What are RF connectors used for?

RF connectors are connectors used to make electrical connection for signal transmission in radio frequency applications.
These connectors are used in wide variety of applications ranging from 0 to 18 GHz and above.
 

All types of RF connector have one male connector and one female connector.

Male connectors are often called plug and female connectors as jack. In order to have a strong and reliable connection, the center pin and outer grounding are secured with locking mechanism.