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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/695

Título: A 2.4-GHz low-power/low-voltage wireless plug-and-play module for EEG applications
Autor: Carmo, João
Dias, Nuno
Silva, Helder
Mendes, P.M.
Couto, Carlos
Correia, J.H.
Palavras-chave: Plug-and-play module
Radio frequency (RF) CMOS transceiver
Wireless electroencephalogram (EEG)
Wireless sensors networks
Issue Date: 2007
Editora: IEEE
Citação: IEEE Sensors Journal. ISSN 1530-437X. 7:11 (2007) p.1524-1531
Resumo: This paper presents a plug-and-play module for wireless electroencephalogram (EEG) applications. The wireless module is composed by an electrode, processing electronics, a radio-frequency (RF) transceiver, and an associated antenna. The RF transceiver was fabricated in the UMC RF 0.18 mum CMOS process, and operates in the 2.4-GHz ISM band. The receiver has a sensitivity of -60 dBm and a power consumption of 6.3 mW from a 1.8 V supply. The transmitter delivers an output power of 0 dBm with a power consumption of 11.2 mW, for a range of 10 m. It is also presented the electrical performance and comparison between different electrodes for EEG applications, namely sputtered titanium nitride (TiN) electrodes, standard sintered silver/silver chloride (Ag/AgCl) ring electrodes and sputtered iridium oxide (IrO2) electrodes. The experimental results show a better performance of the sputtered IrO2 electrodes compared with the standard sintered Ag/AgCl ring electrodes. These results promise a new opportunity for the application of a dry IrO2 electrodes in wireless modules for using in a wearable EEG braincap. These wireless EEG modules will allow patients to wear a brain cap and maintain their mobility, while simultaneously having their electrical brain activity monitored.
URI: http://hdl.handle.net/10198/695
ISSN: 1530-437X
Appears in Collections:DE - Artigos em Revistas Indexados ao ISI/Scopus

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