Applicability of Cavity Modeling Technique to Analyze Complex Waveguide Structures Involving Cavity Cross Couplings

Analysis of Field Propagation inside A Waveguide Diplexer using Cavity Model Analysis

“…If the scattered field is in the waveguide region then it is called a 'waveguide scattered field' whereas if the scattered field is in the cavity region then it is called the 'cavity scattered field'. The scattered field in the waveguide region can be derived using the modal expansion method [16][17][18] whereas the scattered field in the cavity regions can be derived using the Greens function approach [16,17,19]. The source field is the dominant TE10 mode and can be present in the input waveguide only (in this case in the region W1).…”

“…Applying the continuity condition of tangential magnetic fields, the boundary equations on the different apertures of the DOI: http://dx.doi.org/10.32452/IJAMT.2022.296300 © 2023 IJAMT network can be derived. The boundary equation will be in terms of unknown magnetic currents and can be solved using Galerkin's specialization of the method of moments [16,17,20]. This will provide the fields at different apertures and Sparameters of the network.…”

“…This paper presents a field-theoretic approach [16,17] that can be used to analyze the field propagation inside a diplexer network and understand the working principle of the network. Since a large number of diplexer networks are already available in open literature with excellent network characteristics, it felt useless to design another diplexer network.…”