A Study on Performance Degradation of Digital Electronic Equipment under Electromagnetic Disturbance

Takehiro TAKAHASHI  Hironori OKANIWA  Takashi SAKUSABE  Noboru SCHIBUYA  

IEICE TRANSACTIONS on Communications   Vol.E90-B   No.6   pp.1338-1343
Publication Date: 2007/06/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.6.1338
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on 2nd Pan-Pacific EMC Joint Meeting--PPEMC'06--)
Category: Measurement and Immunity
digital electronic equipment,  performance degradation,  through-put,  near field measurement,  electromagnetic disturbance,  interference of intra-equipment,  

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In this research, the performance degradation of the digital electronic equipment under electromagnetic (EM) disturbance was studied in order to investigate the interference of intra-equipment. To develop the evaluation method of the performance degradation, some communication indexes were measured under EM disturbance. From some experimental results, it is known that the performance degradation of the electronic equipment was estimated by the degradation of "through-put," one of the communication performance indexes. For further investigation of the interference of intra-equipment, the near EM field from a PCB of the electronic equipment and its performance degradation under EM disturbance were measured and compared. From the measured results, the relationship between near field measurement and performance degradation could be obtained in some extent. These facts enable us that the weak area under the EM disturbance application on PCB can be foreseen by measuring the near field emission from the equipment and vise versa.