Comment on: Transmission characteristics of wave modes in a rectangular waveguide filled with anisotropic metamaterial: Comment on: Transmission characteristics of wave...: M. M. Bait-Suwailam, A. Moradi.
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| Title: | Comment on: Transmission characteristics of wave modes in a rectangular waveguide filled with anisotropic metamaterial: Comment on: Transmission characteristics of wave...: M. M. Bait-Suwailam, A. Moradi. |
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| Authors: | Bait-Suwailam, Mohammed M.1,2 (AUTHOR) msuwailem@squ.edu.om, Moradi, Afshin3 (AUTHOR) a.moradi@kut.ac.ir |
| Source: | Applied Physics A: Materials Science & Processing. Feb2025, Vol. 131 Issue 2, p1-3. 3p. |
| Subjects: | Rectangular waveguides, Dispersion relations, Wave equation, Theory of wave motion, Anatomical planes |
| Abstract: | Meng et al. previously investigated the transmission characteristics of wave modes in a rectangular waveguide filled with a lossless anisotropic metamaterial. They derived and analyzed wave equations and dispersion relations for TE z and TM z (i.e., TE and TM waves related to the z-axis) modes under general conditions and then focused on a specific case where the permittivity and permeability tensors were isotropic in the transverse plane (i.e., when ε x = ε y = ε t and μ x = μ y = μ t ). In this comment, we highlight a critical issue: under general anisotropic conditions, a rectangular waveguide cannot support independent TE z and TM z modes. Instead, hybrid wave propagation is expected. As a result, the dispersion relations presented for the general case in the original study are incorrect. This comment provides a detailed analysis to clarify the conditions under which these modes can propagate accurately in rectangular waveguides filled with anisotropic metamaterials. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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