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http://dx.doi.org/10.5515/KJKIEES.2008.19.3.281

Closed-Form Green's Function for the Analysis of Microstrip Structure  

Yang, Seung-Woo (School of Electonics, Telecommunication and Computer Engineering, Korea Aerospace University)
Kim, Sung-Jin (School of Electonics, Telecommunication and Computer Engineering, Korea Aerospace University)
Kim, Gun-Woo (Samsung Thales Co., Ltd.)
Lee, Taek-Kyung (School of Electonics, Telecommunication and Computer Engineering, Korea Aerospace University)
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Abstract
In the layered medium, the Sommerfeld integral must be evaluated to calculate a space domain Green's function. The real axis integration method provides stable and accurate results over wide ranges of the observation distance and the singnal frequency. But this method has the in efficiency of approximation when the field point z is changed. Also, as the amplitude of z increases, the change of the spectral domain function is more rapidly. Therefore, the approximation is difficult when z becomes larger. In this paper, we propose a method to calculate an accurate closed-form Green's function for microstrip structure by using the closed-loop integration path.
Keywords
Green's Function; Closed-Form; Sommer-Feld; Raim; Pole;
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