N connector

Type N
Type N connector (male)
Type RF coaxial connector
Production history
Designer Paul Neill
Designed 1940s
General specifications
Diameter Male:      2.03 cm (0.80 in)
Female:  1.57 cm (0.62 in)
(outer, typical)
Cable Coaxial cable
Passband 0–11 GHz, often up to 18 GHz

The N connector (also, type-N connector) is a threaded, weatherproof, medium-size RF connector used to join coaxial cables. It was one of the first connectors capable of carrying microwave-frequency signals, and was invented in the 1940s by Paul Neill of Bell Labs, after whom the connector is named.