$GTCH A comprehensive design was developed to determine the thermal conditions for the radio transceivers within the mobile, base and repeater units. Experimental techniques and numerical simulations were used to study the various thermal paths to develop the optimal cooling airflow. The power and thermal management of the Infinia system are directly correlated to yield an optimal solution. A concurrent plant including topology, size and control optimization will be apply to both power and thermal domains to ensure reliability and high performance. An optimized thermal system is crucial especially if the system is targeted to be used for emergency and military applications worldwide.