Multimode network representation of two dimensional steps in rectangular waveguides
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Research GroupGrupo Electromagnetismo Aplicado a las Telecomunicaciones
Knowledge AreaTeoría de la Señal y las Comunicaciones
Realizado en/conEuropean Space Research and Technology Center (ESTEC)
Bibliographic CitationA. A. Melcon and M. Guglielmi, "Multimode Network Representation of Two Dimensional Steps in Rectangular Waveguides," 1994 24th European Microwave Conference, Cannes, France, 1994, pp. 1943-1948.
Analysis of waveguide devices
Multimode Network Representations
In this paper a new Multimode Network representation for arbitrary rectangular waveguide junctions is presented. The energy coupling between the higher order modes excited in the junction is rigorously described via a multimode impedance matrix representation that can be used to build very efficient and accurate software tools for the analysis of complex structures. The elements of the impedance matrix are obtained from the solution of an integral equation. The main feature of the approach is that the kernel of the integral equation derived is essentially independent from frequency and therefore, the most time consuming task, namely the solution of the integral equation, need to be performed only once per each geometry. The formulation of the method is discussed and the form of the integral equation is given, showing explicitly the dependence with the frequency. A frequency extraction procedure that can lead to a considerable time saving for the analysis of complex structures is also ...
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