Structure Design and Simulation Analysis of a Vehicle-borne Antenna

Aiming at high maneuverability requirements for a vehicle-borne active phased array radar, the design method of high integration and function modularization of the antenna is adopted. The stainless steel cooling pipe network is replaced by the function & structure integrated cooling panel and the direct-insert structure of cable assembly is replaced by the blindly interconnected feeder composite layer. Compared to the traditional antenna array，its thickness is reduced by half and the weight by 40%. A new type of antenna framework is adopted to assemble the internal and external frames. The external frame of the antenna skeleton is welded by the box beam to ensure the structural strength. The internal frame adopts the high precision design method that the horizontal beam, vertical beam and antenna panel are positioned step by step to ensure the reliability of blind interconnection among equipment on the antenna array. It provides a new idea for high integration design of the antenna. The finite element model of the antenna framework structure is also established in this paper to carry out the static analysis and vibration and impact analysis. The stress distribution graph and deforming graph under different work conditions are obtained. The results indicate that the strength and stiffness of the structure can meet the design requirement.