Abstract
We propose a new type of differential microstrip line that can reduce the crosstalk between this differential pair and conventional single-ended microstrip lines. The structure of the proposed differential microstrip line is based on coupled conventional microstrip lines with their edge replaced by hairpin periodic subwavelength pattern. We found, numerically and experimentally, that the spoof surface plasmon polaritons (SPPs) at microwave frequencies exist in such a structure. It is revealed by EM field simulation that the spoof SPPs mode is highly localized on the surface of the periodic differential microstrip line. This leads to the weak coupling and crosstalk between the differential structured microstrip line and single microstrip line. The observation can be hopefully applied to improve the signal integrity performance in high density microwave circuits.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
