Calibration of RF field strength meters

Abstract

Abstract-An intercomparison of field strength meters was performed during 1991-1993 over the frequency range 100 kHz-1000 MHz and field strength range 1-10 V/m using different calibration techniques. Four field sensors, electric as well as magnetic, have been used. Seven institutes participated in this intercomparison using at least three different calibration methods. A calibration uncertainty of less than 1 dB can be obtained if certain procedures are followed. The results are applicable in the fields of EMC testing and health care (nonionizing radiation).

An Interpolation Method to Calibrate Electromagnetic Probes in Semi-Anechoic Chambers

“…The SAC has been used previously for the calibration of EM probes. One of the most important works reported consists in the intercomparison between laboratories in seven European countries through the exchange of several probes using at least three different calibration methods [6]. The results show slight deviations between laboratories, mainly due to the influence of positioning the probe.…”

“…In this paper, an EM probe calibration method is proposed, in the frequency range from 80 MHz to 1 GHz inside a 3-meter SAC, taking into consideration of the recommendations of IEEE 1309 [3] and other publications [4][5][6][7][8][9][10][11]. The E-field strengths were calibrated at 2, 4, 9 and 20 V/m, and the reference probes used were the Multi Axis Monopole Probe (ETS-Lindgren HI-6105) and the Orthogonal Dipole Probe (ETS-Lindgren HI-6053).…”

“…In order to validate this method, it is necessary to meet the requirements established in IEEE 1309 [3] and other investigations [4][5][6][7][8][9][10][11].…”

“…The use of SAC in the intercomparison of EM field measurements [6] has been proposed and show satisfactory results for antenna calibration.…”