• Beamforming techniques for a quad-mode antenna array 

      Van Tonder, Geomarr (Stellenbosch : Stellenbosch University, 2017-03)
      ENGLISH ABSTRACT: This thesis is based on a quad-mode antenna, designed by a group of researchers from the University of Stellenbosch. The antenna is designed using two co-located dipoles and a cylindrical monopole antenna ...
    • The design and implementation of microwave receiver front end components 

      Netshifhire, Vhudilangi Patrick (Stellenbosch : Stellenbosch University, 2005-12)
      ENGLISH ABSTRACT: Different types of RF and Microwave receiver systems architectures are investigated. The superheterodyne receiver characteristics are studied qualitatively. A three components system (LNA, Mixer and ...
    • The ribbon microphone multi‑physics educational aid 

      Van Wyk, Marius (Stellenbosch : Stellenbosch University, 2017-12)
      ENGLISH ABSTRACT: Engineering education has historically been mostly mathematics based, with advanced mathematics used to derive simple models for physics phenomena and then using these models to study basic behaviour. ...
    • Tunable lumped element notch filter for UHF communications systems 

      Benson, Peter-Luke (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT: The focus of this work is to solve for the electromagnetic problem of large linear antenna arrays efficiently and accurately within the context of two-dimensional (2D), transverse magnetic (TM) Method ...
    • Wide band, low-noise amplifiers for the mid-range SKA 

      Botes, Dewald Alewyn (Stellenbosch : Stellenbosch University, 2015-03)
      ENGLISH ABSTRACT: This thesis presents the design, construction and measurement of two wide-band LNA’s for the SKA-Mid range (350-1200 MHz). The first wide-band LNA involves the investigation of classic low noise amplifier ...