The effects of slot lines in a dual-band slow wave structure assisted by metamaterials are investigated in this work. Our results show that when the number of slot lines rises, the concurrently, frequency rises as well. We performed a cold test using the Eigenmode solver in simulation to calculate the dispersion and high impedance of interaction in the C- and X- bands at resonant frequencies i.e. 6.8 GHz and 11.2 GHz. The dual-band DB-CeSRR stands for complementary electric split ring resonator. In a circular waveguide, unit cells are integrated to measure the Dual-band MTM SWS transmission and reflection coefficients.