Abstract
A wire antenna system has been installed on the 12th scientific satellite EXOS-D of the Institute of Space and Astronautical Science (ISAS) in Japan as one of 14 scientific payloads. This wire antenna system consists of four sets of the Wire Antenna Device (WAT), and each of WAT has a deployable wire of 30m with a small mass at its tip, which is wound in a reel before its deployment and is deployed with a constant speed after the satellite’s orbiting. Results of the numerical analysis made on the dynamical behavior of wires and the satellite during and after deployment of four WATs are briefly reported and compared with actual flight data obtained after EXOS-D’s successful launch on the 22nd of February, 1989.
