Active phased-array relay antenna temperature control device

Abstract

The invention provides an active phased-array relay antenna temperature control device, and relates to the technical field of spacecraft thermal control. The device comprises an equipment group, an antenna waveguide, a heat pipe and a heat dissipation plate, the heat dissipation plate is installed on the reverse side of the antenna waveguide and forms an accommodating space, and the equipment group is installed on the reverse side of the antenna waveguide and is arranged in the accommodating space. An accommodating cavity is formed in the reverse side of the antenna waveguide, the heat pipe isinstalled in the accommodating cavity, and white paint is sprayed to the front side and the reverse side of the antenna waveguide. Through spraying the white paint on the front side of the active phased-array relay antenna waveguide, adding the heat dissipation plate on the nightside, arranging the heat pipe in the concave cavity and other measures, the on-orbit temperature control problem of theactive phased-array relay antenna is solved, the heat dissipation efficiency is greatly improved, the temperature control problem of the antenna is effectively solved, the temperature requirements under different external heat flow conditions can be met, the process is simple, implementation is easy, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of spacecraft thermal control, in particular to an active phased array relay antenna temperature control device. Background technique [0002] The active phased array relay antenna is a new type of relay antenna, which is characterized by the device cluster installed on a small area of ​​the antenna waveguide surface, which generates a lot of heat during operation, and due to the limitation of the satellite space structure, often Installed on the surface directly irradiated by sunlight, if effective thermal control measures are not taken, the temperature of the device will rise sharply during operation, which will lead to direct failure of the device. [0003] For the relay antenna, the conventional thermal control design method is to set a sufficient heat dissipation surface in the area of ​​the equipment installation surface according to the heat dissipation requirements of the equipment, and at the same t...

AI Technical Summary

Problems solved by technology

This method has simple thermal control measures, but has high absorption rate and low emissivity, limited heat dissipation capacity, and poor adaptability to external heat flow and space environment.

[0005] Patent document CN109511253A discloses a heat dissipation and temperature control technology for active phased array radar components, but the equipment required for the temperature control measures adopted in this design is heavy and costly, which affects the overall structural layout and has great limitations

Images