RF with axis connection device is important of electronic components, its widely using to life of aspects, big to aircraft, and car, and ship, small to computer, and Calculator, and phone,, technology of increasingly progress, for RF with axis connection device of need also in constantly increments, experience has 2008 years financial crisis Hou, connection device market from flagging gradually rebounded, 2010 connection device market more is hot exception, its development fast of reasons from Yu several aspects: China car industry of high-speed development, China's auto industry has entered a new stage in recent years, a day for cars purchase has exceeded the million unit mark, which breeds concern overseas dealers and the dealers, and invest more in China's automobile industry and construction; the rapid development of intelligent industry, Apple brought revolution not digestion, smart phones, computers, television and other competition gradually heated.