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Intermittent Operation Control Scheme for Reducing Power Consumption of UWB-IR Receiver
Terada, T. Fujiwara, R. Ono, G. Norimatsu, T. Nakagawa, T. Miyazaki, M. Suzuki, K. Yano, K. Maeki, A. Ogata, Y. Kobayashi, S. Koshizuka, N. Sakamura, K.
Central Res. Lab., Hitachi, Ltd., Tokyo, Japan;

This paper appears in: Solid-State Circuits, IEEE Journal of
Publication Date: Oct. 2009
Volume: 44, Issue: 10
On page(s): 2702-2710
ISSN: 0018-9200
INSPEC Accession Number: 10880517
Digital Object Identifier: 10.1109/JSSC.2009.2027533
Current Version Published: 2009-09-22

Abstract
A low power ultra-wideband impulse radio (UWB-IR) receiver was developed in 0.18-mum CMOS. All circuits of the receiver AFE operate intermittently with a sampling clock of an analog-digital converter (ADC). The sampling rate of the ADC is equal to the pulse repetition frequency of the received signals. Power consumption of the receiver AFE is reduced by 60% using a developed intermittent operation scheme without degrading of receiver sensitivity. As a result, the power consumption of the receiver AFE is 38 mW. The receiver has a data rate of 258 kb/s over a distance of 52 m and of 10.7 Mb/s over a distance of 14 m.

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