Title :
Time-Switched Derivative Superposition for FET Amplifier Linearization
Author :
Blockley, Peter Stuart ; Parker, Anthony Edward
Author_Institution :
Dept. of Electron., Macquarie Univ., Sydney, NSW
Abstract :
A traditional derivative superposition amplifier combines the outputs of two transistors biased at different gate voltages such that the distortion from each device cancel. A time-switched derivative superposition technique is proposed, that requires only a single transistor. It is shown that such a configuration is simple to implement, while improving both linearity and power consumption of a single transistor amplifier.
Keywords :
field effect transistor circuits; linearisation techniques; microwave amplifiers; nonlinear distortion; switched networks; FET amplifier linearization; field effect transistor amplifiers; nonlinear distortion; single transistor amplifier; time-switched derivative superposition; Complexity theory; Energy consumption; FETs; Feedback; High power amplifiers; Linearity; Phase distortion; Power amplifiers; Power harmonic filters; Voltage; Field effect transistor (FET) amplifiers; linearization; nonlinear distortion;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.2007710
