Abstract
A radar system requires a number of high-power components operating in a narrow and convection-free environment. This study aims to develop an integrated heat dissipation system that is suitable for the high-power electronic equipment of radar systems. The proposed heat dissipation mechanism integrates a fluid circulation-type cold plate with a quad transmit receive module. The finite element method in the COMSOL fluid–solid coupling heat transfer analysis software was used to analyze the heat dissipation performance of the cold plate in the proposed mechanism. The Taguchi method was adopted to optimize the cold plate design. The simulation and experimental results show that the proposed mechanism can control the temperature equalization and temperature of the system within the specified requirements. The practicality of the proposed mechanism was verified. The findings can serve as a reference for the design of high-power electronic equipment in a heat dissipation system.
Highlights
After one hundred years of development, radar technology has undergone multiple evolutions and is achieving increasingly higher system performances
Active Electronic Scanning Arrays (AESA), as the performance requirements of national defense weapon systems continue to increase, meaning that their miniaturization and multifunctioning have become the basic performance items required by contemporary radar systems
The results showed that the optimum values of objective functions, such as the pressure drop, average temperature, and temperature uniformity, cannot be obtained at the same time, and that the temperature uniformity is most likely influenced by the working conditions, especially the inlet heat flux and the mass flow rate of the coolant
Summary
After one hundred years of development, radar technology has undergone multiple evolutions and is achieving increasingly higher system performances. Compared with the continuous innovations of stealth technology, radar technology has made new progress. Phase array radar may track targets within a radar cross-sectional area of less than 0.01 m2 and has been widely used in large ground-to-air defense radar and small airborne radar. Phase array radar is developing towards high-power. Active Electronic Scanning Arrays (AESA), as the performance requirements of national defense weapon systems continue to increase, meaning that their miniaturization and multifunctioning have become the basic performance items required by contemporary radar systems. With the increasing number of electronic components used in a radar system and the increasing demand for the operating power, a large number of high-power components must operate in a narrow, closed, and convection-free environment. Without a proper heat dissipation mechanism, the internal temperature of the system will rise sharply, which may damage the electronic components, affecting the reliability of the system
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