This study investigates high frequency probes through good metrology and computation software such as CST. A factor that can strongly influence the accuracy of measurements, is common mode (CM) current. Therefore, the ...

An existing antenna used in satellite communications is investigated with the goal of improving low angle radiation performance and reducing manufacturing costs. To understand this antenna it is modelled, simulated and ...

The nite element method (FEM) is a powerful tool for the computational analysis of a wide range of electromagnetic problems. As the complexity of the problems is increased so are the demands in terms of the computational ...

Particle accelerators today have numerous magnets that require controlling. These include magnets for analysing, beam-path selection, focusing, etc. Also, design specifications are becoming tighter. A typical modern ...

This thesis discusses the design, development and measured results of a phase-locked loop based frequency synthesiser for X-band Doppler radar. The objective is to obtain phase noise comparable or lower than that typically ...

A Cryogenic CMOS-based Control System for Testing Superconductor Electronics P.C. van Niekerk Department of Electrical and Electronic Engineering University of Stellenbosch Private Bag X1, 7602 Matieland, South ...

Conventional immunity tests are both time consuming and costly. There is thus a reasonable interest in relatively quick, but accurate and cost effective, in-house pre-compliance test techniques within an engineering d ...

This thesis details the development of linear control systems that allow a vertical take-off and landing unmanned aerial vehicle to perform transitions between vertical and horizontal flight. Two mathematical models are ...

Modern technology is reducing the cost of electronic devices. The speed of these devices and their reliability is improving. They can be used to implement low cost systems without compromising performance. The design ...

A communications protocol is designed for real time control and data handling for a Nanosatellite application. The communication protocol is based on the Controller Area Network (CAN) technology. The protocol handles ...