Simulation software validates chamber design to with in 1dB

摘要

Flomerics' MicroStripes software has played a key role in the design of an anechoic chamber by simulating the performance of the chamber within +/- 1 dB accuracy. Simulation accuracy is critical in designing anechoic chambers because the ANSI C63-4andEN50147-2 standards used for electromagnetic compatibility (EMC) require that the finished chamber be able to duplicate the performance of an open area test site within +/- 4 dB. The biggest challenge is that in the frequency range from 30 to 200 MHz, which define the chamber's dimensions, the near field effects make it critical to calculate analytically the electromagnetic performance of the chamber.