Showing papers by "Rakesh Malik published in 2012"

Damping the cavity-mode anti-resonances' peaks on a power plane by swarm intelligence algorithms

Abstract: Swarm intelligence is applied to a module of high speed system design problem. To maintain power integrity in a high speed system, an effective methodology for suppressing the cavity-mode anti-resonances' peaks is presented. The optimal values and the optimal positions of the decoupling capacitors are found using three different swarm intelligence methods - particle swarm optimization, cuckoo search method and firefly algorithm. Optimum values and locations of decoupling capacitors are obtained, by which anti-resonances' peaks of loaded board are minimized.

Signal Integrity and Power Integrity Issues at System Level

Abstract: System-level signal integrity (SI) and power integrity (PI) problems are taken into account. System-level simulation of high-speed systems with effect of external environment is described. SI and PI issues with complete analysis of package, board, termination, squid card, and decoupling network are shown. Common problems of simulations-passivity violation, stability, causality, and interoperability, are also discussed.

Maintaining Power Integrity by damping the cavity-mode anti-resonances' peaks on a power plane by Particle Swarm Optimization

Abstract: To maintain Power Integrity in a high speed system, an effective methodology for suppressing the cavity-mode anti-resonances peaks is presented. The optimum values and the optimal positions of the decoupling capacitors are found using Particle Swarm Optimization, which leads to optimum impedance of power plane loaded with decoupling capacitors. Optimum number of capacitors and their values, by which impedance of loaded board is matched below the target impedance of the system, are found.

Mitigation of simultaneous switching noise on EBG planes using firefly algorithm

Abstract: In this paper, a meta-heuristic optimization algorithm is proposed for the design of Electromagnetic Band Gap (EBG) structures to suppress simultaneous switching noise (SSN) on printed circuit boards. This algorithm offers optimized dimensions of EBG unit cell at desired frequency band. A design example of 2D planar EBG structure in the specified frequency band is presented. The simulated results are found to be in good agreement with the analytical results.