This thesis describes the development of antennas suitable for mobile coinmunication
systems based on a dielectric rod antenna fed from circular waveguide. Pattern
control of the antenna is implemented using a combination of Frequency Selective
Surface (FSS) elements and metallic endcaps placed on the antenna Both linear and
circular polarised feeds have been made for these antennas to ensure they are suitable
for a wide range of applications. The suitability of the dominant and next, higher
order, waveguide mode were investigated and conclusions drawn as to their suitability
for this type of antenna. The antennas were extensively modelled using a commercial
TLM based solver and the results of these simulations were compared to the
comprehensive set of antenna pattern measurements and S-parameter measurements
obtained for the prototype antennas.
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.