Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/54343
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Type: Conference paper
Title: Wireless telemetry system for a SAW based microvalve
Author: Tikka, A.
Al-Sarawi, S.
Jamali, B.
Abbott, D.
Citation: Proceedings of the SPIE Smart Materials, Nano-, and Micro-Smart Systems. Proceedings of the SPIE, 2008. Volume 7270, pp. 727018-8
Publisher: SPIE
Publisher Place: CD
Issue Date: 2008
Series/Report no.: Proceedings of SPIE
ISBN: 9780819475220
ISSN: 1605-7422
Conference Name: SPIE Smart Materials, Nano-, and Micro-Smart Systems (2008 : Melbourne, Australia)
Statement of
Responsibility: 
Ajay C. Tikka, Said F. Al-Sarawi, Behnam Jamali, and Derek Abbott
Abstract: Inductively coupled RF telemetry is an optimal method for both power supply and data transmission in long term artificial implants due to small size, high reliability, and extended life span of the device. In this research, we propose the use of the same technique for secure remote interrogation and powering of a human implantable, Surface Acoustic Wave (SAW) correlation based, passive microvalve. This is carried out by interrogating the microvalve with a Barker sequence encoded BPSK signal. In this paper we present the development of a FEM model for the derivation of the induced voltage on a miniature (2.5×2.5×1 mm), inductively coupled, biocompatible spiral antenna/coil, interrogated by a 7.5×7.5×0.2 cm spiral antenna/coil in the near field. The amount of power transferred at a 30-160 MHz range was derived using the S21 coupling response when the two antennas are separated by a human body simulant of 5 cm depth. Furthermore, the effect of varying magnetic coupling on the induced voltage, due to the misorientation of coils/antennas is analysed.
Description: ©2008 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
RMID: 0020085421
DOI: 10.1117/12.810602
Appears in Collections:Electrical and Electronic Engineering publications

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