Author(s)

Hana Mohammed Mousa

Physics Department, Al-Azhar University, Gaza, Palestine.

This paper tackles the wave attenuation along with a cylindrical waveguides composed of a left Handed material (LHM), surrounded by a superconducting or metal wall. I used the transcendental equations for both TE and TM waves. I found out that the waveguide supports backward TE and backward TM waves since both permittivity and magnetic permeability of LHM are negative. I also illustrated the dependence of the TE and TM wave attenuation on the wave frequency and the reduced temperature of the superconducting wall (T/T_c). Attenuation constant increases by increasing the wave frequency and it shows higher values at higher T/T_c. Lowest wave attenuation and the best confinement are achieved for the thickest TE waveguide. LHM-superconductor waveguide shows lower wave attenuation than LHM-metal waveguide.

Left Handed Material; TM Waves; TE Waves; Attenuation Constant; Waveguides; Superconductor; Metal

H. Mousa, "Attenuation in a Cylindrical Left Handed Material (LHM) Wave-Guide Structure," Optics and Photonics Journal, Vol. 2 No. 1, 2012, pp. 46-53. doi: 10.4236/opj.2012.21007.