The Range Expanding in Impedance Measurements with Reduced Number of the Inner Standards

摘要

To measure the impedance parameters in the wide dynamic range we need always the great number of the standards. The precise standards, used for the accurate measurements are very expensive, have great sizes and weight. In addition, to change the inner standard value we have to use complicate and expensive switchers. Therefore, the appropriate devices have great cost and dimensions. In this report we describe the new approach, which permits to reduce twice the number of standards and switcher, used for the widening of the measurement range. This approach is based on the measurement of the reciprocal impedance parameters on the two adjoining subranges of measurement.