Murata Shrinks Further Isolator to Fit Today's Mobile Phones

摘要

Nowadays, the adoption of International Mobile Telecommunications 2000 (IMT-2000) standard for 3G mobile phones is advancing. Under the IMT-2000 banner, the use of the Wideband Code Division Multiple Access (W-CDMA) system in particular is spreading in Japan and Europe. This shows the ongoing evolution of mobile communication standards from one generation to another. The recent hike in transmission rate and multiplication of functions in mobile phones resulted in an increase in the number of components and current consumption. Moreover, a review of the number of frequency bands used for mobile phones reveals that there should be a switch from conventional dual-band to triple-band in order to meet the rise in demand for mobile phone services. This change will increase the number of mobile phone components further. Given the circumstances, there are now stronger requirements for radio frequency (RF) components of mobile phones to become more miniaturized, thin, lightweight and efficient to bring down current consumption.