Regresar

Reduction of radiation losses of the single-wire waveguide at THz frequencies

Abstract:

In the last years, many experiments have shown that the single wire waveguide (SWW) is able to guide wide-band THz signals with very low attenuation and negligible dispersion. However, since energy is not transversally bounded, when the wire is bent, strong radiation losses take place. This drawback really limits the practical use of this interesting waveguide. To reduce the radiation on bends one can add a dielectric coating or use a small wire radius, getting better results when both options are combined. Nevertheless, in those cases, the propagation losses of the waveguide become very high and it is no longer a good option for THz waveguiding. © 2013 IEEE.