A New Transparent Planar Reflector Antennas for Satellite DTV Applications This paper presents the new thick film coating technology for transparent conducting film (TCF). The coated thin film is having the microwave characteristic of high transparency and low resistivity. Design of traditional dipole antenna consisted of iron wire, which can be manufactured via the simple bending process as that for the reflector antennas. On the surface is designed, the planar reflecting layer of using our invented activation process is used to rearrange the direction of liquid nanomaterial the thin film from disorder to ordered arrangements. The optical transmittance of reflector layer can be achieved in 82%. The overall dimension size of the is 210xc3x97290 mm2, The transparent reflective layer is prototyped can apply on the Kuband for the satellite DTV.

Controller Design of Deployment Process for Large Deployable Reflectors Large deployable reflectors are the key technical equipment to meet the needs of geostationary mobile communication in high rail and earth observation. After being sent to the working track by the spacecraft, the space antenna is driven by a reliable and stable controller to provide a frame for forming a highprecision metal reflecting surface. This paper aims to study the optimal deployment process control strategy and method based on the deployable trajectory for a large deployable antenna. In this paper, the Backstepping controller and fuzzy PID controller are designed respectively based on the model and nonmodel perspectives. The feasibility of the controller is verified by simulation, and the advantages and applications of the controller are illustrated by comparison. The article lays a good foundation for the technical improvement of the antenna system.