Title :
Generation and measurement of a reference field for round-robin comparison purposes
Author :
Carobbi, Carlo ; Cati, Marco ; Panconi, Carlo
Author_Institution :
Univ. di Firenze, Florence
Abstract :
An accurately known reference field is often the reference quantity in round-robin comparisons of electromagnetic field measurements. The limits of accuracy inherent to the definition and measurement of a reference electromagnetic field are here discussed and quantified in the case of measurements at 3 m distance from the field source and in the 30-300 MHz frequency range. The insertion loss between the transmitting and receiving antenna is considered here as an alternative reference quantity. A method of validation of insertion loss predictions delivering an accuracy of a few tens of dB is described and experimentally demonstrated. Reference to a practical selection of field source and receiving antenna is made for general applicability of the results here obtained.
Keywords :
electric field measurement; electromagnetic fields; magnetic field measurement; measurement uncertainty; receiving antennas; transmitting antennas; distance 3 m; electromagnetic field measurements; frequency 30 MHz to 300 MHz; insertion loss; receiving antenna; transmitting antenna; Accuracy; Antenna measurements; Electromagnetic fields; Electromagnetic measurements; Frequency measurement; Immunity testing; Impedance; Insertion loss; Instruments; Receiving antennas; Round-robin comparison; electromagnetic field measurements; measurement uncertainty; reference electromagnetic field;
Conference_Titel :
Electromagnetic Compatibility, 2008. EMC 2008. IEEE International Symposium on
Conference_Location :
Detroit, MI
Print_ISBN :
978-1-4244-1699-8
Electronic_ISBN :
978-1-4244-1698-1
DOI :
10.1109/ISEMC.2008.4652092