An Augmented Three-Antenna Probe Calibration Technique for Measuring Probe Insertion Phase

Authors: Aksel Frandsen, Doren W. Hess, Sergey Pivnenko, and Olav Breinbjerg

Probe calibration is a prerequisite for performing high accuracy near-field antenna measurements. One convenient technique that has been used with confidence for years consists of using two auxiliary antennas in conjunction with the probe-to-be-calibrated. Inherent to this technique is a calibration of all three antennas. So far the technique has mostly been applied to calibrate for polarization and gain characteristics. It is demonstrated how the technique can be extended to also measure an antenna’s phase-versus-frequency characteristic.

 

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