Simulation and analysis of the properties of EMC anechoic chamber

• Main Authors: Jason, 陳建宏
• Other Authors: Ming-Shing Lin
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/76272037393335984959

碩士 === 大葉大學 === 電信工程學系碩士班 === 93 === Anechoic chamber can conduct indoor RE and RS test, has become a popular EMI/EMC test site. The theories of Geometrical Optics, Image Theory , Snell’s Law and Ray Tracing method, are used in this study to establish an analysis tool for the simulation of EMC chamber. The simulation program is written by Matlab. The program has four main simulations projects including NSA, NSTL, FU and RL. In this study, the properties of NSA, NSTL, FU and RL of EMC Chamber are evaluated by the simulation program. NSA of AIDC’s semi anechoic chamber and NSTL of USI’s full anechoic chamber are measured and compared with simulation results. The comparative result can be found, NSA is more difficult through ANSI C63.4 norm in low frequency, but NSTL all pass the theory value of Friis.