CHARACTERISTICS OF SCALE MODELS OF LARGE DEPLOYABLE MESH REFLECTOR ANTENNAS FOR MOBILE COMMUNICATIONS SATELLITES

In the land mobile satellite system (LMSS) using a geostationary platf orm (GPF), a 30 m diameter satellite antenna is desirable for small po rtable terminal communications. SCR has adopted two deployment types o f antenna structure, the Hexa-Link Truss reflector and the Tetra-Triag onal Prism Truss (TETRUS) reflector, and has developed scale models of them. Both of them represent important aspects of large satellite ant enna technology. This paper describes the SCR outline of a land mobile satellite communications system and the experimental results of the s cale models. This research establishes the basic technical information necessary for the development of a 30 m diameter antenna and a concep tual GPF design.