Single-Arm Electrode for wireless ECG signal transmission system(part 3) Presenter: Hsuan-Han Chiang Adviser: Dr. Hung-Chi Yang Date: 11.17.2010 2010/11/17

Results 3D Fields measurement 2010/11/17

Results Average SAR=441 W/Kg Average SAR=377 W/Kg The SAR value distribution curve that simulate the antenna in the tissue. The SAR value distribution curve that immersed into the concave of FR4 substrate 2010/11/17

Results ECG circuit & Transmitter Circuit ECG circuit Zigbee Module ECG circuit Transmitter Circuit 2010/11/17

Results LabVIEW display interface 2010/11/17

Results The FPC of electrode Electrode’s position on left upper arm ※ FPC-Flexible Print Circuit(軟性基板) 2010/11/17

Results ECG measure on left upper arm from ECG circuit (b) signal process by MATLAB ECG measure on right upper arm (a) from ECG circuit (b) signal process by MATLAB 2010/11/17

Results ECG measure on left elbow from ECG circuit (b) signal process by MATLAB ECG measure on right elbow (a) from ECG circuit (b) signal process by MATLAB 2010/11/17

Results ECG measure on left lower arm from ECG circuit (b) signal process by MATLAB ECG measure on right lower arm (a) from ECG circuit (b) signal process by MATLAB 2010/11/17

Conclusions The electrode antenna have been accomp-lished in the ISM band . ECG gelatin can separated the proposed antenna pattern from the human skin. Therefore, the SAR will be decreased. It is possible to measure the ECG signal with the FPC of electrode attached to the arm . 2010/11/17

Future Work Improve the resonant frequency Enhance the antenna radiation efficiency Improve ECG circuit Design of electrode antenna using Flexible Print Circuit 2010/11/17

References [1] Angelopoulos E S, Anastopoulos A Z, Kaklamani D I, et al.”Circular and elliptical 　 　　 CPW-fed slot and microstrip-fed antennas for ultra-wideband applications”. IEEE 　 　　 Antennas and Wireless Propagation Letters, 2006, 5: 294–297. [2]　 H. C. Liu, T. S. Horng and N. G. Alexopoulous, “ Radiation of Printed Antennas 　 　　　with a Coplanar Waveguide Feed,“ IEEE Trans. Antennas Proporgat., vol. 10, pp. 　 　　　1143-1148, 1995. [3]　 Evangelos S. Angelopoulos, Argiris Z. Anastopoulos, Dimitra I. Kaklamani,” Circular and Elliptical CPW-Fed Slot and Microstrip-Fed Antennas for Ultrawideband Applications”, IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 5, 2006 [4] CHENG P. WEN,, “Coplanar Waveguide: A Surface Strip Transmission Line Suitable 　 　　 for Nonreciprocal Gyromagnetic Device Applications,” IEEE Transactions On 　　 Microwave Theory And Techniques, Vol. MTT-17, NO. 12, December 1969. [5] 　Shantz, H. G “Planar Elliptical Element Ultra-Wideband Dipole Antenna”, In:IEEE 　 　　 APS/URSI Conference,2002. [6] T.Maruyama‘,M.Makikawa’,’’ ECG Measurement Using Capacitive Coupling Electrodes for Man-Machine Emotional Communication ”, IEEE/ICME International Conference on Complex Medical Engineering ,2007. [7] http://library.med.utah.edu/kw/ecg/ecg_outline/Lesson1/lead_dia.html 2010/11/17

Thank you For your attention 2010/11/17