A study of using graphene coated microstrip lines for crosstalk reduction at radio frequency

Crosstalk between printed-circuit board (PCB) neighboring routes is the most critical factor affecting signal quality in high-density and high-frequency electronic circuits. A technique based on employing graphene sheet as a coating layer for microstrip lines is investigated in this work. The test structure of two parallel microstrips is treated as symmetrical 4-port network and S parameters simulation is processed. It has been successfully demonstrated by simulation and comparison with all previous techniques that, graphene coated microstrip lines give the best optimum low values for the peak voltage of near-end crosstalk and far-end crosstalk jointly, with very low attenuation in the transmitted power absorbed by graphene coating layer. It also has great potential in offering low cost, lightweight and flexible shielding material.