RECENT PROGRESS IN FIBER OPTIC ANTENNAS FOR EMC MEASUREMENT

Recent progress in electromagnetic compatibility (EMC) technology has created a need for small and wideband antennas that can be used to mea sure the quality of EMC measurement facilities and to measure electric field strength for immunity tests and human hazard studies. Antennas using fiber optics are being developed because this kind of antenna ha s the wideband property and can eliminate the influence of the coaxial cable. This paper first summarizes the development of fiber optic ant ennas for EMC measurement and the construction of practical fiber opti c antennas. It then describes the recent progress that has been made i n Japan. This progress includes the electromagnetic source and the ele ctric field sensor using a spherical dipole antenna with O/E or E/O co nverters, and it includes a wideband electric field sensor using elect ro-optical crystals.