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

作者：Zhai, Jianfeng^*; Zhang, Lei; Yu, Zhiqiang; Zhou, Jianyi; Hong, Wei

来源：IEEE Microwave and Wireless Components Letters, 2016, 26(3): 195-197.

DOI：10.1109/LMWC.2016.2524512

• Behavioral modeling
• canonical piecewise-linear CPWL)
• decomposed vector rotation (DVR)
• power amplifier (PA)
• volterra series

A modified canonical piecewise-linear CPWL)-based model is proposed for characterizing wideband power amplifiers. The model has a similar structure of the decomposed vector rotation (DVR) model but without DVR operations, in which the first-order basis function can be replaced by a second-order function by analysis. The model has lower complexity than the DVR model and the model parameter scan be estimated by least-square method. Experimental results show that the proposed model nearly gives the same normalized mean square error performance as the DVR model when a wideband Doherty power amplifier is excited by a 5-carrier long-term evolution advanced (LTE-A) signal of 100 MHz bandwidth.

• 出版日期2016-3
• 单位东南大学