Application of Finite Difference Frequency Domain Method for Analysis of Print Circuit Board

• Main Authors: Huang Tsung Sheng, 黃琮盛
• Other Authors: 吳俊德
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/28352834774912764895

碩士 === 大葉大學 === 電信工程學系碩士班 === 93 === Nowadays, the fast increase of clock frequency, the high frequency noise on power distribution network caused by simultaneous switching is a primary source of electromagnetic interference and signal integrity problem in high-speed digital circuit design. In multilayer printed circuit board, it is a common practice to use dedicated power and ground planes for power distribution network. Here, we first use the simple printed circuit board structure as guided wave structures. With this model, we use different methods to analyze the field dispersion characteristics of the printed circuit board. In this paper, we introduce a new method which is the two dimensional (2-D) finite difference frequency domain (FDFD). The longitudinal field components are eliminated in this method. Eigenvalue electric field components are derived from Maxwell’s differential equations. The finite-difference formulation is concluded as an eigen equation and then constructed by a highly sparse matrix. It is verified that the proposed method is numerically efficient and accurate.