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六端口技术是七十年代出现的一种微波测量新技术.十年来,许多国家相继开展了这方面的研究工作,研制出一批以六端口技术为基础的测试设备,工作频率从10兆赫到65千兆赫以上,有些设备的工作频带可从2千兆赫到18千兆赫.美国国家标准局(NBS)研制成的双六端口自动网络分析仪在3千兆赫频率上
Six-port technology is a new technology of microwave measurement in the seventies. Over the past decade, many countries have carried out research work in this area and developed a batch of testing equipment based on six-port technology. The operating frequency ranges from 10 MHz to 65 gigahertz or higher, and some devices operating from 2 gigahertz to 18 gigahertz. The dual six-port automatic network analyzer developed by the National Bureau of Standards (NBS) operates at 3 gigahertz