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Fujitsu Laboratories Ltd. and imec Holst Centre have developed a wireless transceiver circuit for use in body area networks (BAN) for medical applications that adheres to the 400 MHz-band international standard.
While the subject of high expectations for medical applications, wireless monitoring of brainwaves or other vital signs has in the past required over a dozen mW of electric power, now, by optimizing the architecture and circuitry the partners have succeeded in reducing the electric power requirements of wireless transceiver front-ends, to just 1.6 mW when receiving data and 1.8 mW when transmitting.
This technology extends by approximately ten-fold the battery life of conventional sensor products used for patient monitoring. This cuts the frequency of battery replacement or recharges, lightens the burden on patients, and increases the work efficiency of medical practitioners.
Based on this joint research into wireless transceiver technology, Fujitsu Laboratories plans to apply it to non-medical uses, as well, such as to the monitoring of societal infrastructure, thereby further enhancing network front-end interface technologies.