Helical hollow waveguide with three dielectric layers in the cross section

Z. Menachem and S. Tapuchi

Journal of Electromagnetic Waves and Applications, 2018, vol. 32, issue 6, 781-796

Abstract: The main objective is to understand the influence of the three dielectric layers and a metallic layer (Ag) in the cross section of the helical hollow waveguide on the output fields, output power density, and output power transmission. The contribution of the proposed technique to calculate the refractive indices and the transverse derivative of the dielectric profile for three dielectric layers is important to reduce the transmission losses of the dielectric-coated metal waveguides, especially for the helical hollow waveguide. This contribution is very important to improve the method that based on the mode model. The output power transmission and output power density are improved using with three dielectric layers in the cross section of the helical hollow waveguide and by increasing the step’s angle or the radius of the cylinder of the helix, especially in the cases of space curved waveguides. This mode model can be a useful tool to improve the output results in all the cases of the helical hollow waveguide with three dielectric layers and a metallic layer (Ag) for practical applications, before carrying out experiments in the laboratory. The applications are useful for the helical hollow waveguide in the infrared regime.

Date: 2018
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DOI: 10.1080/09205071.2017.1406826

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