Wideband Electromagnetic Wave Propagation Modeling In Indoor Environments Using Ray Tracing Method

Please enable javascript in your browser.

This page was sent successfuly

Bookmark

1211 viewed

بررسی انتشار امواج الکترو مغناطیسی پهن باند در محیط داخل ساختمان با استفاده از روش رهگیری پرتو

1211 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 40918 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Shishegar, Amir Ahmad
Abstract:
Ray-tracing method is extensively used for wave propagation analysis of indoor and outdoor environment for narrowband systems. The main goal of this research is to extend ray-tracing method for site-specific modeling of wideband electromagnetic propagation. In this thesis, Time-domain reflection and transmission coefficients have been computed for dielectric half-space and dielectric slab with frequency dependent permittivity. First, analytical form of Fresnel reflection coefficient for vertical and parallel polarizations in time-domain have been computed for dispersive half-spaces with lossy, extended Debye, two-pole Debye and multi-pole Debye models. By using these time-domain coefficients, time-domain reflection and transmission coefficients have been computed for dispersive dielectric slabs too. A new method for convolution computation of time-domain signals has been proposed using the exponential expansion. Time-domain response of a dipole antenna is also computed and finally indoor propagation of electromagnetic wave is analysed.
Keywords:
Wideband Wave Propagation ; Time-Domain Ray-Tracing Method ; Analytical Inversion of Lapluce Transform ; Exponential Expansion ; Time-Domain Reflection ; Time-Domain Transmission

No TOC