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DTSTAMP:20230805T154312Z
UID:A9BFE2F7-20F6-4088-A7DC-124647B87217
DTSTART;TZID=America/Los_Angeles:20230731T113000
DTEND;TZID=America/Los_Angeles:20230731T133100
DESCRIPTION:In recent years\, reconfigurable intelligent surfaces (RISs) ha
 ve shown promising\nabilities to control and manipulate electromagnetic (E
 M) waves through modified surface\nboundary conditions. These surfaces are
  electrically thin and comprise an array of spatially\nvarying sub-wavelen
 gth scattering elements (or meta-atoms). Through careful engineering\nof e
 ach meta-atom\, RISs can transform an incident EM wave into an arbitrarily
  tailored\ntransmitted or reflected wavefront. Recent developments in RISs
  have opened exciting new\nopportunities in antenna design\, as well as co
 mmunications and radar systems. RISs - wherein\nmeta-atoms are embedded wi
 th active components - lead to the development of low-cost\,\nlightweight\
 , and compact systems that can produce programmable radiation patterns\,\n
 jointly perform multi-function communications\, and enable advanced radars
  for next-generation\nmilitary platforms. This talk will introduce RISs an
 d their various applications in\ndesigning simplified communications and r
 adar systems\, wherein the RF aperture and\ntransceiver are integrated wit
 hin the RIS. For example\, dynamic reconfiguration of the RIS\naperture in
  a wireless communications transmitter facilitates beam steering\, frequen
 cy\nagility\, and phase modulation without conventional front-end devices 
 such as phase-shifters\,\nmixers\, and switches. We will present our recen
 t work on reconfigurable RIS control\, RIS-enabled\ndirect signal modulati
 on\, and deep learning-based RIS design. Finally\, we will\npresent deploy
 ing RIS as a reflector in the wireless channel for aiding non-line-of-sigh
 t radar\nand joint radar-communications.\n\nSpeaker(s): Kumar\n\nSEL Event
  Center \, Pullman\, Washington\, United States
LOCATION:SEL Event Center \, Pullman\, Washington\, United States
ORGANIZER:smad4875@vandals.uidaho.edu
SEQUENCE:7
SUMMARY:Reconfigurable Intelligent Surfaces of Communications and Radars
URL;VALUE=URI:https://events.vtools.ieee.org/m/366863
X-ALT-DESC:Description: <br /><p>In recent years\, reconfigurable intellige
 nt surfaces (RISs) have shown promising&nbsp\;<br />abilities to control a
 nd manipulate electromagnetic (EM) waves through modified surface&nbsp\;<b
 r />boundary conditions. These surfaces are electrically thin and comprise
  an array of spatially&nbsp\;<br />varying sub-wavelength scattering eleme
 nts (or meta-atoms). Through careful engineering&nbsp\;<br />of each meta-
 atom\, RISs can transform an incident EM wave into an arbitrarily tailored
 &nbsp\;<br />transmitted or reflected wavefront. Recent developments in RI
 Ss have opened exciting new&nbsp\;<br />opportunities in antenna design\, 
 as well as communications and radar systems. RISs - wherein&nbsp\;<br />me
 ta-atoms are embedded with active components - lead to the development of 
 low-cost\,&nbsp\;<br />lightweight\, and compact systems that can produce 
 programmable radiation patterns\,&nbsp\;<br />jointly perform multi-functi
 on communications\, and enable advanced radars for next-generation<br />mi
 litary platforms. This talk will introduce RISs and their various applicat
 ions in&nbsp\;<br />designing simplified communications and radar systems\
 , wherein the RF aperture and&nbsp\;<br />transceiver are integrated withi
 n the RIS. For example\, dynamic reconfiguration of the RIS&nbsp\;<br />ap
 erture in a wireless communications transmitter facilitates beam steering\
 , frequency&nbsp\;<br />agility\, and phase modulation without conventiona
 l front-end devices such as phase-shifters\,&nbsp\;<br />mixers\, and swit
 ches. We will present our recent work on reconfigurable RIS control\, RIS-
 enabled<br />direct signal modulation\, and deep learning-based RIS design
 . Finally\, we will&nbsp\;<br />present deploying RIS as a reflector in th
 e wireless channel for aiding non-line-of-sight radar&nbsp\;<br />and join
 t radar-communications. &nbsp\;</p>
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