Rigorous Analysis of Electromagnetic Wave Propagation in Cylindrical Dielectric Waveguide Array |
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Authors: | Jia-sheng Tian Tian-lin Dong |
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Affiliation: | 1. Department of Electronics and Information, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, People's Republic of China
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Abstract: | Cylindrical Dielectric Waveguide Array(CDWA) should be considered as a kind of two-dimensionally periodic(2DP) medium. Based on the established rigorous theory for 2DP medium, a great amount of numerical results for CDWA were presented. Wave propagation in CDWA was analyzed in detail in this paper. Firstly, given the longitudinal wave vector (k z=0), Brillouin dispersion relations between transverse wave vectors were analyzed when modulation coefficients or the rate of different dielectric areas in a unit cell varied. Interactions between space harmonics were also studied. Secondly, when the area of dielectric cylinder in the unit cell varied within a given range, CDWA dispersion relations were compared with Rectangle Dielectric Waveguide Array's, some interesting conclusions were obtained. |
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