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PRODID:IEEE vTools.Events//EN
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TZID:Asia/Kolkata
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DTSTART:19451014T230000
TZOFFSETFROM:+0630
TZOFFSETTO:+0530
TZNAME:IST
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BEGIN:VEVENT
DTSTAMP:20260227T123855Z
UID:EA7C0427-6D39-4EB1-A4EB-56A1B2A99380
DTSTART;TZID=Asia/Kolkata:20260223T181100
DTEND;TZID=Asia/Kolkata:20260223T181300
DESCRIPTION:The growing demands and advancements in wireless communication 
 and radar systems need highly efficient signal manipulation\, adaptive fre
 quency control\, and enhanced device performances. Metamaterials\, compose
 d of artificially engineered subwavelength unit cells\, have emerged as a 
 powerful platform by manipulating amplitude\, phase\, polarization\, and e
 nergy dissipation beyond the limits of conventional materials. Absorption 
 and polarization control represent two significant applications of electro
 magnetic metamaterials\, where the co- and cross-polarized reflection coef
 ficients play a critical role in determining overall device performance. T
 his invited talk presents the design and development of multi-band\, minia
 turized\, and wideband metamaterial absorbers\, and then extended to multi
 -functional metamaterial structures that simultaneously realize high absor
 ption and polarization manipulation within a single compact architecture. 
 In addition\, the talk also introduces the concept of absorptive filtering
  Reconfigurable Intelligent Surfaces (RIS)\, which integrate both tunable 
 phase response and a bandpass like reflection response in the operating ba
 nd with a sharp rejection in the out of band. Absorptive frequency-selecti
 ve reflectors provide the multiple functionalities of absorption and refle
 ction without the tunable phase response. However\, absorptive filtering R
 IS requires a tunable phase response which can achieved by adding phase sh
 ifting layer.\n\nSpeaker(s): Punyatoya\, \n\nKanpur\, Uttar Pradesh\, Indi
 a
LOCATION:Kanpur\, Uttar Pradesh\, India
ORGANIZER:dkgiri@iitk.ac.in
SEQUENCE:13
SUMMARY:Advance Metamaterials for Electromagnetic Wave Manipulation
URL;VALUE=URI:https://events.vtools.ieee.org/m/540877
X-ALT-DESC:Description: <br /><p>The growing demands and advancements in wi
 reless communication and radar systems need highly efficient signal manipu
 lation\, adaptive frequency control\, and enhanced device performances. Me
 tamaterials\, composed of artificially engineered subwavelength unit cells
 \, have emerged as a powerful platform by manipulating amplitude\, phase\,
  polarization\, and energy dissipation beyond the limits of conventional m
 aterials. Absorption and polarization control represent two significant ap
 plications of electromagnetic metamaterials\, where the co- and cross-pola
 rized reflection coefficients play a critical role in determining overall 
 device performance. This invited talk presents the design and development 
 of multi-band\, miniaturized\, and wideband metamaterial absorbers\, and t
 hen extended to multi-functional metamaterial structures that simultaneous
 ly realize high absorption and polarization manipulation within a single c
 ompact architecture. In addition\, the talk also introduces the concept of
  absorptive filtering Reconfigurable Intelligent Surfaces (RIS)\, which in
 tegrate both tunable phase response and a bandpass like reflection respons
 e in the operating band with a sharp rejection in the out of band. Absorpt
 ive frequency-selective reflectors provide the multiple functionalities of
  absorption and reflection without the tunable phase response. However\, a
 bsorptive filtering RIS requires a tunable phase response which can achiev
 ed by adding phase shifting layer.</p>
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