The choice of RF coaxial connectors must consider both performance requirements and economic factors. Performance must meet the requirements of the system electrical equipment. Economically, it must meet the value engineering requirements. In principle, the following four aspects should be considered in selecting connectors.

• Connector interface (SMA, SMB, BNC, etc.)

• Electrical performance, cable and cable attachment

• Termination form (PC board, cable, panel, etc.)

• Mechanical construction and plating (military, commercial)