White Paper

RF Field Probe Calibration And Usage

Source: AR

RF field probes are a required piece of test equipment used for measuring the intensity of radiated RF fields. The use of a field probe may seem straightforward; however, there are numerous aspects of using field probes that can affect the accuracy of RF measurements. Probe mounting positioning and orientation, and sources of additional field contributions should be considered when making field measurements. Understanding these factors is important to allow achieving the best accuracy in field measurements.

Calibrations and Correction Factors are also important concepts to understand to achieve accurate field probe measurements. Improper, or lack of use of Correction Factors, will affect the accuracy of the field measurement. Since the field probe is used to establish the field intensity, poor measurements could lead to over-testing of the test object, where the test object is subjected to higher fields than intended. Conversely, poor measurements could cause the test object to be under-tested, where the test object is tested to field intensities less than required by the test standard. Understanding the factors that affect field probe accuracy is crucial to achieving the best results in making RF field measurements.

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