Abstract
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/Tc). Attenuation constant increases by increasing the wave frequency and it shows higher values at higher T/Tc. 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.
Highlights
There has been a great interest in new type of electromagnetic materials called left-handed media [1]
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
Lowest wave attenuation and the best confinement are achieved for the thickest TE waveguide
Summary
There has been a great interest in new type of electromagnetic materials called left-handed media [1]. Fifty years, Veselago was the first scientist to consider the left-handed meta-material (LHM) He defined it as media with simultaneously negative and almost real electric permittivity and magnetic permeability in some frequency range [2]. Intensive materials research have resulted in techniques, notably laser-ablation and radio-frequency sputtering In this analysis, a theoretical study of the propagation characteristics of TE and TM waves guided by an optical structure is presented. A theoretical study of the propagation characteristics of TE and TM waves guided by an optical structure is presented This structure consists of a left Handed material (LHM) cylinder with superconducting walls like YBa2Cu3O7−x. This structure consists of a left Handed material (LHM) cylinder with superconducting walls like YBa2Cu3O7−x. h and h are electric permittivity and magnetic permeability of LHM respectively
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