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A 0.24-nJ/bit Super-Regenerative Pulsed UWB Receiver in 0.18- \mu m CMOS

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4 Author(s)
Prakash Egambaram Thoppay ; Analog IC Design Group, Marvell Technologies, Ecublens, Switzerland ; Catherine Dehollain ; Michael M. Green ; Michel J. Declercq

This paper describes a receiver system design for impulse-radio ultra-wideband (IR-UWB) that operates at two carrier frequencies-3.494 and 3.993 GHz-with a 10-Mbps data rate. To reduce the power consumption of the front-end amplifiers, a super-regenerative architecture is used. An integrated circuit, implemented in a CMOS 0.18-μm technology and operating with a 1.5-V power supply, exhibits energy consumption of 0.24 nJ/bit with a measured sensitivity of -66 and -61 dBm at 3.494 and 3.993 GHz, respectively, with a BER of 10-3. Also included on the integrated circuit is an automatic tuning circuit based on a digital phase-locked loop that is used to set the resonant frequency of the super-regenerative block.

Published in:

IEEE Journal of Solid-State Circuits  (Volume:46 ,  Issue: 11 )