Thermal Design of Channelized Receiver & Signal Processor in Passive Radar Seeker

With the growing demands for wide-band data processing capacity, accuracy and faster real-time processing speed, Channelized Receiver & Signal Processor as the key components of Passive Radar Seeker, heat dissipating capability gradually becomes one of the main factors that limit its further developments. This paper describes the thermal design of Channelized Receiver & Signal Processor in passive radar seeker. Detailed discussions were made about the basic heat transfer theory, heat transfer paths design from chips level to equipment level. Finally, steady thermal analysis was carried out based on ICEPAK, the results indicate that the maximum temperature rise is less than 60□, and having 11.8□ margins when flying in cruise flight mode (flying altitude 1000m, speed 0.9 Mach), it meets the cooling requirements of this passive radar seeker system.