In recent decades, countless small satellites have been launched in space with a trend that is expected to significantly scale up in the near future. The reasons that spurred their rapid growth in space industry are related to the compact dimensions, high versatility and flexibility and cost-effectiveness that characterize the miniaturized satellites, such as CubeSats. Nevertheless, ground-breaking propulsion systems must be designed to comply to the size and manufacturing costs of these space assets so as not to compromise the several benefits of small satellites. Among the different categories of thrusters, the cold gas system is one of the most suitable engines for CubeSat missions due to its simplicity and reliability, even if the straightforward operating principle entails low thrust and efficiency.