Thermal control device and method of flexible film antenna for space

The invention discloses a thermal control device and method for a flexible thin film antenna for space. The thermal control device and method are mainly used for providing thermal control for large flexible antennas such as a phased array radar for space. The front surface of the antenna adopts a microwave-permeable sun screen with high infrared emissivity and low solar absorptivity, when the sun irradiates the back surface of the antenna, the high infrared emissivity of the antenna is utilized to quickly dissipate heat, and when the sun irradiates the front surface of the antenna, the low solar absorptivity of the antenna is utilized to prevent the antenna from absorbing excessive heat so as to prevent the temperature of the antenna from being too high; the back surface of the antenna adopts a heat insulation layer and a low-solar-absorptivity coating, the low-solar-absorptivity coating reflects most solar heat when the back surface is irradiated by the sun, and the heat insulation layer prevents the tempera