Shape-memory alloys in reconfigurable antennas

Shape-memory alloys have the potential to provide a large range of reconfigurability within mechanically reconfigurable antenna designs. This paper presents a study on the use of Shape-memory alloys in providing reconfigurability in antennas. First an assessment of the suitability of Shape-memory alloys for use within antenna design was conducted. Secondly a proof of concept reconfigurable square loop antenna prototype is implemented using Shape-memory alloys as the radiating element. Shape-memory alloys are used to adjust the loop circumference and therefore the antenna´s resonant frequency. Simulation and measurements confirm that the antenna is reconfigurable, although the desired reconfigurability was not achieved.