Sabanci University Microelectronics Workshop
http://sumicro.sabanciuniv.edu/payam-heydariPayam Heydari
The
vastly under-utilized spectrum across millimeter-wave (mm-wave) and terahertz
(THz) bands has generated great deal of excitement to investigate futuristic
systems for 10+ gigabit short-range wireless as well as wideband
sensing/imaging applications. Simply put, the shorter wavelength associated
with the mm-wave/THz band is appealing since the physical dimensions of
the antenna and associated electronics are reduced in size, making it possible
to design multi-antenna structures to achieve beamforming, spatial diversity
and multiplexing.
On the imaging applications front, THz imaging is considered to be
one of the emerging technologies. Electromagnetic wave at these frequencies can
pass through non-conducting materials. Meanwhile, many materials have a
fingerprint spectrum at millimeter-wave/THz frequency range, making it possible
to be used in non-ionized imaging and material spectroscopy. On the
radar/sensing and communications front, the availability of broad unlicensed
frequency spectrum across the millimeter-wave/THz frequency range unfolds new
ideas on super-precise sensing at micrometer-level and multi-10-gigabit instant
wireless access at the centimeter-level spacing between transmitter (TX) and
receiver (RX).
Owing to aggressive scaling in feature size and device fT/fmax, nanoscale (Bi)CMOS
technology potentially enables integration of sophisticated systems at THz
frequency range, once only be implemented in compound III-IV semiconductor
technologies.
This talk will give a brief overview of recent advances in
designing silicon-based integrated circuits will be capable of operating close
to the maximum operation limits of silicon-based transistors. The talk then
will discuss two case studies designed in UCI’s Nanoscale Communication
Integrated Circuits (NCIC) Labs; namely, the world’s highest fundamental
frequency fully differential transceiver in CMOS at 210 GHz, and the world’s
highest frequency PLL-based Synthesizer in Silicon at 300GHz with a wide tuning
range.
Payam Heydari
Distinguished Professor
Nanoscale Communication
Integrated Circuits (NCIC) Labs
Dept. of EECS, University of California
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