Title :
A power-harvesting pad-less mm-sized 24/60GHz passive radio with on-chip antennas
Author :
Tabesh, Maryam ; Rangwala, Mustafa ; Niknejad, Ali M. ; Arbabian, Amin
Author_Institution :
Univ. of California, Berkeley, Berkeley, CA, USA
Abstract :
A wireless-powered pad-less single-chip dual-band mm-wave passive radio is implemented in 65nm CMOS for applications in sensor networks and wireless tagging. This fully self-sufficient system has no pads or external components (e.g. power supply), and the entire radio is a single 3.7mm × 1.2mm chip. To provide multi-access, and to mitigate interference, it uses two separate mm-wave bands for RX/TX and integrates both antennas to provide a measured communication range of 50cm. Compared to mm-sized passive radio solutions in the same category this system provides an order of magnitude range enhancement while improving input sensitivity by >14dB. Wideband pulse transmission enables real-time localization with time-of-flight. The entire system operates with standby harvested power below 1.5μW and aggregate rate >12Mbps.
Keywords :
CMOS integrated circuits; energy harvesting; field effect MIMIC; field effect MMIC; interference suppression; microwave antennas; millimetre wave antennas; receiving antennas; telecommunication power supplies; transmitting antennas; wireless sensor networks; RX-TX antenna; frequency 24 GHz; frequency 60 GHz; fully self-sufficient system; interference mitigation; magnitude range enhancement; mm-wave bands; on-chip antennas; size 65 nm; time-of-flight; wideband pulse transmission; wireless sensor networks; wireless tagging; wireless-powered harvesting pad-less single-chip dual-band mm-wave passive radio; Antenna measurements; Antennas; Semiconductor device measurement; Timing; Transponders; Wireless communication; Wireless sensor networks;
Conference_Titel :
VLSI Circuits Digest of Technical Papers, 2014 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4799-3327-3
DOI :
10.1109/VLSIC.2014.6858380
