Now showing items 1-4 of 4

    • Application of an extended Huygens' principle to scattering discontinuities in waveguide 

      Geschke, R. H. (Riana Helena) (Stellenbosch : Stellenbosch University, 2004-04)
      ENGLISH ABSTRACT: The implementation and verification of a recently proposed Huy gens' principle in hollow lossless waveguide is described. The extended Huygens' principle is applicable to the scattering effect of ...

    • Design and optimization of gap waveguides components through space mapping 

      Sibanda, Clifford (Stellenbosch : Stellenbosch University, 2018-03)
      ENGLISH ABSTRACT: This thesis presents a detailed approach and method to design and optimise ridge and groove gap waveguide components using input space mapping. Gap waveguides are expected to contribute significantly ...

    • hp-Adaptation for the FEM Analysis of Waveguides 

      Lezar, Evan (Stellenbosch : Stellenbosch University, 2008-03)
      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 ...

    • Investigation and design of a slotted waveguide antenna with low 3D sidelobes 

      Maritz, Andries Johannes Nicolaas (Stellenbosch : University of Stellenbosch, 2010-03)
      ENGLISH ABSTRACT: An investigation into the cause of undesired sidelobes in the 3D radiation pattern of slotted waveguide arrays is conducted. It is hypothesized that the cross-polarization of the antenna is at fault, ...