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Driving next-generation cellular tech

Posted: 12 Apr 2010 ?? ?Print Version ?Bookmark and Share

Keywords:cellular technology? wireless technology? RF hardware?

As the cellular industry moves to more powerful, flexible and sophisticated products, time-to-market remains vital while driving reductions in size, cost, complexity and test times. In new generations of phones, the number of bands and configurations per phone continues to grow; W-CDMA phones already support between two and four bands.

As a result, the RF front-end generally has become larger, more expensive and more complicated. It also typically requires more power. When the component count expands, power consumption becomes a challenge. For example, in a typical three-band designincluding the transceiver, receiver and front-end module (FEM)each supported W-CDMA band requires its own amplification and filtering, and each power amplifier (PA) requires a SAW filter between the transceiver and PA input. Every supported W-CDMA band also requires its own LNA and each low noise amp needs a SAW filter between it and the RX input.

To succeed in the next generation of wireless technology, RF hardware must become more compact, cost efficient, and capable of adapting many-band configurations.

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