New potential of a direct printed LoRa antenna

In order to minimize the PCB (Printed Circuit Board) footprint of an IoT microtracker, we analyse the opportunity of deporting a LoRa antenna on the plastic case of the microtracker. This paper aims to compare an antenna conventionally manufactured on a PCB (FR4) and a printed antenna using jetting technology on a PC+ABS (Polycarbonate and Acrylonitrile Butadiene Styrene) polymeric substrate. The influence of the conductive ink, the antenna design and the substrate are underlined. Computational simulation is carried out. The LoRa antenna design is similar to the one used by [1].