High-Level Packaging Options for Outdoor Remote Units

Thermal performance of three high-level packaging options for natural convection and radiation cooled outdoor remote units was investigated in this work. Analytical correlations were used to determine required number and size of the fins. Then, a computational fluid dynamic simulation tool was used to investigate detailed thermal performance of three packaging options with the limitation that they use same fin and base areas. It was shown that all three designs perform almost the same if solar load is applied on the unit. However, the cube design performs worse than the narrow-deep and wide-slim designs if no solar load is applied.