Configuration Design and Discrete Optimization of Large Rotatable Parabolic Cylindrical Antenna

In order to solve the problem of performance degradation of large rotatable parabolic cylinder antenna due to excessive weight, a new optimization design method is proposed in this paper, which can reduce the weight of antenna back frame by nearly 44% with the same performance. Firstly, the configuration theory is used to design the reflector reasonably, and the semi-rigid cable-truss is used to replace the traditional fully rigid truss in the initial configuration. Secondly, the improved one-dimensional discrete algorithm is introduced in the optimization. Based on the ANSYS APDL parameterization language, the optimal size of bars of the back frame is solved with the goal of lightweight. Finally, the effectiveness of the optimized structure is analyzed and verified under complex operating conditions. The design and optimization scheme can be extended to other large frame equipment.