Electrical characteristics of single and coupled stripline on meshed ground plane in high-speed package

In high-speed packages, the high-frequency characteristic of the interconnection structure becomes increasingly important. In this paper, the propagation characteristics of the stripline placed on the meshed ground plane (SMEP) are determined. The effective dielectric constant and the characteristic impedance of the single SMEP are determined by utilizing the full-wave analysis. For the longitudinally periodic structure modeling of SMEP, the finite-difference time-domain method based on Floquet´s theorem is used. The slow wave effect and the high impedance characteristic are observed. In addition to the single SMEP analysis, the propagation and coupling property of the coupled SMEP is also presented, which is very important in the cross-talk modeling