Title :
X-parameter measurement and simulation of an RF amplifier designed to drive a comb-generator
Author :
Dongdong, Xin ; Maoliu, Lin
Author_Institution :
Inst. of Electron. & Inf. Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
X- parameters, referred to as the parameters of the Poly-Harmonic Distortion (PHD) nonlinear behavioral model as well, have been introduced as the natural extension of S-parameters to nonlinear devices under large-signal drive. This paper describes the approach and procedure of X-parameter characterization and nonlinear simulation of an RF amplifier designed to drive a comb-generator, including measurement experiment, modeling, and model validation. Firstly, a specially configured Nonlinear Vector Network Analyzer (NVNA) is used to the measurements. Secondly, the X-parameters are extracted. Then the parameters are used with the X-parameter framework in ADS to enable accurate nonlinear simulation of device behavior. Independent NVNA measurements validate the model predictions, and show the inadequacy of `Hot S22´ in predicting such performance.
Keywords :
S-parameters; microwave generation; microwave measurement; microwave power amplifiers; network analysers; radiofrequency amplifiers; RF amplifier; S-parameters; X-parameter measurement; comb-generator; large-signal drive; nonlinear devices; nonlinear vector network analyzer; poly-harmonic distortion nonlinear behavioral model; Frequency measurement; Harmonic analysis; Instruments; Microwave FET integrated circuits; Microwave amplifiers; Microwave measurements; Power system harmonics; ADS; NVNA; X-parameters; neural network;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8158-3
DOI :
10.1109/ICEMI.2011.6037673
