A Band-Limited Canonical Piecewise-Linear Function-Based Behavioral Model for Wideband Power Amplifiers

作者：Zhai, Jianfeng^*; Li, Yang; Yu, Chao; Zhang, Lei; Zhou, Jianyi; Hong, Wei

来源：IEEE Microwave and Wireless Components Letters, 2017, 27(11): 1022-1024.

DOI：10.1109/LMWC.2017.2750092

• Band-limited
• behavioral modeling
• canonical piecewise-linear CPWL)
• power amplifier (PA)

A band-limited canonical piecewise-linear CPWL)-based model is proposed for wideband power amplifiers (PAs). The model has a similar structure of the band-limited dynamic deviation reduction (DDR) Volterra series model but without high-order terms and long finite impulse response filters, which are replaced by CPWL. The model has lower complexity and more flexibility than the band-limited DDR Volterra series model and the model parameters can be estimated by the least-square method. Experimental results show that the proposed model nearly gives the same normalized mean square error and digital predistortion performance as the band-limited Volterra series when a wideband PA is excited by a 5-carrier long-term evolution advanced signal of 100-MHz bandwidth.

• 出版日期2017-11
• 单位东南大学