Deakin University
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Development of a compact rectenna for wireless powering of a head-mountable deep brain stimulation device

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journal contribution
posted on 2014-01-01, 00:00 authored by Kamal Hosain, Abbas KouzaniAbbas Kouzani, Susannah Tye, O A Abulseoud, A Amiet, A Galehdar, Akif KaynakAkif Kaynak, Michael BerkMichael Berk
Design of a rectangular spiral planar inverted-F antenna (PIFA) at 915 MHz for wireless power transmission applications is proposed. The antenna and rectifying circuitry form a rectenna, which can produce dc power from a distant radio frequency energy transmitter. The generated dc power is used to operate a low-power deep brain stimulation pulse generator. The proposed antenna has the dimensions of 10 mm × 12.5 mm × 1.5 mm and resonance frequency of 915 MHz with a measured bandwidth of 15 MHz at return loss of -10 dB. A dielectric substrate of FR-4 of εr = 4.8 and δ = 0.015 with thickness of 1.5 mm is used for both antenna and rectifier circuit simulation and fabrication because of its availability and low cost. An L-section impedance matching circuit is used between the PIFA and voltage doubler rectifier. The impedance matching circuit also works as a low-pass filter for elimination of higher order harmonics. Maximum dc voltage at the rectenna output is 7.5 V in free space and this rectenna can drive a deep brain stimulation pulse generator at a distance of 30 cm from a radio frequency energy transmitter, which transmits power of 26.77 dBm.



IEEE journal of translational engineering in health and medicine




1 - 13




Piscataway, N.J.





Publication classification

C Journal article; C1 Refereed article in a scholarly journal

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2014, IEEE