Design and Research on Miniaturized S-band Tile Type Active Phased-array Antenna System
Based on the requirements of space-based telemetry transmission of launch vehicle and the strict limitations of weight,space,and energy consumption on the vehicle platform,this paper designs a miniaturized,lightweight,highly integrated and low-power consumption S-band tile type active phased-array antenna system.The system includes antenna array module,T-module array module,power divider network module.beam controller and power unit module.The article elaborates on the working princi-ple and integrated architecture of the system,and designs several key circuits such as antenna array,T-module,highly reliable power supply unit and beam controller,etc,according to the requirements.The developed antenna system prototype has been tested in a darkroom,and its major indexes such as beam width,axial ratio,ERIP within the beam scanning range of±60°in the azimuth and el-evation plane all meet the design requirements.Compared with brick phased array antenna systems with similar functions in the same frequency band currently on the market,its volume is reduced by 45%,weight is reduced by 25%,and the energy consumption is reduced by 15%,which is more in line with the phased array antenna from the arrow-carrying size,weight,and economic applica-tion demand.It also provides guidance for the development of phased array antenna in related fields.
Active phased-array antennaTile type structureVertical interconnectionSIPFault unit localization
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