Title :
A 0.24-nJ/bit Super-Regenerative Pulsed UWB Receiver in 0.18-
m CMOS
Author :
Thoppay, Prakash Egambaram ; Dehollain, Catherine ; Green, Michael M. ; Declercq, Michel J.
Author_Institution :
Analog IC Design Group at Marvell Technol., Ecublens, Switzerland
Abstract :
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.
Keywords :
CMOS analogue integrated circuits; digital phase locked loops; error statistics; field effect MMIC; low-power electronics; radio receivers; ultra wideband communication; BER; CMOS technology; IR-UWB; automatic tuning circuit; digital phase-locked loop; energy consumption; frequency 3.494 GHz; frequency 3.993 GHz; front-end amplifiers; impulse-radio ultra-wideband; power consumption; size 0.18 mum; super-regenerative pulsed UWB receiver; voltage 1.5 V; Capacitors; Receivers; Resonant frequency; Transistors; Tuning; Voltage-controlled oscillators; Digital phase-locked loop; oscillator; receiver architecture; super-regenerative system; ultra-wideband communication; wireless sensor network;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2011.2166434