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前言在高频尤其是在微波测量时,往往需要各种不同类型的同轴接头进行连接或转换。同轴传输线不仅仅要有连接头,同时各国的仪器型号不同,其输入、输出接头的形式差异很大,常常需要进行接头间的转换。常见的有N型——平接头(又称无极性接头)、N型——SMA接头、N型——西德接头以及N型——TNC接头等等。同轴接头性能的优劣对微波同轴元件有直接影响。为了保证连接可靠,提高测试精度,设计好同轴接头是十分必要的。对于同轴接头的要求主要是引入的附加反射越小越好,即特性阻抗应尽量
Foreword At high frequencies, especially when measuring microwaves, different types of coaxial connectors are often required to connect or switch. Coaxial transmission line not only have connectors, while different countries, different types of instruments, the input and output connectors in the form of very different, often need to be converted between the joints. Common N-type - flat connector (also known as non-polar connector), N-type - SMA connector, N - West connector and N - TN connector and so on. Coaxial connector performance advantages and disadvantages of microwave coaxial components have a direct impact. In order to ensure reliable connection and improve test accuracy, it is necessary to design a coaxial connector. The requirements for the coaxial connector is mainly the introduction of additional reflection as small as possible, that is, the characteristic impedance should be as much as possible