Young Yun Woo, Youngoo Yang, Jaehyok Yi, Joongjin Nam, Jeonghyeon Cha and Bumman Kim

As wireless systems evolve from second- to third- or fourth-generation, the linearity, efficiency and bandwidth requirements for power amplifiers become more stringent. Many techniques, including feedforward, envelope feedback and manifold types of predistorters, have been employed to effectively satisfy these performance requirements and to reduce the production costs for...