Title page for etd-0612106-181922


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URN etd-0612106-181922
Author Kuan-Yu Lin
Author's Email Address calco@pcs.ee.nsysu.edu.tw
Statistics This thesis had been viewed 5575 times. Download 2785 times.
Department Electrical Engineering
Year 2005
Semester 2
Degree Ph.D.
Type of Document
Language English
Title Investigation of Package Effects and ESD Protections on the SAW Devices and Optimum Design of RFID Passive Transponder
Date of Defense 2006-06-03
Page Count 73
Keyword
  • Electrostatic Discharge (ESD)
  • Package
  • Surface Acoustic Wave Device
  • Finite Difference Time Domain (FDTD)
  • Radio Frequency Identification (RFID)
  • Abstract First, one of the purposes of this thesis is to estimate the complete crosstalk effects including the package and the pads on the surface acoustic wave (SAW) substrate. A new approach based on finite-difference time-domain (FDTD) with equivalent current source method is applied. Two kinds of patterns of one-port SAW resonators with the same package structure and inter-digital transducer (IDT) design are studied.  Verification with the measurement results shows that our method is able to obtain good agreement and be used to observe the influence from the SAW pattern. 
    Second, the equivalent current source method is extended to model the excitation of human-body’s electrostatic discharge (ESD) situations. The efficiencies of sacrificial electrodes are also discussed. Finally, a novel sacrificial electrode with fractal to protect SAW devices from ESD break is proposed. Comparing with traditional electrode, the simulation results show that fractal can improve the protective efficiency greatly.
    Finally, a novel analysis model that can be used to analyze and optimize the impedance of an RFID transponder integrated circuit (IC) which uses backscatter encoding based on simultaneously maintaining the BER of the reader and maximizing the received power of the transponder IC is proposed. The analysis method utilizes mapping from signal constellation of the backscattered signal to the Smith chart to relate the two parameters. Given the system specification and characteristics of the reader and transponder antennas, the optimum impedances of transponder IC for binary communication system can be easily designed by using this model.
    Advisory Committee
  • Kin-Lu Wong - chair
  • Tzong-Lin Wu - co-chair
  • Yu-De Lin - co-chair
  • Ming-Cheng Liang - co-chair
  • Tzyy-Sheng Horng - co-chair
  • Hsueh-Yung Chao - co-chair
  • Chih-Wen Kuo - co-chair
  • Ken-Huang Lin - advisor
  • Files
  • etd-0612106-181922.pdf
  • indicate access worldwide
    Date of Submission 2006-06-12

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