Analytical method for single and coupled nonuniform guiding structures

Alijani, Mohammad G. H.; Sheikh, Shahin; Kishk, Ahmed A.

doi:10.1016/j.aeue.2023.154590

Cited by 1 publication

(1 citation statement)

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“…It should be noted that the data sets for training procedure are produced using the introduced method in 19 . The obtained results of the under-studying coupled line including reflection coefficient and transmission coefficient uncertain area (a gray area) and measured ones (dashed blue line) 18 are plotted in Figs.…”

Section: Application Test Casementioning

confidence: 99%

Crosstalk tolerance analysis of coupled-line structures using least square-support vector machine technique

Alijani,

Neshati

2023

Sci Rep

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In this paper, crosstalk sensitivity analysis of a microwave coupled-line structure due to the fabrication imperfections is investigated using Least Square-Support Vector Machine (LS-SVM) method. Since LS-SVM uses a set of linear equations instead of a convex quadratic programming problem, the computational cost is extremely reduced compared to that of the well-known Monte Carlo (MC) analysis or even Support Vector Machine (SVM) without decreasing the accuracy. Using this method, the geometrical parameters of the coupled-line are assumed to be randomly distributed using the Latin Hypercube function and the variation range of each parameter is set to ± 50% around its central value. The frequency response of the coupled-line is estimated and compared with those of the measured and simulation ones for a few well-known practical case studies. The results show that the LS-SVM procedure quickly predicts the worst-case crosstalk expectation values and accurately anticipates the probability of obtaining various outcomes of the coupled-line for the specified parameter variation over a wide frequency range.

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Section: Application Test Casementioning

confidence: 99%