Title :
A diode-based predistortion linearizer for traveling wave tube amplifiers
Author :
Hu, Xin ; Wang, Gang ; Wang, Zi-Cheng ; Luo, Ji-Run
Abstract :
The simulation and design of a predistortion linearizer based on Schottky and varactor diodes are presented. The linearizer is capable of providing different combinations of the amplitude and phase characteristics for the use of the different traveling wave tube amplifiers (TWTAs). About 4-6 dB gain expansion and 30-60 degrees phase shift can be compensated for the TWTAs saturation response over input power dynamic range with the linearizer.
Keywords :
Schottky diodes; travelling wave amplifiers; varactors; Schottky diode; TWT; diode-based predistortion linearizer; power dynamic range; predistortion linearizer; traveling wave tube amplifier; varactor diode; Electron tubes; Impedance matching; Isolators; Predistortion; Reflection; Schottky diodes; Varactors; Predistortion linearizer; Schottky Diode; Traveling Wave Tube Amplifier; Varactor diode;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5746964
