Crosstalk mitigation enhanced by reference conductor position

Electromagnetic coupling to cables has been a major source of electromagnetic compatibility and electromagnetic interference problems. In this paper, we propose a simple and easy technique to reduce crosstalk between three-conductor transmission lines. We used ribbon cable with circular cylindrical section immersed in a homogeneous medium. First, we present two electric equivalent models for three-conductor transmission lines. These models allow us to calculate crosstalk between conductors. Secondly, to validate the presented models, we compare the theoretical results with simulation data. Finally, by changing the position of the reference line we demonstrate that the crosstalk changes also and the smallest value is reached when we choose the reference line in the middle of the structure.