Simulation and Optimization Research on Cold Plate Flow Channel of a certain Phased Array Radar T/R Modules

Abstract This article introduces the importance of optimizing the cold plate of phased array radar T/R modules to improve their heat dissipation performance. Based on the heat dissipation design input of a certain type of phased array T/R module, the design ideas of the cold plate are analyzed. In order to improve the heat dissipation performance of the cold plate and optimize the temperature uniformity of the power amplifier module, two heat transfer enhancement schemes, bending channel and flat channel, are adopted in the structural design of the module cold plate. After simulation calculations, the heat dissipation performance and flow resistance indicators of two schemes were obtained, showing that a straight channel has better heat dissipation and flow characteristics. After conducting heat dissipation performance tests on the flat and DC channel cold plates, the maximum temperature of the power amplifier module was 48 ° C, and the maximum temperature difference on the surface of each channel was 5.75 ° C, fully meeting the heat dissipation requirements.