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June 30, 2014

Mtg: Monolithic Wide-band and mm-Wave Beam-Forming Transceivers

by @ 7:35 am. Filed under ALL, Communications, Electronics Design, Semiconductors

THURSDAY August 21, 2014
SCV Solid State Circuits Chapter
– antenna arrays, architectures, medical, automotive …
Speaker: Hossein Hashemi, University of Southern California
Time: Networking and refreshments at 6:00 PM; Presentation at 6:30 PM
Cost: none (donation requested for food)
Place: Texas Instruments Building E Auditorium, 2900 Semiconductor Dr., Santa Clara
RSVP: not required

Advancements in semiconductor technology has led to monolithic realization of complex Radio Frequency (RF) Integrated Circuits (IC) and System-On-a-Chip (SOC) for commercial wireless communications. Shannonâ??s capacity theorem states that the communication data-rate is proportional to the information bandwidth and the logarithm of Signal-to-Noise-plus-Interference Ratio (SNIR).  Wireless transceivers operating at higher carrier frequencies have access to larger bandwidth and enable more compact realization (due to smaller wavelength). Antenna arrays can improve the SNIR by dynamically focusing the transmit power towards the desired directions (beam forming), reducing the interferences through spatial filtering, and improving the receiver sensitivity.  Antenna arrays have been around for over half a century in high performance military radar and communication systems in the context of phased arrays.  Recent research, about a decade old, has demonstrated monolithic realization of antenna array transceivers in silicon processes, and compact packaged solutions with antenna arrays, for commercial applications such as reliable ultra-high-speed wireless communications at 24 and 60 GHz Industrial Scientific Medical (ISM) bands, low-cost automotive radars at 24 GHz and 77 GHz bands, Ultra-Wide Band (UWB) imaging systems in the 3 â?? 10 GHz band, and passive imaging for security and healthcare applications at 94 GHz and 120 GHz bands.  Current research efforts include realization of compact low-power antenna array systems at mm-wave and sub-mm-waves with higher performance and more sophistication, e.g., including on-chip Built-In Self-Test (BIST), calibration, and integration with the Digital Signal Processing (DSP) core.  This talk covers the basics of multi-antenna systems, narrowband phased arrays, wideband timed arrays, transceiver architectures, circuit building blocks, and several case studies spanning 1 â?? 100 GHz for various applications.


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