Title page for etd-0816107-183237


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URN etd-0816107-183237
Author Jr-yung Du
Author's Email Address No Public.
Statistics This thesis had been viewed 5578 times. Download 7033 times.
Department Electrical Engineering
Year 2006
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title A Study of Digital Baseband Predistortion Technique for Linearizing RF Power Amplifiers
Date of Defense 2007-07-16
Page Count 74
Keyword
  • Power Amplifier
  • LUT
  • Digital Predistortion
  • Abstract This thesis presents a transmitter with digital baseband predistorter to improve linearity of power amplifier. The architecture adopts the look-up table predistorter base on a polar scheme, and realizes the digital processor using FPGA. The predistortion for AM/AM and AM/PM nonlinear relations in a 0.5μm GaAs pHEMT class-AB power amplifier has been performed. One-tone, two-tone and multi-tone continuous waves generated by baseband signal are used for linearity test. The results demonstrate that the digital predistortion technique can effectively improve intermodulation distortion. With this technique, the power amplifier can operate in the higher power range to achieve a similar linearity and a higher efficiency.
    Advisory Committee
  • Sheng-Fuh Chang - chair
  • Tzong-Lin Wu - co-chair
  • Kang-Chun Peng - co-chair
  • Huey-Ru Chuang - co-chair
  • Tzyy-Sheng Horng - advisor
  • Files
  • etd-0816107-183237.pdf
  • indicate access worldwide
    Date of Submission 2007-08-16

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