Murata’s Small Ferrite Beads D...

Murata’s Small Ferrite Beads Devices Suppress High Frequency NoiseMurata’s Small Ferrite Beads Devices Suppress High Frequency Noise

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long with the growing application of digital systems and wireless equipment, electromagnetic interference (EMI) suppression parts are becoming increasingly important in the design of electronic equipment. Originally, EMI suppression aimed at removing noise interference in radio and TV reception. The main cause of EMI was VHF/UHF noise in the 100~400MHz bands, so that EMI suppression parts were effective for suppressing noise in these frequency bands. Recently, EMI problems were encountered mainly in frequency bands higher than 400MHz~1GHz. This is due to the fact that the operating clock frequencies of noise-radiating equipment have been raised. Accordingly, the operation speeds of ICs used in such equipment have been i