A Low-Power Cmos Receiver For Wireless Sensor Networks

A monolithic on-off keying receiver is presented for wire-less sensor network applications. By employing the self-mixing technique, the demodulator is constructed from a voltage multiplier instead of a rectifier in this work. The proposed receiver can achieve a data rate upto I Mb/s at a power consumption of 15.4 mW while occupying a die area of only 0.25 mm(2). For a bit rate of 5 kb/s and a pseu-do-random sequence of 2(9) - 1, the receiver exhibits a sensitivity of -60 dBm (at 433 MHz. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2618-2620, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24707