Title page for etd-0808112-141533


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URN etd-0808112-141533
Author Yu-Lin Chan
Author's Email Address No Public.
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Department Electrical Engineering
Year 2011
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title A Numerical Method to Solve the Divergence Issue of Microwave Circuit Model Extraction
Date of Defense 2012-07-18
Page Count 64
Keyword
  • Singular Value
  • Eigenvalue
  • Causality
  • Passivity
  • Hilbert Transform
  • Abstract With the development of consumer electronics, the circuitry structure become more complex, For this reason, it might cause numerical errors to be cumulated in the simulation using the numerical electromagnetic algorithm, and result in simulated divergence or error. The two reasons of numerical error are passivity and causality, which priginate from the defect in the numerical calculation. In this thesis, for this problem, investigate the numerical compensation method for passivity, The occurrence of passive will make the frequency point of power is negative, this will makes the system divergence, Improve this problem, passivity verification and enforcement by eigenvalue in the Y-parameter, in the S-parameter by the singular value, causality conditions must be match with the imaginary part and the real part relationship, such as the Hilbert transform or the Kramer-Kronig relation, can be used to make causal verification and enforcement.
    Through some numerical methods, used simulation software such as: HFSS, ADS simulation of the microwave circuit model extraction, modified singular value, eigenvalue, and reached to reduce the numerical error, let it satisfy the convergence and avoid incorrect results, and minimize the impact of the initial data, does not change the characteristics of the original module, but also to solve the passive and the issue of causality.
    Advisory Committee
  • Ken-Huang Lin - chair
  • Chie-In Lee - co-chair
  • Ming-Cheng Liang - co-chair
  • Chih-Wen Kuo - advisor
  • Files
  • etd-0808112-141533.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2012-08-08

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