Fig. 1. Multi-band Terahertz filter structure

Fig. 2. Transmittance of filter at TE and TM modes

Fig. 3. Study on dependence of polarization angle

Fig. 4. Transmission coefficient of filter for different substrate thicknesses

Fig. 5. Transmission coefficient of filter for different resonator thicknesses

Fig. 6. Transmission coefficients of filter with different gaps

Fig. 7. Offset of the four resonant points of filter at different dielectric constants of liquid crystal

Fig. 8. Normalized parameters with real and imaginary parts

Fig. 9. Energy density distribution of electromagnetic field