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With the increasing demand for broadband connectivity anytime, anywhere in the world, the new generation of services and technology for RF power amplifier (PA) high performance requirements are also rising. More advanced signal modulation scheme using a signal with high peak to average power ratio, require lower signal distortion, and takes longer to send time, efficiency in low-voltage power supply issues have become more prominent. Mobile wireless broadband business services launched this year have benefited from the current PA products technology, the industry looks forward to better system solutions within a few years.
Led technology is WiMAX for mobile broadband connectivity. WiMAX offers higher data capacity than current 3G data services and can be efficiently allocated to support a wide range of Subscriber density. Now, the IEEE 802.16 standard, the commercialization of fixed WiMAX business services all over the world. South Korea in the past few years, mobile WiMAX service has been carried out, known as "WiBro". Sprint this year based on WiMAX technology companies in the United States carry out its "Xohm" service. Other service providers in the United States and parts of Europe to establish a WiMAX-based services.