Design and Implementation of Spread Spectrum Wireless Switch with Low Power Consumption

Shuichi TOMABECHI  Atsushi KOMURO  Takashi KONNO  Hiroyuki NAKASE  Kazuo TSUBOUCHI  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E84-A    No.4    pp.971-973
Publication Date: 2001/04/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Fundamentals of Information and Communications)
spread spectrum,  wireless switch,  SAW matched filter,  power consumption,  communication range,  

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We have proposed and implemented a spread spectrum (SS) wireless switch using 2.4 GHz front-end AlN/Al2O3 surface acoustic wave (SAW) matched filter (MF). Since the SAW MF has radio frequency (RF) front-end operation, RF components are not needed in the received circuit. High impedance in the peripheral circuit using passive devices has been employed for low current consumption. The SS wireless switches have been designed with the power consumption of less than 100 µW by using the SAW MF. It is confirmed that implemented SS wireless switch has a long battery life of 10 years and communication range of 30 m.