Title :
Effect of a shielding plane connected to ground plane of a PCB in EMI reduction
Author :
Oka, Naoto ; Miyazaki, Chiharu ; Uchida, Takeshi ; Nitta, Shuichi
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan
Abstract :
Effect of a shielding plane used for suppressing emission from a PCB is experimentally studied in this paper. The shielding plane is connected to some points of a ground plane contained in the PCB. In many cases of products, cables extend out of the shielding area and signal traces exist outside of this area. These cables and signal traces cancel the effect of shielding the devices inside of the shielding area. Moreover, in these cases, an extended shielding plane increases radiation level from the PCB
Keywords :
cables (electric); earthing; electromagnetic interference; electromagnetic shielding; interference suppression; printed circuit testing; EM emission suppression; EMI reduction; PCB; cables; ground plane; radiation level increase; shielding plane; signal traces; Agriculture; Building materials; Cables; Conducting materials; Digital integrated circuits; Electromagnetic interference; Electronic equipment; Information technology; Printed circuits; Research and development;
Conference_Titel :
Electromagnetic Compatibility, 1999 International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-9980748-4-9
DOI :
10.1109/ELMAGC.1999.801299
