Electronic markers for geological research

Tag Design

Bachelor thesis (2019)

Authors

M. Kraaijeveld Electrical Engineering, Mathematics and Computer Science
D.A.E. de Gruijl Electrical Engineering, Mathematics and Computer Science
M.A. Postma Electrical Engineering, Mathematics and Computer Science
A.S. Roos Electrical Engineering, Mathematics and Computer Science
D. de Groot Electrical Engineering, Mathematics and Computer Science
E.R. van der Meijs Electrical Engineering, Mathematics and Computer Science

Contributors

G. de Graaf Electronic Instrumentation - EEMCS (mentor)
A.J. van der Veen Signal Processing Systems - EEMCS (graduation committee member)
A. Endo Tera-Hertz Sensing - EEMCS (graduation committee member)
Faculty
Electrical Engineering, Mathematics and Computer Science, Electrical Engineering, Mathematics and Computer Science
Copyright: © 2019 Michael Kraaijeveld, David de Gruijl, Marco Postma, Stefano Roos, Daan de Groot, Emiel van der Meijs
More Info
expand_more

Published Date

04-07-2019

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

In this thesis, the implementation of a passive, chipless, frequency coded Radio-Frequency Identification (RFID) tag for bedload transport studies is proposed. The proposed tag will be deployed in the semi-arid Río Colorado river, Bolivia with the aim to develop quantitative sediment transport models that relate transport to grain size. The designed tag is an open-loop resonator with a fragment-loading structure, that has an op- timised configuration based on a Multiobjective Evolutionary Algorithm based on Decomposition combined with Enhanced Genetic Operators (MOEA/D-GO). The designed RFID tag can ideally reach a size of 4 by 4 millimetres with a maximum calculated reading range of 1.3 meters, and operates in the ultra wide band from 3 to 7 gigahertz. Numerous simulations on the tags were run to verify their properties. The tags proved to have a good directivity, quality factor and radio cross section on its resonant frequency. The tags could reach resonance frequencies as low as 2.9 gigahertz and quality factors as high as 130. The proof of concept on a Printed Circuit Board with an FR-4 substrate results in a tag of 6.4 by 3.4 millimetres. Unfortunately, these properties could not yet be verified by measuremen