Research Article

An Efficient Semianalytical Modal Analysis of Rectangular Waveguides Containing Metamaterials with Graded Inhomogeneity

Figure 4

The dispersion relations of the CRLHM-filled rectangular waveguide’s LSE modes for exponential, linear, parabolic, and constant profiles and the dispersion relation of the TE10 modes of a hollow rectangular waveguide with the same dimension, .