A Novel Technique for Determining Kernels of Volterra Based Behavioral Models for RF Amplifiers

This paper presents a new technique to determine the kernels of Volterra series based behavioral models of RF amplifiers in the frequency domain. A model with three kernels and a memory length of one is developed. The kernels of this model are assigned only by using a two-tone test. No knowledge of the integrated circuit is needed to determine all model parameters. The derivation of such a model out of well known mathematical basics is shown such as the used measurement setup. Measured data and simulation deliverables are being compared and show a good match. A comparison between a Saleh model and the new modeling approach concludes this paper.