Design and simulation of two elements array antenna for satellite communications

Abstract

The thesis proposes reconfigurable antenna designs with combined frequency and patternreconfigurable characteristics. The main focus is first to examine the exploitation of a singleelement antenna structure. An optimization procedure including a study of relevant designparameters is also presented. The structure has a controllable active component that allows theantenna to be tuned to different operating frequencies which is the Varactor diode. Next, thethesis focuses on the manipulation of near-resonant current distributions in a two-element array antenna based on the same operation principle, as well as the optimization of their feedingthrough T-junction power dividers. The core contribution for the two-element array and thesingle-element antenna is that they combine frequency-reconfigurability with effective beamscanning.