US Patent 9490052 Tubular insulator for coaxial connector

An insulator for a coaxial connector is disclosed. The insulator is adapted to connect to a coaxial transmission medium to form an electrically conductive path between the transmission medium and the coaxial connector. The insulator is constructed of dielectric material. A laser-cut pattern in the insulator produces voids in the dielectric material such that air is incorporated into the insulator. The insulator has a composite tangent delta and a composite dielectric constant based on a combination of the dielectric material and the air and maintains dielectric properties to insulate and separate components of the coaxial connector.