Modeling of transmission lines with textured ground planes and investigation of data transmission by generating eye diagrams

Abstract

In this work, data transmission in transmission lines containing textured ground planes in the power distribution network is investigated. A lumped element model is developed to generate eye diagrams and circuit simulations are compared with measurements. A circuit model for a transmission line with an EBG ground plane is introduced. The circuit model for the EBG structure is developed based on using LC components and considering each patch as a parallel-plate transmission line. This modeling strategy allows including two important features to the individual LC stages representing the EBG surface: coupling to the signal line, and transverse loading of adjacent patches in the EBG structure. The circuit model parameters are calculated by using closed-form relations and applying the physical dimensions of the structure-under-test. The proposed model is employed to generate the scattering-parameter graphs and eye diagrams, which are compared with full-wave simulations and measurements to ensure validation of the results in both frequency and time domains.