A 3: 1 bandwidth planar, lossless cavity backed sinuous antenna for reflector feed applications. - Ngoy Mutonkole; Dirk I. L. de Villiers (AFRICON, 2013)

Exponential TEM horn with a convex triangular arc. - Karla Schoeman; Petrie Meyer; Dirk I. L. de Villiers (AFRICON, 2013)

Towards an optics design for the SKA. - I. P. Theron; Robert Lehmensiek; Dirk I. L. de Villiers (AFRICON, 2013)

Noise Temperature Approximations for Offset Gregorian Reflector Systems. - Robert Lehmensiek; Dirk I. L. de Villiers (IEICE Trans. Commun., 2018)

Effects of Diffraction and Feed Pattern Variation in Shaped Offset Gregorian Reflectors. - Dirk I. L. de Villiers; Robert Lehmensiek; Marianna V. Ivashina (IEICE Trans. Commun., 2018)