Measurement Setup for Impedance Tuning Unit Characterization
Peter Sjöblom, Henrik Sjöland · Lund University Publications (Lund University) · 2007
An Impedance Tuning Unit (ITU) has the ability to tune the impedance of for instance the antenna to better match another impedance. To effectively characterize a circuit containing an ITU, several functions in a measurement system need to be remotely controlled. In this paper such a measurement system is described. A line tune screw creates impedances for the ITU to match and a digital acquisition hardware (DAQ) controls the ITU. A LabVIEW interface is used to controll the DAQ and a network analyzer for measurements, as well as to collect, calculate and store data.