BEGIN:VCALENDAR
PRODID:-//University of Illinois//Web Services Calendar//EN
VERSION:2.0
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20120214T161409Z
DTSTART;TZID=America/Chicago:20091113T110000
DTEND;TZID=America/Chicago:20091113T110000
SUMMARY:Silicon mm-Wave Imaging Arrays
CREATED:20091030T150000Z
DESCRIPTION:The advancement of silicon processes combined with the demand
  for electronics with faster performance has generated a great deal of i
 nterest toward millimeter wavelength circuit applications. Several imagi
 ng applications exist for circuits operating in the millimeter wavelengt
 h regime including concealed weapons detection and automotive radar for 
 collision avoidance systems. Both of these applications benefit from inc
 reased spatial resolution obtained by increasing the carrier frequency m
 ade possible by advanced silicon technologies.We envision an active imag
 ing receiver that consists of an array of 1000 antenna and per-antenna p
 rocessor (PAP) units with an operating frequency of 77GHz. The 77-GHz in
 put signal is amplified and downconverted by a mixer with a 76-GHz local
  oscillator\, to obtain an intermediate frequency (IF) of 1GHz. The IF s
 ignal is digitized by a 10-bit analog-to-digital converter (A/D) samplin
 g at 4 GHz. Along with the A/D converter each PAP contains digital logic
  that estimates the phase and amplitude of the IF signal and reduces the
  data rate to the order of a kilohertz. After data rate reduction\, a ce
 ntral processing unit performs digital beamforming on the aggregated dat
 a from the array to achieve an expected frame rate of 30 fps. In this ta
 lk\, a description of the overall system and the key circuits in the PAP
  including the front-end circuits with flip-chip integrated wideband ant
 ennas will be described.
LAST-MODIFIED:20091030T150000Z
LOCATION:B02 Coordinated Science Laboratory
CATEGORIES:Academic
ORGANIZER:kgudeman@illinois.edu
URL:http://illinois.edu/calendar/detail/1045?key=2000010120000101147013
UID:147013@illinois.edu
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END:VCALENDAR