Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (6): 1782-1788.doi: 10.12305/j.issn.1001-506X.2022.06.03

• Electronic Technology • Previous Articles     Next Articles

Optimization design and performance research on microchannel liquid cooling of phased array antenna

Juan LIU, Quanyong SU*, Zheng SHI, Xianmou XUE   

  1. Beijing Institute of Remote Sensing Equipment, Beijing 100854, China
  • Received:2021-06-17 Online:2022-05-30 Published:2022-05-30
  • Contact: Quanyong SU

Abstract:

Liquid cooling becomes the first choice for heat dissipation of high power phased array antenna because of its higher stability and efficiency than other ways like air cooling or energy-storage by phase change. Different from previous unit-based thermal control methods, this paper provides a new thermal control design idea for phased array antenna by two kinds of optimized structure, i.e., straight channel with variable section or dual spiral channel, to solve critical problems like cooling unevenness, great temperature difference between transmitting/receiving (T/R) elements occurred in phased array antenna with constant cross section and straight microchannel. Simulation and test result show that dual spiral channel enjoys the best cooling effect. Maximal chip temperature decreases by 35.6% and the temperature difference between T/R decreases by 51.8%. Besides, influence of fluid speed on cooling effect is given with its quantized curve. Thus critical problems of phased array antenna thermal control can be settled with strong feasibility and practicability.

Key words: phased array antenna, thermal control, liquid cooling, microchannel

CLC Number: 

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