COAXIAL CONNECTOR

A coaxial connector includes a center contact and an outer contact. The outer contact has a central cavity and the center contact is disposed in the central cavity. The outer contact has a mating end configured to be mated to a mating connector and a terminating end configured to be mounted to a circuit board. A circuit board mount is coupled to the terminating end and is configured to mechanically and electrically connect the outer contact to the circuit board. A dielectric insert is received in the central cavity and holds the center contact. The dielectric insert has structural features extending axially along an exterior of the dielectric insert with air gaps therebetween. The structural features engage the outer contact to secure the dielectric insert in the central cavity.