Fig. 1. SSPPs unit cell and dispersion curves. (a) Layout of SSPPs unit cell with rectangular grooves; (b) dispersion curves of SSPPs unit cell with rectangular grooves

Fig. 2. Schematic configuration of proposed terahertz low-loss TL based on SSPPs

Fig. 3. Simulated results of conventional SSPPs TL and optimized SSPPs TL

Fig. 4. Schematic configuration and simulated dispersion results of terahertz SSPPs filter unit cell based on SSPPs TL. (a) Schematic configuration of terahertz SSPPs filter unit cell; (b) dispersion curves of unit cell

Fig. 5. Influence of structural parameters of SRR on performance of SSPPs filter. (a) Influence of SRR branch length L_s on performance of SSPPs filter; (b) influence of number of SRRs on performance of SSPPs filter

Fig. 6. Schematic configuration of proposed terahertz SSPPs filter with rejection band based on loading SRRs

Fig. 7. Simulated results of proposed terahertz SSPPs filter with rejection band based on loading SRRs

Fig. 8. Simulated results of proposed terahertz SSPPs filter with rejection band for loading two SRRs with branch lengths of 100 μm and 130 μm

Fig. 9. Terahertz low-loss TL based on SSPPs and SSPPs filter. (a) SSPPs TL; (b) SSPPs filter

Fig. 10. Measurement setup of proposed terahertz low-loss TL based on SSPPs and SSPPs filter

Fig. 11. Measured (dashed line) and simulated (solid line) results of proposed low-loss terahertz SSPPs TL

Fig. 12. Measured (dashed line) and simulated (solid line) results of proposed terahertz SSPPs filter

Fig. 13. Effect of fabrication error on transmission performance of SSPPs TL. (a) Effect of x₁ fabrication error X(x₁); (b) effect of x₂ fabrication error X(x₂)

Fig. 14. Effect of fabrication error on transmission performance of SSPPs filter. (a) Effect of SRR offset fabrication error X(u); (b) effect of w_s fabrication error X(w_s)