The project was initially focused on the design, simulation and fabrication of 2.4 GHz ISM-band microstrip antennas under the supervision of AEA Technology. COMSOL Multiphysics and Agilent ADS were used to design and simulate those antennas. Later phase of the research was focused mainly on the RF propagation mechanisms and involved RF measurements for diverse sensor applications, such as gas turbine engines, train carriages, wind turbines, animal husbandry and indoor surfaces. Mathematical models were extracted by those measurements. Antennas and propagation models were implemented on network simulators (OMNeT++ and NS-2) to improve further simulation results.