Wideband Millimeter-Wave Substrate Integrated Suspended Twisted Line for High-Speed Transmission

This article proposes a novel substrate integrated suspended twisted line (SISTL), which can broaden the transmission bandwidth of the transmitted signal and reduce the external radiation of the transmission line through a self-packaging format. Specifically, the wide transmission bandwidth is obtained in this designed structure by combining theoretical analysis and optimizing the variables. The mixed-mode scattering parameters and eye diagrams are employed to measure the quality of the transmitted signal, demonstrating the feasibility of the proposed design. Moreover, the results show that the max bandwidth of SISTL is more than 50 GHz, and at this time, the data transmission rate can be up to 32 Gbps with an exemplary eye diagram and a low bite error rate.