A low-cost 2.45-GHz wireless power link for biomedical devices

This paper presents a 2.45-GHz wireless link to power on the miniaturized biomedical devices. In this link, a chip antenna is adopted for RF power transmitting, and a resonant network consisting of a compact inductor and a chip capacitor is employed for energy harvesting. A prototype is fabricated a...

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Bibliographic Details
Main Authors: Sanming Hu, Jia Hao Cheong, Yuan Gao, Ho, M. C. K., Minkyu Je, Madihian, M., Khait, S.
Format: Conference Proceeding
Language:English
Subjects:
antenna
Antenna measurements
Antennas
Capacitors
chip components
Frequency measurement
near field
resonant coupling
Semiconductor device measurement
Wireless communication
wireless power transfer
Wireless sensor networks
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Summary:This paper presents a 2.45-GHz wireless link to power on the miniaturized biomedical devices. In this link, a chip antenna is adopted for RF power transmitting, and a resonant network consisting of a compact inductor and a chip capacitor is employed for energy harvesting. A prototype is fabricated and measured in the time- and frequency-domain. The measured results show that this power transfer link meets the system requirement. In addition, in the case of a capacitor with 20% variation, this link can still achieve the system required efficiency. It therefore eliminates the adaptive matching circuit and simplifies the system design.
DOI:10.1109/APCAP.2012.6333223