The active antenna or active electronic scanning antenna is in fact a set of several (typically 1000 to 1,500) sub-antennas independent of each other and each having their own source. The advantage of this approach is to be able to operate the system after reconfiguration even if one of the sub-antennas is defective. Active antenna networks are commonly used in professional military and civilian applications (radars, missiles, etc.). And, they begin to appear in telecommunications systems with 5G and communication elements in aircraft (In Flight Connectivity). The increasing miniaturisation of the components and the increase in the power of these antennas implies an essential thermal dissipation management. However, it is necessary to use low-volume technologies to support this trend of miniaturisation.DiThAA therefore involves exploring two thermal dissipation solutions to assess their efficiency and congestion at iso-performance and reliability.