An electrically small, 3D printed folded spherical meander antenna

An electrically small, 3D printed folded spherical meander (FSM) monopole antenna is presented. It is observed from the simulated results that the designed antenna at the electrical size ka of 0.4 resonates at 750 MHz with the radiation efficiency of 96 %, while approaching the lower physical bound for a radiation quality factor. The frame of the designed antenna is built using a selective laser sintering method and is currently under process of painting with a silver paste. The measured antenna parameters will be reported at the conference.