Structure Design for a Compact X-Y Antenna Pedestal without Balance Weight

According to the practical applications of the ground tracking system for a low-altitude small satellite, the composition of a small-caliber antenna structure and its work principle are introduced in this paper. A compact X-Y antenna pedestal without balance weight is proposed. The structure characteristics of the X-Y antenna pedestal are described in detail. The pedestal overcomes the shortcomings such as loose structure, big mass, low reliability and so on of the same type of pedestals in the past and has the advantages of large movement scope, high tracking accuracy and good sealing performance. The relevant parameters of the transmission system are computed, especially the wind moment and eccentric moment. The results show that all the parameters have satisfied the design requirements. The structure characteristics and the computing method in this paper are of guiding significance to the design of X-Y antenna pedestal.