Development of a Modified Yagi-Uda Antenna Operating in UHF for Communication Systems Embedded onto Nano-Satellites

This paper presents the results of simulations performed using the Ansys HFSS software for a sequentially rotated 2×2 antenna array model, whose basic element is a modified Yagi-Uda antenna operating at 436.5 MHz. The array will be integrated onto a 2U CubeSat, with progressive phase shift of 90° between the elements to achieve right-hand circular polarization (RHCP) as the main polarization. The results obtained from the simulations yielded overall better performance in comparison to other miniaturized antenna models found in the literature.