p>This lecture pr esents an overview of the challenges involved in distributed phased array coordination\, and describes recent progress on microwave technologies tha t address these challenges. Requirements for achieving distributed phase c oherence at microwave frequencies are discussed\, including the impact of component non-idealities such as oscillator drift on beamforming performan ce. Architectures for enabling distributed beamforming are reviewed\, alon g with the relative challenges between transmit and receive beamforming. M icrowave and millimeter-wave technologies enabling wireless phase-coherent synchronization are discussed\, focusing on technologies for high-accurac y internode ranging\, wireless frequency transfer\, and high-accuracy time alignment. The lecture concludes with a discussion of open challenges in distributed phased arrays\, and where microwave technologies may play a ro le.</p>\n<p><strong>BIOGRAPHY</strong></p>\n<p><a href="https://www.linked in.com/in/jeffrey-nanzer-10a53921/" target="_blank" rel="noopener"><img st yle="float: left\; height: 298px\; margin: 10px\; width: 298px\;" src="htt ps://media-exp1.licdn.com/dms/image/C4D03AQG65gMb_6rpQA/profile-displaypho to-shrink_800_800/0/1516942715835?e=1668038400&amp\;v=beta&amp\;t=JgdMUYCK Kbsjozcpms0xh7V6UUbAMlYeDCv_O3s7rpI" alt="Jeffrey Nanzer" /></a>Jeffrey Na nzer (S&rsquo\;02-M&rsquo\;08-SM&rsquo\;14) received the B.S. degree in el ectrical engineering and computer engineering from Michigan State Universi ty\, East Lansing\, MI\, USA\, in 2003\, and the M.S. and Ph.D. degrees in electrical engineering from The University of Texas at Austin\, Austin\, TX\, USA\, in 2005 and 2008\, respectively. From 2008 to 2009\, he was a P ostdoctoral Fellow with Applied Research Laboratories\, The University of Texas at Austin\, where he was involved in designing electrically small HF antennas and communication systems. From 2009 to 2016\, he was with The J ohns Hopkins University Applied Physics Laboratory\, Laurel\, MD\, USA\, w here he created and led the Advanced Microwave and Millimeter-Wave Technol ogy Section. In 2016\, he joined the Department of Electrical and Computer Engineering\, Michigan State University\, where he is currently the Denni s P. Nyquist Associate Professor. He has authored or co-authored more than 150 refereed journal and conference papers\, authored the book&nbsp\;<em> Microwave and Millimeter-Wave Remote Sensing for Security Applications</em >&nbsp\;(Artech House\, 2012)\, and co-authored chapters in the books&nbsp \;<em>Wireless Transceiver Circuits</em>&nbsp\;(Taylor and Francis\, 2015) and S<em>hort-Range Micro-Motion Sensing: Hardware\, signal processing an d machine learning (IET\, 2019)</em>. His current research interests inclu de distributed arrays\, radar and remote sensing\, antennas\, electromagne tics\, and microwave photonics.</p>\n<p>Dr. Nanzer was a founding member a nd the First Treasurer of the IEEE APS/MTT-S Central Texas Chapter. He is also a member of the IEEE Antennas and Propagation Society Education Commi ttee and the USNC/URSI Commission B. He was a recipient of the Outstanding Young Engineer Award from the IEEE Microwave Theory and Techniques Societ y in 2019\, the DARPA Director&rsquo\;s Fellowship in 2019\, the National Science Foundation (NSF) CAREER Award in 2018\, the DARPA Young Faculty Aw ard in 2017\, and the JHU/APL Outstanding Professional Book Award in 2012. He has served as the Vice-Chair for the IEEE Antenna Standards Committee from 2013 to 2015 and the Chair of the Microwave Systems Technical Committ ee (MTT-16) of the IEEE Microwave Theory and Techniques Society from 2016 to 2018. He is also an Associate Editor of the IEEE TRANSACTIONS ON ANTENN AS AND PROPAGATION.</p>\n<p>&nbsp\;</p> END:VEVENT END:VCALENDAR