A Novel Antenna for GPS and Iridium Satellite Phone Applications in M2M Communication

The Archimedean spiral antenna is a popular type of selfcomplementary antenna. This study presents a two-arm Archimedean spiral antenna for GPS and Iridium applications. Circular symmetrical artificial magnetic conductor (AMC) is used as a ground plane in low-profile two-arm spiral antenna design. Proposed AMC structure enhanced the gain and axial ratio characteristics of traditional sipral antenna. Simulation results show good axial ratio, impedance match and stable gain for both operation bands.