Improved Impedance Measuring Accuracy with Computer-Operated Transmission Measuring Sets

Computer-operated transmission measuring sets and network analyzers have been used to measure the impedance of components used in modern communications systems. The component is interfaced to the test set using a suitable coupling network for the impedance level and frequency range. Optimized or adaptive coupling networks may be employed to extend the range and accuracy of impedance measurements by an order of magnitude compared to a single fixed-topology coupling network.