Shielding materials for reducing electromagnetic interference in UAV wiring systems.

The development of (Unmanned Aerial Vehicle) UAV application technology nowadays increasing rapidly and causing the level of system complexity in UAVs to be higher. Correspondingly, the structure of UAVs is also currently made lighter, with a higher level of flexibility, and stronger by using composites. However, the disadvantage of using composite materials is not as good as metals in terms of resistance to electromagnetic interference (EMI). In this research, measurements were made to determine the power induction received by cables due to exposure of electromagnetic radiation sourced from the antenna and to analyze the shielding material effect on reducing electromagnetic interference in cables. The transmit power of the antenna is varied from -20 to 19 dBm with an interval of incremental measurements every 5 dB. In addition, the direction of antenna polarization was variated to determine the influence of antenna position on the electromagnetic effect received by the cable. Furthermore, shielding-based carbon and kevlar material is given on the cable to determine the reducing effect of electromagnetic interference produced by the material. The result of the experiments obtained, by making the polarization direction of the antenna different from the cable, the value of the induction power received by the cable will be obtained smaller than the same polarization direction between the cable and the antenna, then by providing additional shielding box with carbon material, resulting induction attenuation of the power received by the cable is 20 dB smaller and 8 times better than the use of a shielding box made of Kevlar. [ABSTRACT FROM AUTHOR]