Open AccessRetrieval of electrical and physical properties of dielectric samples using time‐domain multiple reflection method
Author(s) -
Singh Vineet,
Bhattacharyya Somak
Publication year - 2020
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2019.0203
Subject(s) - reflection coefficient , reflection (computer programming) , permittivity , dissipation factor , dielectric , time domain , sample (material) , materials science , tangent , dielectric permittivity , computer science , iterative method , electronic engineering , ground penetrating radar , scheme (mathematics) , radar , algorithm , optics , mathematics , optoelectronics , engineering , computer vision , mathematical analysis , geometry , physics , telecommunications , thermodynamics , programming language
In this study, a novel time‐domain multiple reflection method for determining the electrical properties and thickness of the sample has been proposed. The unique advantage of this method is that it employs only reflection coefficient data for the reconstruction of the properties. The proposed scheme is validated by determining the permittivity, thickness, and loss tangent values of different samples of different thicknesses with high accuracy. The experimental characterisation has been carried out, incorporating the proposed scheme for its verification and thereby the electrical and physical properties of an unknown sample have been retrieved. The proposed method is simple, cost‐effective and non‐iterative in nature. The proposed technique is quite useful in applications like through‐wall imaging, where the wall can be accessed from a single side only, monitoring the health of the building and ground‐penetrating radar.