Recently, communication satellites have seen an increasing in lifetime with as the technology has developed. The need for communication satellites such as communication demand, communication area and their application has changed during the operation period. In order to meet the user demand for satellite communication, it is necessary to change the frequency allocation for each beam using a DC and to flexibly change the coverage using a DBF. The NICT has been developing the array feed reflector antenna using DBF/DC for the realization of high-gain, low side lobe, and high-accuracy beam control. A DC can use the resources appropriately to meet the requests of