DC power-bus modeling in high-speed digital design using the FDTD method is reported here. The dispersive medium is approximated by a Debye model to account for the loss. A wide band frequency response (100 MHz-5 GHz) is obtained through a single FDTD simulation. Favorable agreement is achieved between the modeled and measured results for a typical DC power-bus structure with multiple SMT decoupling capacitors mounted on the board. The FDTD tool is then applied to investigate the effects of local decoupling on a DC power-bus. The modeled results agree with the results from another modeling tool, the CEMPIE (a circuit extraction approach based on a mixed-potential integral equation formulation) method

Meeting Name

IEEE Conference on Electrical Performance of Electronic Packaging, 2000


Electrical and Computer Engineering

Keywords and Phrases

100 MHz to 5 GHz; CEMPIE Method; DC Power Bus Design; DC Power-Bus; DC Power-Bus Modeling; DC Power-Bus Structure; Debye Model; FDTD Method; FDTD Modeling; FDTD Simulation; FDTD Tool; Capacitors; Circuit Extraction; Digital Circuits; Dispersive Media; Dispersive Medium Debye Mode Approximation; Finite Difference Time-Domain Analysis; Frequency Response; High-Speed Digital Design; Integral Equations; Local Decoupling; Loss; Mixed-Potential Integral Equation Formulation; Modeling Tool; Multiple SMT Decoupling Capacitors; Power Supply Circuits; Printed Circuit Design; Surface Mount Technology; Wide Band Frequency Response

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2000 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.