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Propagation Environment Modeling Using Scattered Field Chamber

Fulltext:


Authors:

Magnus Otterskog

Research group:

Biomedical Engineering

Publication Type:

Doctoral Thesis

Publisher:

Örebro University

Abstract

This thesis covers the development of the Reverberation Chamber as a measurement tool for cell phone tests in electronic production. It also covers the development of the Scattered Field Chamber as a measurement tool for simulations of real propagation environments. The first part is a more ”general knowledge about Reverberation Chambers”-part that covers some important phenomena like unstirred power and position dependence that might occour in a small Reverberation Chamber used for cell phone tests. Knowing how to deal with these phenomenas, give the possibility to use the chamber as a measurement tool for production tests even though it is too complex for a simple test of the antenna function. The second part shows how to alter some important propagation parameters inside the chamber to fit some real world propagation environments. The 3D plane wave distribution, the polarization and the amplitude statistics of the plane waves are all altered with simple techniques that are implementable all together. A small, shielded anechoic box with apertures is used to control 3D plane wave distribution and polarization. Antennas that introduce unstirred power in the chamber are used to control the statistics.

Bibtex

@phdthesis{Otterskog1199,
author = {Magnus Otterskog},
title = {Propagation Environment Modeling Using Scattered Field Chamber},
month = {November},
year = {2006},
school = {{\"O}rebro University},
url = {http://www.es.mdu.se/publications/1199-}
}