Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis on Heat Dissipation Characteristics of a Tile-Type Digital Transmitter/Receiver Module

적층형 디지털송수신모듈의 방열특성 분석

  • Yoon, Kichul (The 3rd Research and Development Institute, Agency for Defense Development) ;
  • Kim, Sangwoon (Mechanical Design Team, Hanwha Systems) ;
  • Heo, Jaehun (Mechanical Design Team, Hanwha Systems) ;
  • Kwak, Nojin (Mechanical Design Team, Hanwha Systems) ;
  • Kim, Chan Hong (The 3rd Research and Development Institute, Agency for Defense Development)
  • 윤기철 (국방과학연구소 제3기술연구본부) ;
  • 김상운 (한화시스템(주) 기계설계팀) ;
  • 허재훈 (한화시스템(주) 기계설계팀) ;
  • 곽노진 (한화시스템(주) 기계설계팀) ;
  • 김찬홍 (국방과학연구소 제3기술연구본부)
  • Received : 2018.10.30
  • Accepted : 2019.03.08
  • Published : 2019.04.05
Download PDF
⟨ Previous Next ⟩

Abstract

A Digital Transmitter/Receiver Module(DTRM), which is an essential part in active phased-array radar systems, generates a high heat density, and needs to be properly cooled for stable operation. A tile-type DTRM that is a stacking structure of multi-layer components was modeled with simplification and heat dissipation characteristics of the DTRM model were studied using computational fluid dynamics(CFD) simulations. Most of the heat was dissipated by the heat conduction through the cold plate, but the heat transfer by the forced convection on top of the DTRM also was found to play an important role in the thermal management. Under the given conjugated heat transfer environment, the DTRM was confirmed to secure a stable operating temperature range.

Keywords

GSGGBW_2019_v22n2_249_f0001.png 이미지

Fig. 1. The Computational Fluid Dynamics(CFD) simulation model. A) A DTRM on two cold plates, B) A cross section of DTRM

GSGGBW_2019_v22n2_249_f0002.png 이미지

Fig. 2. Components of DTRM in each layer. A) 1st layer, B) 2nd layer, C) 3rd layer, D) 4th layer

GSGGBW_2019_v22n2_249_f0003.png 이미지

Fig. 3. Temperature distributions inside/outside the DTRM under natural convection(NC, left) and forced convection(FC, right) conditions

GSGGBW_2019_v22n2_249_f0004.png 이미지

Fig. 4. Temperature distributions of the cold plates and A) 3rd layer & B) 4th layer of DTRM under natural convection(NC, left) and forced convection(FC, right) conditions

GSGGBW_2019_v22n2_249_f0005.png 이미지

Fig. 5. Maximum temperatures of the primary chips under natural convection(NC) and forced convection(FC) conditions

GSGGBW_2019_v22n2_249_f0006.png 이미지

Fig. 6. Heat removal rate of coolant/air under natural convection(NC) and forced convection(FC) conditions

GSGGBW_2019_v22n2_249_f0007.png 이미지

Fig. 7. Convergence results of FPGA average temperature with respect to A) the element number and B) iteration number

Table 1. Heat generation rate of the primary heat sources and the applied thermal pad thickness

GSGGBW_2019_v22n2_249_t0001.png 이미지

Table 2. Properties of the materials used in CFD simulations

GSGGBW_2019_v22n2_249_t0002.png 이미지

References

  1. M. I. Skolnik, "Introduction to Radar Sytems 3rd Edition," McGraw-Hill, New York, pp. 559-566, 2002.
  2. C. Jung, W. Lee, S. Kang, and K. Kim, "Analysis of Cooling Performance of AESA(Active Electronically Scanned Array) Radar Antenna System," Proceedings of the KSME 2011 Fall Annual Meeting, pp. 1673-1677, November, 2011.
  3. L. Wang, Z. Wang, C. Wang, G. Li, and L. Yin, "Multiobjective Optimization Method for Multichannel Microwave Components of Active Phased Array Antenna," Mathematical Problems in Engineering, Vol. 2016, 5398308, 2016.
  4. M. Parlak and M. Yaban, "Thermal Solution of High Flux Phased Radar Antenna for Military Application," ASME 2015 International Electronic Packaging Technical Conference and Exhibition, Vol. 2, IPACK2015-48055, 2015.
  5. E. Alpsan, "Experimental Investigation and Numerical Analysis of Microchannel Heatsinks for Phased Array Radar Cooling Applications," MSc Thesis, Mechanical Engineering Department, METU, Ankara, 2008.
  6. S. Rathod, K. Sreenivasulu, K. S. Beenamole, and K. P. Ray, “Evolutionary Trends in Transmit/Receive Module for Active Phased Array Radars,” Defense Science Journal, Vol. 68, No. 6, pp. 553-559, November 2018. https://doi.org/10.14429/dsj.68.12628
  7. Y. A. Cengel, "Heat Transfer: A Practical Approach 2nd Edition," Mcgraw-Hill, pp. 138-142, 2002.