In view of the lack of annular focus antenna cases in the existing temperature field studies,the sunshine temperature field of a 12 m antenna during 9:00～16:00 is simulated in this paper.The temperature difference between the antenna components and the hour-by-hour temperature change trend of the main reflector and the back frame are ana-lyzed.The results show that the difference of heat received and thermal property parameters between antenna components will cause large temperature difference between components.The mutual occlusion between antenna structures will result in obvious temperature gradient inside the structure.The temperature difference inside the component is related to the unifor-mity of temperature distribution.
关键词
环焦天线/日照温度场/温度分布
Key words
annular focal antenna/sunshine temperature field/temperature distribution
维普
万方数据