Mechanical design and analysis of a cylinder antenna array

In order to make a large area survey, precisely measure a large scale space and detect dark energy, a large radio interference array with a large number of feeds is required. This paper presents a structure design of one cylinder parabolic antenna array. We establish the finite element model of cylinder antenna array of "Tianlai" plan, calculate and analyze the deformation of the antenna reflector under load of gravity, snow and wind. Simulation and analysis results show that the surface deformation of the antenna is small under various conditions;therefore, the structure is stable and reliable, which meets the design requirement.