本論文旨在建立脈波寬度調變(Pulse Width Modulation)信號，於非接觸式感應耦合傳輸通道特性的估計方法。首先從理論推導到出PWM信號的工作週期錯誤(Duty Cycle Error)與感應耦合傳輸通道的接收頻帶寬(Receiver Bandwidth)之關係，同時也推導到出非接觸式感應耦合傳輸系統之轉移函數(Transfer Function)。因不同接收頻帶寬可估計出PWM信號不同的工作週期錯誤(Duty Cycle Error)，由工作週期錯誤估計出解析度(Resolution)，進而利用解析度得到資料傳輸率(Data Rate)。文中除了完成相關理論之推導，並同時進行應用與電腦模擬，藉由MATLAB/Simulink來驗證本論文理論的正確性，由應用與模擬驗證的結果可知，本論文提出之估計方式具有可行性。

This thesis aims at setting up Pulse Width Modulation (PWM) signal for the characteristic calculation method of the communication channel in the coupling of contact-less induction. At first, derive to theory from the relationship of the PWM Duty Cycle Error and the communication channel receive bandwidth of the induction coupling structure. At the same time, derive to the transfer function of the contact-less induction coupling transmission system. Because different receives bandwidth can calculate different Duty Cycle Error of the PWM signal, and then calculation Resolution with Duty Cycle Error, utilize Resolution to get Data Rate. Except finish the deriving of relevant theories in the article, furthermore proceed the application and simulation with the computer, verification the exactitude of the theory of this thesis with MATLAB/Simulink. The result of simulation and application that can know the calculation method in which this thesis puts forward has feasibility.

[1] Genemala Haobijam, Manikumar K and Roy Paily, “RFID Circuit Design with Optimized CMOS Inductor for Monitoring Biomedical Signals,” Dept. of ECE, Indian Institute of Technology Guwahati, India-781039, 15th International Conference on Advanced Computing and Communications, pp.203-208, December 2007.
[2] Maysam Ghovanloo, Suresh Atluri, “An Integrated Full-Wave CMOS Rectifier With Built-In Back Telemetry for RFID and Implantable Biomedical Applications,” IEEE Transactions Circuits and Systems I, Regular Papers, pp.3328 – 3334, Nov. 2008.
[3] Guoxing Wang, Wentai Liu, Mohanasankar Sivaprakasam, and Gurhan Alper Kendir, “Design and Analysis of an Adaptive Transcutaneous Power Telemetry for Biomedical Implants,” IEEE Transactions Circuits and Systems I, Regular Papers, Vol. 52, NO.10, pp.2109-2117, October 2005.
[4] Rahul Sarpeshkar, Woradorn Wattanapanitch,Benjamin I. Rapoport, Scott K. Arfin, Michael W.Baker, Soumyajit Mandal, and Michale S. Fee, “Low-Power Circuits for Brain-Machine Interfaces,” IEEE International Symposium Circuits and Systems, 2007. ISCAS, pp.2068 - 2071 , May 2007
[5] Wentai Liu, et al., Multiple-Unit Artificial Retina Chipset System To Benefit The Visually Impaired, Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, & The Wilmer Eye Institute, Johns Hopkins University, Baltimore.
[6] Ming Yin, Maysam Ghovanloo, “A Wideband PWM-FSK Receiver for Wireless Implantable Neural Recording Applications,” IEEE International Symposium Circuits and Systems, 2008. ISCAS, pp.1556-1559, May 2008.
[7] Maysam Ghovanloo, Khalil Najafi, “A Wideband Frequency-Shift Keying Wireless Link for Inductively Powered Biomedical Implants,” IEEE Transactions Circuits and Systems I, Regular Papers, Vol. 51, NO. 12, Dec. 2004.
[8] Simon Haykin, Communication Systems, 4th Edition, John Wiley & Sons, Inc., New York, 2000.
[9] David K. Cheng, Field and Wave Electromagnetics, 2nd Edition, Addison Wesley, New York, 1989.
[10] Gerald, J.A.B., Tavares, G., Piedade, M.S., Varela, E., Ribeiro, R., “RF-LINK FOR CORTICAL NEUROPROSTHESIS,” IEEE International Symposium Circuits and Systems, 2005. ISCAS, Vol.13, pp.2739 – 2742, Dec. 2004.
[11] Sohee Kim, Oliver Scholz, “Implantable Active Telemetry System using Microcoils,” Proceedings of the 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference Shanghai, China, pp.7147-7150, Sep. 2005.
[12] Ziemer Tranter, Principles of Communications: Systems, Modulation, and Noise, 4th Edition, John Wiley & Sons, Inc., New York, 2000.
[13] John Pearson原著，基礎通信理論( Basic Communication Theory)，王誌麟譯，東華書局，台北市，民國八十九年。
[14] 林銀議，數位通訊原理-調變解調，初版，五南圖書公司，台北市，民國九十四年。
[15] 陳嘉緯，「非接觸式感應充電杯之研製」，國立成功大學，碩士論文，民國九十七年。
[16] Bernard Sklar, Digital Communications: Fundamentals and Applications, 2nd Edition, Prentice-Hall International, Inc., New Jersey, USA., 2001.
[17] Ming Yin, Maysam Ghovanloo, “Using Pulse Width Modulation for Wireless Transmission of Neural Signals in Multichannel Neural Recording Systems,” IEEE International Symposium Circuits and Systems, 2007. ISCAS, pp.3127 - 3130, May 2007.
[18] Yamu Hu, Mohamad Sawan, “A Fully Integrated Low-Power BPSK Demodulator for Implantable Medical Devices,” IEEE Transactions Circuits and Systems I, Regular Papers, Vol. 52, NO. 12, pp. 2552 - 2562 Dec. 2005.
[19] 吳文忻等編著，通訊系統設計與模擬，初版，鈦思科技，台北市，民國九十八年。.
[20] C. Richard Johnson Jr., William A. Sethares, Telecommunication Breakdown, Prentice-Hall International, Inc., Upper Saddle River, New Jersey,USA., 2003.
[21] R. Jacob Baker, CMOS Circuit Design, Layout, and Simulation, 2nd Edition, Wiley-IEEE Press, John Wiley & Sons, Inc., New York, 2004.
[22] Ghazi Ben Hmida, Hamadi Ghariani, Mounir Samet, “Design of Wireless Power and Data Transmission Circuits for Implantable Biomicrosystem,” LETI, Department of Electrical Engineering, National Engineers School of Sfax, Tunisia, pp.153 – 164, 2007.