Now showing items 1-3 of 3

  • 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 ...
  • 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, ...