TY - GEN
T1 - StimRec
T2 - 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023
AU - Benbuk, Abed
AU - Liu, Shiyi
AU - Gulick, Daniel
AU - Moniz-Garcia, Diogo
AU - Quinones-Hinojosa, Alfredo
AU - Christen, Jennifer Blain
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this paper, we propose a wireless, battery-free stimulator and recorder (StimRec). The device leverages Wireless Power Transfer (WPT) at 2.4 GHz to generate monophasic voltage pulses with an amplitude of 7.2 V at a distance of 20 mm. Further, the StimRec performs RF backscattering at 4.8 GHz to relay a baseband signal with an amplitude as low as 2 mVpp at the electrodes. An external transmitter can arbitrarily switch the StimRec's operation between stimulation and recording by altering the parameters of an On-Off keying (OOK) control signal. We develop a low-temperature fabrication process to obtain the device on a transparent, flexible, and bio-compatible parylene/polydimethylsiloxane (PDMS) substrate with a thickness of 212 μm. These features make the StimRec a valuable tool in biomedical applications where monitoring and stimulation are required through the same electrode pair while ensuring the ability to switch between the two modes of operation with a negligible delay.
AB - In this paper, we propose a wireless, battery-free stimulator and recorder (StimRec). The device leverages Wireless Power Transfer (WPT) at 2.4 GHz to generate monophasic voltage pulses with an amplitude of 7.2 V at a distance of 20 mm. Further, the StimRec performs RF backscattering at 4.8 GHz to relay a baseband signal with an amplitude as low as 2 mVpp at the electrodes. An external transmitter can arbitrarily switch the StimRec's operation between stimulation and recording by altering the parameters of an On-Off keying (OOK) control signal. We develop a low-temperature fabrication process to obtain the device on a transparent, flexible, and bio-compatible parylene/polydimethylsiloxane (PDMS) substrate with a thickness of 212 μm. These features make the StimRec a valuable tool in biomedical applications where monitoring and stimulation are required through the same electrode pair while ensuring the ability to switch between the two modes of operation with a negligible delay.
KW - PDMS
KW - RF backscattering
KW - Stimulation
KW - Wireless Power transfer (WPT)
KW - battery-free
KW - recording
UR - http://www.scopus.com/inward/record.url?scp=85170638823&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85170638823&partnerID=8YFLogxK
U2 - 10.1109/WPTCE56855.2023.10215874
DO - 10.1109/WPTCE56855.2023.10215874
M3 - Conference contribution
AN - SCOPUS:85170638823
T3 - 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 - Proceedings
BT - 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 4 June 2023 through 8 June 2023
ER -