The realization of complex impedance standard

This paper presents the realization of complex impedance standard, which achieve the calibration of digital bridge on entire complex plane through generating voltage and current waveform. The proposed standard can simulate any modulus and angle of complex impedance, which is focused on some technologies, such as digital waveform synthesis, all digital phase locked loop, DDS. Based on the concept of complex impedance and the calibration object, this paper achieves the design and realization of complex impedance standard. The measurement data at 1kHz is provided in the end, which can establish the foundation for calibration.