An Integrated Scattering- and Noise Parameter Measurement System

By addition of noise measuring equipment to an existing semi-automatic Network Analyser System, Scattering and Noise Parameters of linear two-ports can now accurately be measured in a relative easy and fast way, over a frequency band from 1,8 - 18 GHz. To reach this goal an HP9845B desktop computer is used to guide the operator, control the equipment, gather and correct the data and present the results. Essential for the broadband noise parameter measurements is a computer controlled, stepper-motor driven, coaxial slide screw-tuner. A block-diagram of the whole system, that is placed in a temperature stabilized room (22 ± l°C), is given in fig. 4.