A Novel Differential Microstrip Line Based on Spoof Surface Plasmon Polaritons

A novel single-ended differential microstrip line based on spoof surface plasmon polaritons (SSPPs) is proposed in this paper. It has excellent transmission performance from 0.2 GHz to 12 GHz. Moreover, the transmission line reduces the common mode effect. Furthermore, the crosstalk between the microstrip line and the conventional microstrip line is very small, which shows that the new structure of the single-ended differential microstrip line can restrain the crosstalk. The proposed single-ended differential microstrip line has a broad prospect in the circuit system.