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Effectiveness of a dielectric probe calibration using deionized, distilled and tap water

A dielectric materials measurement can provide important parameter information for wireless applications that require an antenna design in complex environments and for such measurements, an accurate calibration technique is critical to achieve consistency, accuracy and reliability. In this paper, a study on the calibration method of a dielectric probe is performed. Specifically, a Keysight's N1500 coaxial probe was used and experiments were performed using samples of deionized, distilled, and tap water to study the calibration effectiveness. Following each calibration method, the dielectric properties of SPEAG tissue simulating liquid were measured over a broadband frequency range and results were compared with the datasheet. The results showed that despite the differences in the calibration methods, the measurements obtained from these experiments were in good agreement.