Overview of WiMAX system and related power amplifier design

Worldwide Interoperability for Microwave Access (WiMax) is an emerging standard for next generation wireless communication system with high data rate and broad coverage. It is based on the Orthogonal Frequency Division Multiplexing (OFDM) technology by taking advantage of ever increasing computing power in the DSP development. In this paper a brief overview of the WiMax technology will be provided. The focus of the discussion then will be on the special challenges in WiMax power amplifier design. Design examples will also be provided.