Tracing E-field probe responses to the dipole antenna factor

A well-defined E-field is often generated in an anechoic chamber by using the gain of the transmitting antenna, and E-field probes are calibrated by applying that field. However, the gain at a finite separation is no longer the same as that in the far-field region. In the present paper, a simple calibration method for E-field probes using dipole antenna factors (AF) is proposed. An E-field generated at a location is directly calibrated by using the AF of a dipole antenna. This method has considerable advantages in simplicity and compactness. In addition to analysis of the through performance of the method, uncertainty associated with this method is overviewed.