According to the definition of the RF coaxial connector, it is a part of the transmission line, by which the components (cables) of the transmission system can be connected or disconnected. Unlike the power connector, the power connector is used for low frequency (generally 60). Hertz is an electrical signal, and the RF connector is used to transmit RF energy. It has a wide frequency range of up to 18*109 Hz/sec (18 GHz) or even high. Typical uses for RF connectors include advanced radar, vehicle and ship communications, data transmission systems, and aerospace equipment.

The basic structure of the coaxial connector consists of a central conductor (positive and negative center contacts); then, the outside is a dielectric material, or insulator, as if it were in a cable; the last is the outer contact. This outer part functions like the outer shield of the cable, ie the signal that is transmitted, the grounding element that acts as a shield or circuit.