Conjugate analysis of C and X band array assembly of ground radar
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X-band assembly with details |
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X band temperature distribution |
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Objective:
Phased array antennas that can be steered electronically are finding increasing applications in both radar and communication systems. Phased array radar systems offer many advantages over mechanically swept antennas, the most notable being their ability to select a given azimuth and elevation pointing angle without physically moving the antenna. This is probably the best way to track or search many targets widely separated in space. The Phase Control Module (PCM) forms the core element of the phased Array Radar and helps it in Electronic Scanning of an RF beam.
PCM’s generate heat and many of them in close proximity can increase the surface temperature of the radar surface. ‘Conjugate Fluid-Heat analyses’ needed to be carried out on C and X band array assembly’s to check the flow pattern and temperature distribution within the array housing.
Methodology:
The assembly’s were modeled with 3D hexahedral elements and modified iteratively to optimize the air flow pattern and temperature distribution between the PCM’s and radar surface. Natural air flow and force air flow from a fan were studied.
The defense department saved on time and expenses by simulating this analysis rather than physical testing.
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