Two Dimensional Multi-Port Method for Analysis of Propagation Characteristics of Substrate Integrated Waveguide

Abstract

Abstract-In this paper, two dimensional multi-port method is used to analyze substrate integrated waveguide by using Green's function approach to obtain the impedance matrix of equivalent planar structure. Modes propagation constant of substrate integrated waveguide, as a periodic structure, is calculated by applying Floquet's theorem on the impedance matrix of a unit cell. Field distribution of the propagating mode is obtained by this method. Results obtained by this method are verified, in a broad range of dimensions, by comparing with published results and also those calculated by commercial electromagnetic simulator, HFSS. Electromagnetic band gaps and mode conversion phenomenon as properties of periodic structures are also observed and investigated. Mode conversion in SIW is reported for the first time by our proposed method.

A hybrid neural model for the characterization of a single layer SIW waveguide

“…Due to its periodicity, the characteristics properties of this device can be deduced by its unit-cell representation (see Fig. 1 (b)) [14,16]. Exploiting the two dimensional multi-port method developed in [16], the cell's impedance matrix Z, at an assigned angular frequency ω, can be computed numerically.…”

“…1 (b)) [14,16]. Exploiting the two dimensional multi-port method developed in [16], the cell's impedance matrix Z, at an assigned angular frequency ω, can be computed numerically. If v in , i in , v out , i out , are the (1 × N ) input and output voltages and currents vectors related to the cell's ports, with N the number of modes considered, we have…”

Analysis of Lossy Siw Structures Based on the Parallel Plates Waveguide Green's Function

“…Recently, several techniques have been proposed that may significantly shorten the design and optimization process. In [10] the Boundary Integral Resonant Modes Expansion (BIRME) has been adapted to analyze efficiently post walled structures, in [11][12][13] SIWs have been analyzed considering only the presence of the parallel plate waveguide (PPW) TEM mode and taking into account the scattering by the metallic posts, so reducing the analysis to the solution of a two dimensional problem. In [14] the authors presented a technique based on the full dyadic Green's function of the parallel plate, expressed as series of vector wave functions [16] TE and TM with respect to the waveguide height.…”

Characterization of Lossy Siw Resonators Based on Multilayer Perceptron Neural Networks on Graphics Processing Unit

“…Filters [1], antennas [2], power combiners [3,4] and other devices have been successfully designed and realized. The design of such devices can be faced with the help of commercial codes based on finite methods like FEM [5], however, in a series of papers [6][7][8][9] the authors have shown alternative and more effective methods to analyze SIW structures. In particular the method based on the dyadic Green's function technique and the method of moments proved to be effective and accurate and it has been applied to the analysis of both non radiating [7] and radiating [8] structures and, recently, has been extended to lossy SIW devices [9].…”