Stochastic Collocation based FEM Procedure for Terahertz Structures

Vinoy, KJ and Hemanth, G (2019) Stochastic Collocation based FEM Procedure for Terahertz Structures. In: 2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019, 9 March 2019through 15 March 2019, New Delhi.

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Abstract

Small deviations in realized dimensions of THz waveguides may lead to substantial changes in the performance. The geometrical dimensions are assumed to vary randomly with a normal distribution, to represent manufacturing tolerances. In this paper we propose an approach to compute the influence of selected geometric dimensions of a THz corrugated waveguide slow wave structure on its frequency response, phase velocity and the beam voltage. An affine parametric model of the elemental integral equations of the 3D finite element procedure using curl transformations has been used to model the random variations in geometric parameters. © 2019 URSI. All rights reserved.

Item Type:	Conference Paper
Publication:	2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Fits and tolerances; Frequency response; Geometry; Integral equations; Mathematical transformations; Normal distribution; Slow wave structures; Stochastic systems; Terahertz waves; Waveguides, 3-D finite elements; Corrugated waveguide; Geometric dimensions; Geometric tolerance; Geometrical dimensions; Manufacturing tolerances; Stochastic collocation; Tera Hertz, Finite element method
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	13 Dec 2022 04:24
Last Modified:	13 Dec 2022 04:24
URI:	https://eprints.iisc.ac.in/id/eprint/78308

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