Open AccessTransmission characteristics of a rectangular waveguide filled with anisotropic metamaterial
Author(s) -
Meng Fan-Yi,
Wu Qun,
Fu Jia-Hui,
Yang Guohui
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.5476
Subject(s) - metamaterial , waveguide , anisotropy , permittivity , optics , physics , transversal (combinatorics) , constitutive equation , materials science , transmission (telecommunications) , mathematical analysis , optoelectronics , dielectric , telecommunications , finite element method , mathematics , computer science , thermodynamics
The effective permittivity, effective permeability and the phase factor of a rectangular waveguide filled with an anisotropic metamaterial is derived through solving the wave equation. A group of important conclusions is obtained through discussing the relations between transmission characteristics of the waveguide and constitutive parameters of the filling metamaterial. It is shown that characteristics of the waveguide are determined by the transversal constitutive parameters when the operating frequency is higher than the cut_off frequency, and they are independent on the longitudinal constitutive parameters. However, below the cut off frequency, the characteristics of the waveguide are determined by both the transversal and longitudinal constitutive parameters. Two examples are calculated to demonstrate the above conclusions, and it is shown that calculated results are in a good agreement with the theoretical predictions. These results play important role in the applications of metamaterials to waveguide.