A low-profile and high-gain L-band log periodic dipole antenna system for future Moroccan CubeSat projects is proposed in this research work. The goal of this work is to create a downsized log periodic dipole antenna with good stiffness, lightweight construction, and low power consumption for CubeSat flights in the L-band (1.775 GHz). The LPDA system is powered via a 50 Ω coplanar waveguide strip line placed on the aluminum box of the 1.5U CubeSat design. The L-band frequency spectrum (1–2 GHz) for satellite communications is highly valued in the maritime industry due to the fact that it can overcome rain, fog, and storm conditions. The complete LPDA configuration is optimized using the Quasi Newtonian Method, resulting in a peak gain of around 9.0 dBi at 1.775 GHz and an ultra-broad impedance bandwidth ranging from 1544 to 2683 MHz, incorporating a wide variety of L-band and S-band satellite frequencies. In addition, the designed antenna configuration has a significant return loss while using less than 1.66% of the 1.5U CubeSat volume. The optimized design of the suggested LPDA occupies a compact size of 1.7 λ0 × 1.7 λ0, is lightweight and low-cost, and delivers a high-strength antenna configuration for outer space operation. These accomplishments allow future Moroccan CubeSat projects such as next MaSat-1 editions to target high-altitude satellite missions with small-sized AeroCubes at a low cost and low power consumption for an indefinite period of operation.