Abstract:
The rectangular E-plane dielectric loaded metallic waveguide equivalent circuit with dielectric of an arbitrary shape, occupying all height of the waveguide is established using the New Multimodal Variational Formulation (NMVF). The advantage of this rigorous approach compared to the traditional multimodal variational formulation lies in the taking into account of all higher-order modes of the intermediate waveguides in the calculation of the overall structure's impedance matrix Z, thus resulting in increasing the results accuracy and decreasing the computing time. This new passive microwave components analysis and aided-design tool is applied firstly to analyze a rectangular loaded waveguide with one and two centered cylindrical dielectric posts and then one section transformer dielectric phase shifter and secondly, to design an evanescent dielectric resonators band-pass filter in X-band. The results obtained are in good agreement with literature data and FEM software simulations.
Desire Lilonga-Boyenga and Gilbert Okoumou-Moko, 2007. Characterization of a Dielectric E-Plane Loaded Waveguide by the NMVF: Application to Filters Design. Journal of Applied Sciences, 7: 3983-3988.
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