Title :
Some issues in using near field electric field strengths in system immunity evaluations
Author_Institution :
Motorola, Hitchin, UK
Abstract :
Large electric field strengths can be measured in the vicinity of transmitting antennas and it is therefore tempting to specify high immunity requirements for systems that have to operate near such devices. This paper shows that this is unnecessary, and gives several ways to approximately correlate near field measurements with the immunity threat levels required by normal EMC radiated immunity test methods
Keywords :
electric field measurement; electromagnetic compatibility; testing; transmitting antennas; equivalent electric field strength; high immunity requirements; immunity threat levels; large electric field strengths; near field electric field strengths; normal EMC radiated immunity test methods; radio field energy; system immunity evaluations; transmitting antennas; Antenna measurements; Electric variables measurement; Electromagnetic compatibility; Frequency; Immunity testing; Impedance; Interference; Radio transmitters; Transmitting antennas; Vehicle safety;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950523
