Metamaterial waveguide with loss compensation

This paper presents a silicon-based waveguide structure employing split ring resonators (SRRs) and distributed loss compensation mechanism suitable for fabrication. Higher phase constant is obtained by periodically loading waveguide (WG) with SRRs in sub-wavelength dimensions at the cost of extra large amount of losses. To relieve the losses problem, a circuitry is introduced in each SRR to compensate the loss while retaining the high phase constant achieved around the resonant frequency. This proposed waveguide with SRRs whose losses are compensated shows higher phase constant, lower attenuation constant and additional tunability compared to common waveguide.