DSN Antenna Array Architectures Based on Future NASA Mission Needs

A flexible method of parametric, full life-cycle cost analysis has been combined with data on NASA\´s future communication needs to estimate the required number and operational dates of new antennas for the Deep Space Network (DSN). The requirements were derived from a subset of missions in the Integrated Mission Set database of NASA\´s Space Communications Architecture Working Group. Assuming that no new antennas are "constructed", the simulation shows that the DSN is unlikely to meet more than 20% of mission requirements by 2030. Minimum full life-cycle costs result when antennas in the diameter range, 18 m-34 m, are constructed. Architectures using a mixture of antenna diameters produce a slightly lower full life-cycle cost.