Numerical modeling of PCB power/ground plate-pairs by DGTD method taking into account decoupling capacitors
Type
Conference PaperKAUST Department
Computational Electromagnetics LaboratoryComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Date
2018-02-01Online Publication Date
2018-02-01Print Publication Date
2017-12Permanent link to this record
http://hdl.handle.net/10754/631528
Metadata
Show full item recordAbstract
A discontinuous Galerkin time-domain (DGTD) method is proposed in this work to analyze printed circuit board (PCB) power/ground plate-pair having arbitrarily shaped anti-pads. To apply proper excitation source over the irregular anti-pad, the implemented wave port magnetic current excitation is expanded by the electric eigen-modes of the anti-pad that are calculated via either numerical approach or analytical method. Based on the orthogonality of eigen-modes, the temporal mode expansion coefficient for each mode can be conveniently extracted. Besides, considering the presence of decoupling capacitors, the whole physical system can be split into field and circuit subsystems. For the field subsystem, it is governed by the Maxwell's equations, thus it will be solved by DGTD method. For the circuit subsystem, the modified nodal analysis (MNA) is applied. In order to achieve the coupling between the field and circuit subsystems, a lumpled port is defined at the interface between the field and circuit subsystems. To verify the proposed algorithm, several representative examples are benchmarked.Citation
Li P, Jiang LJ, Bagci H (2017) Numerical modeling of PCB power/ground plate-pairs by DGTD method taking into account decoupling capacitors. 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS). Available: http://dx.doi.org/10.1109/EDAPS.2017.8276909.Conference/Event name
2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2017Additional Links
https://ieeexplore.ieee.org/document/8276909ae974a485f413a2113503eed53cd6c53
10.1109/EDAPS.2017.8276909