L-Glass fibers from AGY are under evaluation for use in radomes because of their favorable dielectric properties. The low-loss glass fibers were developed to address the demands for higher speed/frequency signals in the cloud computing and telecom infrastructure. Signal transparency is a key material property to ensure that energy is transmitted/received with minimal loss. Radomes require materials that have high specific mechanical properties coupled with good dielectric characteristics. L-Glass fibers help achieve these increased signal speeds and better signal integrity than traditional E-Glass/epoxy substrate materials. The fibers have a significantly lower dielectric constant than E-Glass for improved data rates and a significantly lower dissipation factor than E-Glass for improved signal integrity.