RF amplifiers linearization approach using suppression of even-order intermodulation distortion with adaptive biasing

Abstract

Power Amplifiers (PAs) are the essential component for most wireless communications system. The key issues of PAs for the next generation mobile system are linearity of the input-output characteristics and power-added-efficiency (PAE). This is extremely important to ensure that adjacent channel interference is kept within the tight specifications required by most systems. In this project, a simple and low cost technique including both the suppressions of even-order intermodulation products and adaptive bias stabilization for PA linearization and smart power handling are realized.