Title :
A 94GHz mm-wave to baseband pulsed-radar for imaging and gesture recognition
Author :
Arbabian, Amin ; Kang, Shinwon ; Callender, Steven ; Chien, Jun-Chau ; Afshar, Bagher ; Niknejad, Ali
Author_Institution :
Stanford Univ., Stanford, CA, USA
Abstract :
An integrated phase-coherent and pixel-scalable pulsed-radar transceiver with on-chip tapered loop antennas generates programmable pulses down to 36ps using an integrated 94GHz carrier, frequency synthesized and locked to an external reference. A DLL controls the TX pulse position with 2.28ps resolution, which allows the chip to function as a unit element in a timed-array. The receiver also features a >;1.5THz GBW DA as the front-end amplifier, quadrature mixers, and a 26GHz quadrature baseband. Phase coherency allows for ~375μm single-target position resolution by interferometry.
Keywords :
gesture recognition; loop antennas; millimetre wave amplifiers; millimetre wave antennas; millimetre wave mixers; millimetre wave radar; radar imaging; DLL; GBW DA; TX pulse position; baseband pulsed-radar; frequency 26 GHz; frequency 94 GHz; front-end amplifier; gesture recognition; image recognition; integrated phase-coherent transceiver; interferometry; on-chip tapered loop antennas; pixel-scalable pulsed-radar transceiver; quadrature mixers; single-target position resolution; size 375 mum; time 2.28 ps; unit element; Frequency measurement; Mixers; Phase locked loops; Phase measurement; Pulse measurements; Semiconductor device measurement; Wideband;
Conference_Titel :
VLSI Circuits (VLSIC), 2012 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4673-0848-9
Electronic_ISBN :
978-1-4673-0845-8
DOI :
10.1109/VLSIC.2012.6243787
