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Faculty of Engineering
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Department of Electrical and Electronic Engineering
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Doctoral Degrees (Electrical and Electronic Engineering)

Doctoral Degrees (Electrical and Electronic Engineering)

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Recent Submissions

Design of the dual-shaped triple layer pillbox antenna

Baard, Charl Wynand (Stellenbosch : Stellenbosch University, 2013-03)

ENGLISH ABSTRACT: The triple layer pillbox antenna is an antenna topology well suited for use as a stackable "plank" element in radar applications. Its suitability arises from the folding which makes it compact, and from ...
A state management and persistency architecture for peer-to-peer massively multi-user virtual environments

Gilmore, John Sebastian (Stellenbosch : Stellenbosch University, 2013-03)

ENGLISH ABSTRACT: Recently, there has been significant research focus on Peer-to-Peer (P2P) Massively Multi-user Virtual Environments (MMVEs). A number of architectures have been presented in the literature to implement ...
The method of manufactured solutions for the verification of computational electromagnetic codes

Marchand, Renier Gustav (Stellenbosch : Stellenbosch University, 2013-03)

ENGLISH ABSTRACT: In this work the Method of Manufactured Solutions (MMS) is introduced for the code veri cation of full-wave frequency dependent electromagnetic computational software. At rst the method is sketched ...
Development of a novel air-cored permanent magnet linear generator for direct drive ocean wave energy converters

Vermaak, Rieghard (Stellenbosch : Stellenbosch University, 2013-03)

ENGLISH ABSTRACT: In hierdie tesis word ’n nuwe lug kern permanent magnet (PM) lineêre generator (LG) vir toepassing tot direk aangedrewe (DA) oseaan golf energie omsetters (GEO) ontwikkel. Die nuwe LG word ontwikkel vanaf ...
An experimental study of artificial isotropic chiral media at microwave frequencies

Smith, Anthonie Gronum (Stellenbosch : Stellenbosch University, 1994-12)

ENGLISH ABSTRACT: An artificial chiral medium can be made by embedding metal helices (chiral or handed structures) with random orientation inside au achiral hnst medium. The electromagnetic behaviour of such artificial ...
A computational architecture for real-time systems

Mostert, Sias (Stellenbosch : Stellenbosch University, 2000-12)

ENGLISH ABSTRACT: The engineering of dependable real-time systems for mission critical applications is a resource intensive and error prone process. Achieving dependability requires a general consensus on the correctness ...
Empirical state space modelling with application in online diagnosis of multivariate non-linear dynamic systems

Barnard, Jakobus Petrus (Stellenbosch : Stellenbosch University, 1999-12)

ENGLISH ABSTRACT: System identification has been sufficiently formalized for linear systems, but not for empirical identification of non-linear, multivariate dynamic systems. Therefore this dissertation formalizes and ...
Analysis and synthesis algorithms for the electric screen Jauman electromagnetic wave absorber

Du Toit, Leendert Johannes (Stellenbosch : Stellenbosch University, 1993-11)

ENGLISH ABSTRACT: An extensive literature study revealed numerous Jauman absorber examples with reasonable absorption properties. Unfortunately, tractable and detailed design techniques were found to be scarce, and often ...
Analysis of a radial flux-air-cored permanent magnet machine with a double-sided rotor and non overlapping windings

Randewijk, Peter-Jan (Stellenbosch : Stellenbosch University, 2012-03)

ENGLISH ABSTRACT: In this dissertation a new type of electrical machine, a Radial Flux Air-Cored Permanent Magnet machine with a Double-sided Rotor and utilising concentrated, non-overlapping windings, is proposed. The ...
Power-line sparking noise characterisation in the SKA environment

Langat, Philip Kibet (Stellenbosch : Stellenbosch University, 2011-12)

ENGLISH ABSTRACT: The Square Kilometre Array (SKA) and its demonstrator MeerKAT are being designed to operate over a wide frequency range and are expected to achieve greater sensitivity and resolution than existing telescopes. ...
Natural balancing of multicell converters

Wilkinson, Richardt Howard (Stellenbosch : University of Stellenbosch, 2004-04)

ENGLISH ABSTRACT: Multilevel converters were developed as a result of a growing need for higher power converters. This dissertation addresses a specific multilevel topology called the multicell topology. A problem associated ...
A tool kit for the design of superconducting programmable gate arrays

Fourie, Coenrad Johann (Stellenbosch : University of Stellenbosch, 2004-12)

ENGLISH ABSTRACT: The development of a tool kit for the design of superconducting programmable gate arrays (SPGAs) is discussed. A circuit optimizer using genetic algorithms is developed and evaluated. Techniques and a ...
The Development of a Composite Transmission Electrical Network Utilisation Comparative Study Index

Auditore, Frank Anthony (2004-12)

ENGLISH ABSTRACT:The aim of the proposed study was to develop an electrical utility organisational performance measure indicator that measures electrical network utilisation (U) for the actual maximum demand and total ...
Efficient adaptive sampling applied to multivariate, multiple output rational interpolation models, with applications in electromagnetics-based device modelling

Lehmensiek, Robert (Stellenbosch : Stellenbosch University, 2001-12)

ENGLISH ABSTRACT: A robust and efficient adaptive sampling algorithm for multivariate, multiple output rational interpolation models, based on convergents of Thiele-type branched continued fractions, is presented. A ...
Modelling, estimation and compensation of imbalances in quadrature transceivers

De Witt, Josias Jacobus (Stellenbosch : University of Stellenbosch, 2011-03)

ENGLISH ABSTRACT: The use of the quadrature mixing topology has been severely limited in the past due to its sensitivity towards mismatches between its signal paths. In recent years, researchers have suggested that digital ...

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