A novel single-DoF deployable antenna mechanism based on heterogeneous modules: Configuration design and performance analysis

The truss-type deployable antenna is the core equipment for information acquisition and transmission in aerospace engineering. As an important implementation method for large-aperture and high-precision space deployable antennas, the truss-type deployable antenna mechanism has advantages in surface accuracy, deployable ratio, and brace stiffness. However, existing parabolic deployable antennas based on isomorphic modules have shortcomings such as insufficient surface accuracy, complex actuation, and low deployable ratio. We propose a parabolic deployable antenna mechanism with single-DoF and deployable ratio, which combines research content such as parabolic reflector surface division, configuration synthesis, performance analysis and experimental verification of the deployable antenna mechanism. The research results indicate that the proposed mechanism has the characteristics of high surface accuracy, high deployable ratio, and single actuation. The research work provides a solid theoretical foundation and technical reserves for the application and research and development of high-precision and ultra large parabolic truss-type deployable antenna mechanisms.