标准摘要
[中文适用范围]： 描述了 21 mm 精密连接器的机械、电气和环境规格，其反射系数和衰减必须在高达 6 GHz 的频率下进行测量。 [外文原描述]： Describes the mechanical, electrical and environmental specifications of the 21 mm pecision connector, the reflection coefficient and attenuation of which have to be measured up to 6 GHz.
英文名称Rigid precision coaxial lines and their associated precision connectors - Part 4: 60 ohm 21 mm rigid precision coaxial line and associated hermaphroditic precision coaxial connector. Characteristic impedance 50 ohms (Type 9/21) - Characteristic impedance 75 ohms (Type 6/21)