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The field patterns in elliptic-shaped microshield lines loaded with left-handed materials are analyzed by edge-based finite element method. The left-handed material is defined by assigning to it a negative permittivity and negative permeability simultaneously. The field patterns include the dominant mode and the first higher-order mode. Some illustrated figures provided in this paper are considered...
Transmission characteristics of depressed-ridge waveguide are analyzed by the finite element method. Design data of cutoff wavelength of the dominant mode and single-mode bandwidth for different ridge dimensions are presented in tabulated forms. Field patterns of the dominant mode and the first higher-order TE mode are also illustrated. Numerical results are obtained, which are useful in the design...
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