Fig. 1. Classic SSRR structure.

Fig. 2. S21 curve for a SSRR with excitations in differently polarized orientations. (a) Simulated results. (b) Experimental results.

Fig. 3. Influence of d1 and d2 on the resonance characteristics for the 0° and 90° polarized waves: (a) with different d1 values (d2=20  μm), (b) with different d2 values (d1=20  μm).

Fig. 4. Surface-induced current distributions of the SSRR (a) for the 0° polarized wave at 322.8 GHz, (b) for the 90° polarized wave at 410 GHz.

Fig. 5. (a) Photograph and (b) microscope image of MSRR1.

Fig. 6. S21 for MSRR1 excited with differently orientated linearly polarized waves. (a) Simulations. (b) Experiments.

Fig. 7. Simulated S21 of MSRR1 for the 0° and 90° polarized waves with 15° and 30° incident angles.

Fig. 8. (a) Photograph and (b) microscope image of MSRR2.

Fig. 9. S21 for MSRR2 excited with differently orientated linearly polarized waves. (a) Simulations (b) Experiments.