A Study on the Reduction Method of the Magnetic Field Radiated from PCB Including Multi-Loops (n=2)

Author

Mutoh, Atsuo ; Nitta, Shuichi ; Yan, Yuxin

Author_Institution

Tokyo Fuji Univ., Fuji

fYear

2007

fDate

9-13 July 2007

Firstpage

1

Lastpage

6

Abstract

The near magnetic field radiated from a printed circuit board (PCB) including two multi-loops is studied in this paper. It is found that the magnetic field radiated from the PCB can be reduced by means of the parts layout making the current direction flowing through Vcc-GND pins of the adjacent IC to be opposite, based on the following phenomena of (1) and (2). (1) The total amounts of near magnetic field cannot always be obtained from addition of each near magnetic field from a single sub-circuit. (2) Digital IC can be characterized by the current model flowing from Vcc pin to GND pin.

Keywords

digital integrated circuits; electromagnetic interference; magnetic fields; printed circuits; PCB; adjacent IC; current direction flowing; digital IC; magnetic field; printed circuit board; single sub-circuit; Antenna measurements; Digital integrated circuits; Electromagnetic interference; Electronic equipment; Integrated circuit layout; Integrated circuit modeling; Inverters; Magnetic circuits; Magnetic field measurement; Magnetic fields;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2007. EMC 2007. IEEE International Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

1-4244-1349-4

Electronic_ISBN

1-4244-1350-8

Type

conf

DOI

10.1109/ISEMC.2007.88

Filename

4305668