Title page for etd-0131112-184231


[Back to Results | New Search]

URN etd-0131112-184231
Author Jhih-jie Chen
Author's Email Address No Public.
Statistics This thesis had been viewed 5559 times. Download 302 times.
Department Electrical Engineering
Year 2011
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title A Novel Power Management Technique Applied in Non- Contact Vital Sign Detection System
Date of Defense 2012-01-05
Page Count 124
Keyword
  • phase shifter
  • null detection point
  • non-contact vital sign sensor
  • power management
  • green energy
  • DC offset
  • Abstract This paper presents a novel power management analysis method to reduce the power consumption for the non-contact vital sign sensor. The sensor consisting of the class-E power amplifier (PA), low noise amplifier (LNA), single pole double through (SPDT) switch, and circularly polarized antenna (CPA) is integrated on the Flame Retardant Class 4 (FR-4) epoxy-glass laminate substrate. The appropriate pulse width and pulse period are determined to decrease the power consumption and accurately detect the human physiological signals (respiration and heartbeat). A simple direct down-conversion architecture with a tunable phase shifter is utilized to eliminate the null detection point and the direct current (DC) offset. The overall power consumption of the proposed sensor with the novel power management technique is only 40 % of the conventional system with the DC bias, which can be utilized for the green energy application.
    Advisory Committee
  • Tzyy-Sheng Horng - chair
  • Ken-Huang Lin - co-chair
  • Chih-Wen Kuo - co-chair
  • Chie-In Lee - advisor
  • Files
  • etd-0131112-184231.pdf
  • Indicate in-campus at 5 year and off-campus access at 5 year.
    Date of Submission 2012-01-31

    [Back to Results | New Search]


    Browse | Search All Available ETDs

    If you have more questions or technical problems, please contact eThesys