Abstract—Power amplifier is the key component in radar
systems, so linearity and efficiency is the most important
parameters in order to maintain the performance of power
amplifier, based on matlab curve fitting toolbox an analytical
model for improvement of linearity and efficiency of radio
frequency (RF) linear power amplifiers (PAs) is introduced.
This model simplifies the traditionally complicated methods of
analysis of RF PA. According to a change of the direct current
(DC) bias as a function of the alternative current (AC) input
signal of RF linear PA the linearity and efficiency can be
improved.
Index Terms—AC and DC analyses, ADS, biasing, efficiency
linearity.
The authors are with Nanjing University of aeronautics and astronautics,
college of electronic and information engineering, NANJING 210016 China
(e-mail: mslmany@gmail.com, a.mslmany@nuaa.edu.cn,
wangcaiyun@nuaa.edu.cn, qunsheng@nuaa.edu.cn).
[PDF]
Cite: Amir Al-Mslmany,Caiyun Wang, and Qunsheng Cao, "An Analytical Model for Improvement of Linearity and
Efficiency of RF Linear Power Amplifiers for Radar
Systems," International Journal of Modeling and Optimization vol. 4, no. 2, pp. 133-136, 2014.