Analysis on mismatch loss caused by poor contact of BNC connector components

As a main coaxial cable connector, BNC connector, internal connections of which often take the form of a clamping structure, is widely used in communication industry. Due to different manufactures´ different production processes and standards, inadequate compaction or out-of-tolerance component size in BNC connector production may cause poor contact, which may lead to mismatch loss of coaxial cable and influence the quality of signal transmission. Based on an actual BNC connector fault in satellite communication, this paper analyzes mismatch loss caused by poor contact of BNC connector components. Quantitative analysis is given on the cause and sizes of mismatch loss, which provides reference for coaxial cable production and troubleshooting.