The multi-channel connector can transmit multi-channel microwave signals with relatively small structure size. The connector can realize the connection of multi–channel signals through one connection. It has characteristics of strong impact resistance, high reliability, good environmental resistance and excellent mechanical and electrical performance. 2-core and 3-core components are mainly used for military microwave communication, 4-core and 5-core components are mainly used for base stations. L33 is a patented product of our company, and its structure is optimized on the basis of L32 with the characteristics of high intermodulation.