A New Real-Time Six-Port A N A Method

A method for real-time six-port automatic network analyzer (ANA) measurements based on the use of a pre-calculated six-port chart is developed. It is shown that a swept frequency generator can be used to read the module and/or phase of the reflection coefficient (Gamma) an a computer screen at sweep rates of up to 75 Hz. The test band is determined by the six-port design, typically 9:1, the accuracy of measurement is dependent on the swept frequency interval and on the six-port circuit design.