A reflector antenna system comprising: a hoop assembly configured to expand between a collapsed configuration and an expanded configuration; a mesh reflector secured to the hoop assembly such that when the hoop assembly is in the collapsed configuration the mesh reflector is collapsed within the hoop assembly and when the hoop assembly is in the expanded configuration the mesh reflector is expanded to a shape that is intended to concentrate RF energy in a desired pattern; a mast assembly including an extendible boom to which the hoop assembly is secured by cords; and an antenna feed that is located on a vehicle so as to face a concave surface of the mesh reflector that is intended to concentrate RF energy in the desired pattern.