**4. Conclusions**

An efficient and accurate approach to evaluate CGP-EBG MTM-DTLs using an analytical model and segmentation method was proposed. The four-port model of the CGP-EBG segments was extracted using coupled-line theory and an analytical via model. For a finite array of CGP-EBG MTM-DTLs, the method of Z-parameter recombination was presented. The proposed analytical model was thoroughly validated by comparisons with full-wave simulations based on FEM. The CM noise suppression and differential signal transmission results of the CGP-EBG MTM-DTL variants were consistent between the proposed model and full-wave simulations. However, the computation time for estimating the characteristics of the CGP-EBG MTM-DTL was drastically reduced when using the proposed model. Moreover, the proposed model can be easily combined with other types of circuit and electromagnetic models, thus enabling system-level simulations for high-speed PCB applications. Overall, the assessment of CGP-EBG MTM-DTLs in early design stages and simulation-based verification can be efficiently and accurately conducted using the proposed analytical model. In this paper, the CGP-EBG MTM-DTL for one pair of differential lines was explored. For further research, the CGP-EBG MTM-DTL and its analytical model of multiple pairs of differential lines for emerging technologies of high-speed differential signaling can be examined.

**Author Contributions:** The author conceived and designed the experiments, analyzed the characteristics, performed the simulations and experiments, and wrote the paper.

**Funding:** This work was supported by the National Research Foundation of Korea (NRF) gran<sup>t</sup> funded by the Korea governmen<sup>t</sup> (Ministry of Science, ICT & Future Planning) (NRF-2016R1C1B1007123).

**Conflicts of Interest:** The author declares no conflicts of interest.
